How long is the flight from London to Chicago O'Hare Intl Airport?

TAP AIR PORTUGAL, Scandinavian Airlines, and Icelandair can get you from London to Chicago O'Hare Intl Airport in just under 11h 25m. Your travel time can differ by up to 18h. There are 3960 mi between London and Chicago O'Hare Intl Airport. This flight may include one or multiple stops.

What are the cheapest airlines flying from London to Chicago O'Hare Intl Airport round-trip?

Flying on Icelandair is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at £315. Additional return tickets that might be worth considering are offered by Virgin Atlantic and Scandinavian Airlines, with the lowest prices starting at £348 and £360, respectively. You may be able to fly from London to Chicago O'Hare Intl Airport for 42% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from London to Chicago O'Hare Intl Airport one-way?

For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as £391. Users have also found prices from £391 and £393 on Delta and British Airways, respectively.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What are the most popular routes from London to Chicago O'Hare Intl Airport?

When deciding which route to take from London to Chicago O'Hare Intl Airport consider London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl or London City - Chicago O'Hare Intl as they are the most popular.

What are the cheapest flights from London to Chicago O'Hare Intl Airport?

The cheapest flight price from London to Chicago O'Hare Intl Airport is £404. On average you can expect to pay £1,271. The most popular route, (London Heathrow - Chicago O'Hare Intl), can usually be booked for £376.

What are the most reliable airlines from London to Chicago O'Hare Intl Airport?

Consider Malaysia Airlines (80%), Air Canada (79%) or Austrian Airlines (79%) when booking your flight. These represent the most reliable airlines when flying from London to Chicago O'Hare Intl Airport.

What are the most popular airlines that fly from London to Chicago O'Hare Intl Airport?

Before booking your flight from London to Chicago O'Hare Intl Airport check out the most popular airlines for this route: British Airways, Lufthansa or Finnair.

Can I find deals for flights from London to O'Hare Intl that include hotel bookings?

Yes. In addition to deals on London to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to O'Hare Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to O'Hare Intl.

Can I find deals for business class flights from London to O'Hare Intl?

Yes. Cheapflights offers flight deals from London to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£391+ Flights from London to Chicago O'Hare Intl Airport

Q: How much does it cost for a return flight from London to Chicago O'Hare Intl Airport?

Airfare is below average for this route at the moment. London to Chicago O'Hare Intl Airport flights typically cost between £440 and £638 in January. The cheapest return flight price found within the last 3 days was £397 on Multiple Airlines (12 Jan-27 Jan).

Cheapflights Tip: The best prices from London to Chicago O'Hare Intl are usually found in February or September, booked 70 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Find flight deals from London to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from London to O'Hare Intl
Explore the most affordable flight options available from London to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Fri 7/1107:05LHR - ORD

2 stops15h 40mScandinavian Airlines

Fri 28/1119:20ORD - LHR

2 stops17h 10mScandinavian Airlines

Deal found 13/10£398

Mon 17/1110:20LHR - ORD

1 stop12h 25mScandinavian Airlines

Mon 1/1219:20ORD - LHR

1 stop16h 20mScandinavian Airlines

Deal found 13/10£399

Sat 8/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Wed 12/1118:30ORD - LTN

2 stops22h 35mMultiple Airlines

Deal found 13/10£399

Thu 6/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Thu 13/1118:30ORD - STN

2 stops22h 50mMultiple Airlines

Deal found 13/10£399

Thu 6/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Wed 12/1119:10ORD - LGW

1 stop13h 55mTAP AIR PORTUGAL

Deal found 14/10£400

Thu 30/1006:40LHR - ORD

1 stop17h 05mScandinavian Airlines

Mon 10/1119:20ORD - LHR

1 stop20h 20mScandinavian Airlines

Deal found 13/10£400

Thu 6/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Fri 14/1120:15ORD - LGW

1 stop13h 30mTAP AIR PORTUGAL

Deal found 14/10£400

Tue 11/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Tue 18/1118:30ORD - STN

2 stops17h 50mMultiple Airlines

Deal found 14/10£400

Fri 31/1019:30LHR - ORD

1 stop27h 15mScandinavian Airlines

Fri 7/1119:20ORD - LHR

1 stop14h 40mScandinavian Airlines

Deal found 13/10£401

Thu 6/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Thu 13/1118:30ORD - LTN

2 stops15h 30mMultiple Airlines

Deal found 13/10£401

Fri 21/1114:00LGW - ORD

1 stop25h 06mMultiple Airlines

Fri 12/1212:09ORD - LGW

1 stop15h 51mMultiple Airlines

Deal found 14/10£402

Fri 7/1110:20LHR - ORD

1 stop12h 25mScandinavian Airlines

Sat 15/1119:20ORD - LHR

1 stop17h 10mScandinavian Airlines

Deal found 14/10£402

Best flights from London to O'Hare Intl
Discover carefully curated flight deals from London to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 October 2025.

Sat 8/1108:30STN - ORD

2 stops14h 50mMultiple Airlines

Wed 12/1118:30ORD - STN

2 stops14h 35mMultiple Airlines

Deal found 13/10£399

Thu 13/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Sun 16/1120:25ORD - LGW

1 stop13h 20mTAP AIR PORTUGAL

Deal found 13/10£400

Thu 27/1107:05LHR - ORD

2 stops15h 40mScandinavian Airlines

Sat 6/1219:20ORD - LHR

2 stops17h 30mScandinavian Airlines

Deal found 13/10£422

Sat 6/1218:00LHR - ORD

1 stop25h 01mUnited Airlines

Sun 7/1215:45ORD - LHR

Nonstop8h 10mUnited Airlines

Deal found 14/10£442

Mon 24/1120:35LHR - ORD

1 stop26h 45mIcelandair

Mon 1/1218:30ORD - LHR

1 stop10h 20mIcelandair

Deal found 13/10£452

Mon 12/118:40LGW - ORD

1 stop24h 05mSWISS

Wed 21/118:10ORD - LGW

2 stops17h 40mSWISS

Deal found 12/10£503

Thu 6/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Thu 13/1118:30ORD - LTN

2 stops15h 30mMultiple Airlines

Deal found 13/10£401

Mon 10/1107:05LHR - ORD

2 stops15h 40mScandinavian Airlines

Mon 24/1119:20ORD - LHR

2 stops17h 30mScandinavian Airlines

Deal found 13/10£422

Sat 22/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Fri 28/1118:30ORD - STN

2 stops20h 50mMultiple Airlines

Deal found 13/10£405

Mon 17/1109:00LHR - ORD

1 stop13h 20mUnited Airlines

Mon 1/1217:50ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 14/10£461

Thu 27/1107:05LHR - ORD

2 stops15h 40mScandinavian Airlines

Thu 4/1219:20ORD - LHR

2 stops17h 30mScandinavian Airlines

Deal found 13/10£423

Sat 6/1211:55LGW - ORD

1 stop11h 25mIcelandair

Mon 8/1218:30ORD - LGW

1 stop10h 25mIcelandair

Deal found 14/10£470

Mon 12/112:50LGW - ORD

2 stops24h 23mMultiple Airlines

Tue 27/119:05ORD - LGW

1 stop28h 55mMultiple Airlines

Deal found 14/10£408

Sun 1/218:40LGW - ORD

1 stop27h 40mSWISS

Mon 16/218:35ORD - LGW

2 stops17h 15mSWISS

Deal found 14/10£509

Mon 10/1109:00LHR - ORD

1 stop13h 20mUnited Airlines

Mon 24/1117:50ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 13/10£464

Fri 31/1007:05LHR - ORD

2 stops15h 40mScandinavian Airlines

Fri 7/1119:20ORD - LHR

2 stops17h 10mScandinavian Airlines

Deal found 14/10£424

Wed 25/311:55LGW - ORD

1 stop11h 25mIcelandair

Mon 15/622:40ORD - LGW

1 stop10h 00mIcelandair

Deal found 14/10£484

Thu 8/114:00LGW - ORD

1 stop33h 04mMultiple Airlines

Fri 23/106:05ORD - LGW

1 stop21h 55mMultiple Airlines

Deal found 14/10£409

Wed 28/118:40LGW - ORD

1 stop24h 05mSWISS

Thu 12/218:10ORD - LGW

2 stops17h 40mSWISS

Deal found 14/10£512

Sat 6/1210:20LHR - ORD

1 stop12h 25mScandinavian Airlines

Sun 7/1219:20ORD - LHR

1 stop17h 10mScandinavian Airlines

Deal found 14/10£425

Mon 10/1108:50LTN - ORD

1 stop15h 05mMultiple Airlines

Mon 24/1115:50ORD - LTN

1 stop10h 45mMultiple Airlines

Deal found 13/10£413

Tue 9/1211:55LGW - ORD

1 stop11h 25mIcelandair

Sun 28/1218:30ORD - LGW

1 stop10h 25mIcelandair

Deal found 14/10£503

Mon 10/1119:10LCY - ORD

1 stop23h 35mSWISS

Mon 24/1121:35ORD - LCY

2 stops15h 05mSWISS

Deal found 13/10£519

Tue 25/1119:50LHR - ORD

2 stops26h 55mScandinavian Airlines

Wed 3/1219:20ORD - LHR

2 stops17h 30mScandinavian Airlines

Deal found 13/10£438

Mon 10/1108:30STN - ORD

1 stop11h 30mMultiple Airlines

Mon 24/1115:50ORD - STN

1 stop16h 30mMultiple Airlines

Deal found 13/10£413

Mon 27/1019:10LCY - ORD

1 stop23h 35mSWISS

Mon 3/1116:10ORD - LCY

1 stop14h 40mSWISS

Deal found 13/10£524

Thu 27/1106:30STN - ORD

1 stop13h 30mMultiple Airlines

Sun 7/1219:40ORD - STN

1 stop13h 10mMultiple Airlines

Deal found 14/10£415

Thu 30/1010:20LHR - ORD

1 stop13h 25mScandinavian Airlines

Sun 2/1119:20ORD - LHR

1 stop16h 20mScandinavian Airlines

Deal found 14/10£462

Sat 22/1118:40LGW - ORD

1 stop24h 05mSWISS

Mon 1/1221:35ORD - LGW

2 stops14h 15mSWISS

Deal found 13/10£529

Thu 27/1109:00LTN - ORD

1 stop11h 00mMultiple Airlines

Sun 7/1219:40ORD - LTN

1 stop10h 05mMultiple Airlines

Deal found 14/10£417

Direct flights from London to O'Hare Intl
Explore direct flight options from London to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 October 2025.

Wed 12/1107:40LHR - ORD

Nonstop9h 20mLufthansa

Wed 3/1215:45ORD - LHR

Nonstop8h 10mLufthansa

Deal found 13/10£467

Wed 31/1213:35LHR - ORD

Nonstop9h 25mBrussels Airlines

Thu 15/115:45ORD - LHR

Nonstop8h 10mBrussels Airlines

Deal found 13/10£470

Tue 11/1110:25LHR - ORD

Nonstop9h 20mAustrian Airlines

Mon 17/1121:05ORD - LHR

Nonstop8h 10mAustrian Airlines

Deal found 13/10£472

Mon 17/1107:55LHR - ORD

Nonstop9h 20mLufthansa

Mon 1/1215:45ORD - LHR

Nonstop8h 10mLufthansa

Deal found 14/10£476

Mon 10/1110:25LHR - ORD

Nonstop9h 20mAustrian Airlines

Mon 24/1121:05ORD - LHR

Nonstop8h 10mAustrian Airlines

Deal found 12/10£476

Mon 17/1113:35LHR - ORD

Nonstop9h 25mAustrian Airlines

Mon 1/1217:50ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 14/10£478

Mon 10/1113:35LHR - ORD

Nonstop9h 25mAustrian Airlines

Mon 17/1117:50ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 13/10£479

Wed 19/1110:25LHR - ORD

Nonstop9h 20mAustrian Airlines

Tue 2/1221:05ORD - LHR

Nonstop8h 10mAustrian Airlines

Deal found 13/10£479

Mon 17/1110:25LHR - ORD

Nonstop9h 20mAustrian Airlines

Wed 3/1217:50ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 13/10£480

Wed 19/1110:25LHR - ORD

Nonstop9h 20mMultiple Airlines

Mon 1/1217:50ORD - LHR

Nonstop8h 05mMultiple Airlines

Deal found 13/10£482

Mon 12/110:25LHR - ORD

Nonstop9h 20mAustrian Airlines

Mon 19/117:50ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 12/10£482

Tue 25/1112:35LHR - ORD

Nonstop8h 50mBritish Airways

Tue 2/1217:10ORD - LHR

Nonstop7h 45mBritish Airways

Deal found 14/10£483

Last-minute flights from London to O'Hare Intl
Discover last-minute flight deals from London to O'Hare Intl. Data last updated 15 October 2025 and is based on user searches.

Mon 3/1109:00LGW - ORD

1 stop13h 00mMultiple Airlines

Sun 9/1115:50ORD - LGW

1 stop17h 45mMultiple Airlines

Deal found 14/10£405

Mon 3/1108:50LTN - ORD

1 stop13h 10mMultiple Airlines

Sun 9/1115:50ORD - LTN

1 stop11h 05mMultiple Airlines

Deal found 14/10£405

Mon 3/1106:30STN - ORD

1 stop15h 30mMultiple Airlines

Sun 9/1119:40ORD - STN

1 stop11h 40mMultiple Airlines

Deal found 14/10£405

Thu 6/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Thu 13/1118:30ORD - STN

2 stops22h 50mMultiple Airlines

Deal found 13/10£399

Thu 6/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Wed 12/1119:10ORD - LGW

1 stop13h 55mTAP AIR PORTUGAL

Deal found 14/10£400

Thu 6/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Fri 14/1120:15ORD - LGW

1 stop13h 30mTAP AIR PORTUGAL

Deal found 14/10£400

Thu 6/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Thu 13/1118:30ORD - LTN

2 stops15h 30mMultiple Airlines

Deal found 13/10£401

Thu 6/1116:05LGW - ORD

2 stops29h 20mMultiple Airlines

Tue 11/1106:40ORD - LGW

1 stop17h 20mMultiple Airlines

Deal found 13/10£404

Sat 8/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Wed 12/1118:30ORD - LTN

2 stops22h 35mMultiple Airlines

Deal found 13/10£399

Tue 11/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Tue 18/1118:30ORD - STN

2 stops17h 50mMultiple Airlines

Deal found 14/10£400

Fri 21/1114:00LGW - ORD

1 stop25h 06mMultiple Airlines

Fri 12/1212:09ORD - LGW

1 stop15h 51mMultiple Airlines

Deal found 14/10£402

Sat 22/1116:35LGW - ORD

1 stop28h 10mTAP AIR PORTUGAL

Fri 28/1120:15ORD - LGW

1 stop31h 35mTAP AIR PORTUGAL

Deal found 13/10£406

One-way flights from London to O'Hare Intl
Search for one-way flight options from London to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 15 October 2025.

Fri 13/206:30LHR - ORD

2 stops16h 07mDelta

Deal found 13/10£391

Tue 10/209:00LTN - ORD

1 stop16h 15mMultiple Airlines

Deal found 12/10£391

Sun 30/1108:15STN - ORD

2 stops40h 10mMultiple Airlines

Deal found 12/10£391

Mon 20/1020:05SEN - ORD

3 stops46h 40mMultiple Airlines

Deal found 14/10£392

Fri 24/1010:55LGW - ORD

1 stop19h 04mMultiple Airlines

Deal found 13/10£392

Fri 13/208:40LCY - ORD

1 stop11h 40mDelta

Deal found 14/10£392

Sun 23/1112:25LHR - ORD

2 stops28h 10mMultiple Airlines

Deal found 13/10£392

Sun 30/1113:10LTN - ORD

1 stop30h 50mMultiple Airlines

Deal found 12/10£392

Thu 11/1214:10LHR - ORD

Nonstop8h 50mBritish Airways

Deal found 14/10£393

Tue 23/1207:40STN - ORD

2 stops37h 20mMultiple Airlines

Deal found 13/10£393

Mon 5/108:00LTN - ORD

1 stop15h 20mMultiple Airlines

Deal found 13/10£394

Sat 28/314:40STN - ORD

2 stops30h 20mMultiple Airlines

Deal found 12/10£394

Cheap flight deals from London to O'Hare Intl

Round-trip from	£397
One-way from	£391
Popular in	July
Cheapest in	February
Average price	£556
Good round-trip deal	£497 or less
Good one-way deal	£472 or less

12/1-27/1
3 total stops
53h 18m total
London to Chicago

Search Deals

Delta
13/2
2 total stops
16h 07m total
London to Chicago

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£52 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to Chicago O'Hare Intl.

Search Deals

Price to beat on a one-way flight from London (LON) to Chicago O'Hare Intl.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

STN - ORD

STNORD

London Stansted

Sat 8/11

08:30-17:20

2 stops14h 50m

Chicago O'Hare Intl

Wed 12/11

18:30-15:05

2 stops14h 35m

£399

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 13/11

16:00-15:25

1 stop29h 25m

Chicago O'Hare Intl

Sun 16/11

20:25-15:45

1 stop13h 20m

£400

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 6/11

09:00-17:20

2 stops14h 20m

Chicago O'Hare Intl

Thu 13/11

18:30-16:00

2 stops15h 30m

£401

LondonChicago

STN - ORD

STNORD

London Stansted

Sat 22/11

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

Fri 28/11

18:30-21:20

2 stops20h 50m

£405

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 12/1

12:50-07:13

2 stops24h 23m

Chicago O'Hare Intl

Tue 27/1

19:05-06:00

1 stop28h 55m

£408

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 8/1

14:00-17:04

1 stop33h 04m

Chicago O'Hare Intl

Fri 23/1

06:05-10:00

1 stop21h 55m

£409

LondonChicago

LTN - ORD

LTNORD

London Luton

Mon 10/11

08:50-17:55

1 stop15h 05m

Chicago O'Hare Intl

Mon 24/11

15:50-08:35

1 stop10h 45m

£413

LondonChicago

STN - ORD

STNORD

London Stansted

Mon 10/11

08:30-14:00

1 stop11h 30m

Chicago O'Hare Intl

Mon 24/11

15:50-14:20

1 stop16h 30m

£413

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 27/11

06:30-14:00

1 stop13h 30m

Chicago O'Hare Intl

Sun 7/12

19:40-14:50

1 stop13h 10m

£415

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 27/11

09:00-14:00

1 stop11h 00m

Chicago O'Hare Intl

Sun 7/12

19:40-11:45

1 stop10h 05m

£417

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 60 results

...

Best time to book a flight from London to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from London with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Chicago O'Hare Intl Airport

How far ahead should I book a flight from London to Chicago O'Hare Intl Airport?

The best time to book flights from London to Chicago O'Hare Intl Airport is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London to Chicago O'Hare Intl Airport?

Currently, March is the cheapest month in which you can book a flight from London to Chicago O'Hare Intl Airport (average of £304). Flying from London to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £506). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to ORD?

It’s typically best to fly out from London to Chicago O'Hare Intl Airport in the morning. Doing so could potentially save you 7% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from London to Chicago O'Hare Intl Airport?

Travellers seeking maximum savings on their London to Chicago O'Hare Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Chicago O'Hare Intl Airport

The most flights from LON to ORD are scheduled on a Monday (53 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (47 on average).

How much does it cost for a return flight from London to Chicago O'Hare Intl Airport?

What’s the top stopover airport for flights from London to Chicago O'Hare Intl Airport?

Reykjavik (KEF) – chosen by Cheapflights users on 42% of one-stop itineraries from London to Chicago O'Hare Intl Airport on Cheapflights.

What’s the cheapest stopover airport for flights from London to Chicago O'Hare Intl Airport?

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £349.

What’s the fastest stopover option from London to Chicago O'Hare Intl Airport?

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 10h 50m.

Which airport typically offers the quickest stopover for flights from London to Chicago O'Hare Intl Airport?

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 28m.

Reviews of airlines servicing O'Hare Intl

Get a feel of what it's like to fly with Finnair, Aer Lingus, andIcelandair from London to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Finnair

7.6

Good

1,332 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2025

WAW - HEL

Aer Lingus

7.2

Good

1,337 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2025

WAW - HEL

Icelandair

7.0

Good

556 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2025

WAW - HEL

Lufthansa

6.8

Okay

7,489 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2025

WAW - HEL

British Airways

6.7

Okay

7,457 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2025

WAW - HEL

Related info for your journey

How long is the flight from London to Chicago O'Hare Intl Airport?
TAP AIR PORTUGAL, Scandinavian Airlines, and Icelandair can get you from London to Chicago O'Hare Intl Airport in just under 11h 25m. Your travel time can differ by up to 18h. There are 3960 mi between London and Chicago O'Hare Intl Airport. This flight may include one or multiple stops.
What are the cheapest airlines flying from London to Chicago O'Hare Intl Airport round-trip?
Flying on Icelandair is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at £315. Additional return tickets that might be worth considering are offered by Virgin Atlantic and Scandinavian Airlines, with the lowest prices starting at £348 and £360, respectively. You may be able to fly from London to Chicago O'Hare Intl Airport for 42% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from London to Chicago O'Hare Intl Airport one-way?
For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as £391. Users have also found prices from £391 and £393 on Delta and British Airways, respectively.
What are the most popular routes from London to Chicago O'Hare Intl Airport?
When deciding which route to take from London to Chicago O'Hare Intl Airport consider London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl or London City - Chicago O'Hare Intl as they are the most popular.
What are the most reliable airlines from London to Chicago O'Hare Intl Airport?
Consider Malaysia Airlines (80%), Air Canada (79%) or Austrian Airlines (79%) when booking your flight. These represent the most reliable airlines when flying from London to Chicago O'Hare Intl Airport.
What are the cheapest flights from London to Chicago O'Hare Intl Airport?
The cheapest flight price from London to Chicago O'Hare Intl Airport is £404. On average you can expect to pay £1,271. The most popular route, (London Heathrow - Chicago O'Hare Intl), can usually be booked for £376.
Can I find deals for flights from London to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on London to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to O'Hare Intl.
Can I find deals for business class flights from London to O'Hare Intl?
Yes. Cheapflights offers flight deals from London to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Chicago O'Hare Intl Airport?
Currently, March is the cheapest month in which you can book a flight from London to Chicago O'Hare Intl Airport (average of £304). Flying from London to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £506). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 10 airlines flying from London to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£315	Average£487	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£348	Average£506	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Scandinavian Airlines	Cheapest£360	Average£505	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Aer Lingus	Cheapest£371	Average£585	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
TAP AIR PORTUGAL	Cheapest£372	Average£619	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Brussels Airlines	Cheapest£389	Average£546	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Lufthansa	Cheapest£400	Average£583	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Austrian Airlines	Cheapest£405	Average£596	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
British Airways	Cheapest£408	Average£572	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£410	Average£547	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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Cheap flights from London to Chicago O'Hare Intl Airport from £391

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Chicago O'Hare Intl are usually found in February or September, booked 70 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Find flight deals from London to O'Hare Intl

Cheapest flights from London to O'Hare IntlExplore the most affordable flight options available from London to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Explore the most affordable flight options available from London to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Cheap flight deals from London to O'Hare Intl

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Best time to book a flight from London to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from London with our price prediction graph.

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Everything you need to know about your flight from London to Chicago O'Hare Intl Airport

How far ahead should I book a flight from London to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a return flight from London to O'Hare Intl. Price data was last updated on 10 October 2025.

What is the cheapest month to book a flight from London to Chicago O'Hare Intl Airport?

What is the cheapest time of day to fly from LON to ORD?

Find hourly flight availability from London to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 October 2025.

What is the cheapest day to fly from London to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly return from London to O'Hare Intl. Price data was last updated on 16 December 2024.

Weekly flight availability from London to Chicago O'Hare Intl Airport

Explore weekly flight availability from London to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 October 2025.

How much does it cost for a return flight from London to Chicago O'Hare Intl Airport?

What’s the top stopover airport for flights from London to Chicago O'Hare Intl Airport?

Share of one-stop return flights from London to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from London to Chicago O'Hare Intl Airport?

Average return fare for one-stop flights from London to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from London to Chicago O'Hare Intl Airport?

Shortest average travel time for one-stop one-way flights from London to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from London to Chicago O'Hare Intl Airport?

Average stopover duration for one-stop one-way flights from London to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing O'Hare Intl

Get a feel of what it's like to fly with Finnair, Aer Lingus, andIcelandair from London to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from London to Chicago O'Hare Intl Airport?

What are the cheapest airlines flying from London to Chicago O'Hare Intl Airport round-trip?

What are the cheapest airlines to fly from London to Chicago O'Hare Intl Airport one-way?

What are the most popular routes from London to Chicago O'Hare Intl Airport?

What are the most reliable airlines from London to Chicago O'Hare Intl Airport?

What are the cheapest flights from London to Chicago O'Hare Intl Airport?

Can I find deals for flights from London to O'Hare Intl that include hotel bookings?

How can I find direct flights from London to O'Hare Intl?

Can I find deals for business class flights from London to O'Hare Intl?

What is the cheapest month to book a flight from London to Chicago O'Hare Intl Airport?

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Fly from London to O'Hare Intl on these airlines

Choose from the following airlines for your flight from London to O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on 15 October 2025.

Top 10 airlines flying from London to O'Hare Intl

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Can Cheapflights notify me if prices for flights from London to O'Hare Intl become cheaper?

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Cheapest flights from London to O'Hare Intl
Explore the most affordable flight options available from London to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.