How long is the flight from United Kingdom to Chicago?

Departing from United Kingdom to Chicago will take you 27h 10m. The distance from United Kingdom to Chicago is about 3939 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from United Kingdom to Chicago one-way?

One-way options have recently been found by users for as low as £388 on Virgin Atlantic. Other airlines that offer cheap prices include Delta from £390 and British Airways from £393 one-way.

In terms of precipitation, rainfall in Chicago 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 when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago, 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 United Kingdom to Chicago?

The most popular flight routes from United Kingdom to Chicago are London Heathrow - Chicago O'Hare Intl, London Heathrow - Chicago Midway and London Gatwick - Chicago O'Hare Intl.

What are the cheapest flights from United Kingdom to Chicago?

Looking for the cheapest flight from United Kingdom to Chicago? While on average our users pay £1,144, our data indicates the cheapest price to be £401. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £376.

What are the most reliable airlines from United Kingdom to Chicago?

No one likes to see their flight delayed. When booking a flight from United Kingdom to Chicago consider choosing Malaysia Airlines (80%), Air Canada (79%) or Austrian Airlines (79%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from United Kingdom to Chicago?

When booking a flight from United Kingdom to Chicago, you may want to consider flying on British Airways, Aer Lingus or Icelandair as they are the most popular for this route.

Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?

Yes. In addition to deals on United Kingdom to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from United Kingdom to Chicago?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Chicago.

Can I find deals for business class flights from United Kingdom to Chicago?

Yes. Cheapflights offers flight deals from United Kingdom to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£265+ Cheap Flights from the United Kingdom to Chicago

Find flight deals from United Kingdom to Chicago

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Chicago
Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2025.

Fri 7/1115:35LHR - ORD

2 stops31h 10mScandinavian Airlines

Fri 28/1119:20ORD - LHR

2 stops39h 05mScandinavian Airlines

Deal found 12/10£397

Thu 6/1115:50LGW - ORD

2 stops29h 35mMultiple Airlines

Wed 12/1106:40ORD - LGW

1 stop17h 20mMultiple Airlines

Deal found 13/10£397

Tue 11/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Tue 18/1118:30ORD - LTN

2 stops19h 35mMultiple Airlines

Deal found 12/10£397

Wed 5/1107:05LHR - ORD

2 stops15h 40mScandinavian Airlines

Thu 13/1119:20ORD - LHR

2 stops15h 05mScandinavian Airlines

Deal found 13/10£398

Sat 8/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Wed 12/1118:30ORD - LTN

2 stops22h 35mMultiple Airlines

Deal found 13/10£398

Thu 6/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Thu 13/1118:30ORD - STN

2 stops22h 50mMultiple Airlines

Deal found 13/10£398

Thu 13/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Sun 16/1120:25ORD - LGW

1 stop13h 20mTAP AIR PORTUGAL

Deal found 13/10£399

Thu 30/1006:40LHR - ORD

1 stop17h 05mScandinavian Airlines

Mon 10/1119:20ORD - LHR

1 stop20h 20mScandinavian Airlines

Deal found 13/10£399

Tue 11/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Tue 18/1118:30ORD - STN

2 stops20h 50mMultiple Airlines

Deal found 12/10£399

Thu 6/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Wed 12/1119:10ORD - LGW

1 stop13h 55mTAP AIR PORTUGAL

Deal found 12/10£400

Thu 30/1007:05LHR - ORD

2 stops16h 40mScandinavian Airlines

Sat 8/1119:20ORD - LHR

2 stops18h 35mScandinavian Airlines

Deal found 12/10£400

Fri 31/1019:30LHR - ORD

1 stop27h 15mScandinavian Airlines

Fri 7/1119:20ORD - LHR

1 stop14h 40mScandinavian Airlines

Deal found 13/10£400

Best flights from United Kingdom to Chicago
Discover carefully curated flight deals from United Kingdom to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 October 2025.

Thu 6/1115:50LGW - ORD

2 stops29h 35mMultiple Airlines

Wed 12/1106:40ORD - LGW

1 stop17h 20mMultiple Airlines

Deal found 13/10£397

Thu 13/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Sun 16/1120:25ORD - LGW

1 stop13h 20mTAP AIR PORTUGAL

Deal found 13/10£399

Fri 5/1220:55MAN - ORD

2 stops49h 50mScandinavian Airlines

Sat 10/119:20ORD - MAN

1 stop32h 10mScandinavian Airlines

Deal found 12/10£421

Sat 6/1218:00LHR - ORD

1 stop27h 10mUnited Airlines

Sun 7/1217:50ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 11/10£442

Wed 25/311:55LGW - ORD

1 stop11h 25mIcelandair

Wed 1/419:25ORD - LGW

1 stop13h 15mIcelandair

Deal found 12/10£447

Sun 23/1113:55LHR - ORD

1 stop30h 05mAustrian Airlines

Tue 2/1221:05ORD - LHR

Nonstop8h 10mAustrian Airlines

Deal found 13/10£464

Wed 5/1119:10LCY - ORD

1 stop23h 35mSWISS

Tue 11/1116:10ORD - LCY

1 stop14h 40mSWISS

Deal found 13/10£504

Wed 19/1108:40LHR - MDW

2 stops15h 38mDelta

Wed 26/1109:41MDW - LHR

1 stop15h 24mDelta

Deal found 12/10£519

Mon 10/1111:45LHR - MDW

2 stops17h 55mVirgin Atlantic

Mon 17/1113:15MDW - LHR

2 stops14h 05mVirgin Atlantic

Deal found 13/10£519

Tue 18/1108:55LHR - MDW

1 stop13h 43mKLM

Mon 1/1213:47MDW - LHR

1 stop11h 18mKLM

Deal found 13/10£533

Mon 10/1109:25EDI - ORD

2 stops16h 00mLufthansa

Sun 16/1108:50ORD - EDI

2 stops17h 05mLufthansa

Deal found 13/10£563

Sat 22/1106:00LTN - ORD

2 stops17h 20mMultiple Airlines

Fri 28/1118:30ORD - LTN

2 stops19h 40mMultiple Airlines

Deal found 13/10£398

Wed 3/1212:55MAN - ORD

2 stops33h 50mScandinavian Airlines

Sat 10/119:20ORD - MAN

1 stop32h 10mScandinavian Airlines

Deal found 12/10£421

Sat 8/1108:30STN - ORD

2 stops14h 50mMultiple Airlines

Wed 12/1118:30ORD - STN

2 stops14h 35mMultiple Airlines

Deal found 13/10£398

Tue 24/311:55LGW - ORD

1 stop11h 25mIcelandair

Tue 31/319:25ORD - LGW

1 stop13h 15mIcelandair

Deal found 12/10£447

Mon 10/1109:00LHR - ORD

1 stop13h 20mUnited Airlines

Mon 24/1121:05ORD - LHR

Nonstop8h 10mUnited Airlines

Deal found 13/10£463

Thu 27/1107:05LHR - ORD

2 stops15h 40mScandinavian Airlines

Sat 6/1219:20ORD - LHR

2 stops17h 30mScandinavian Airlines

Deal found 13/10£421

Tue 11/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Tue 18/1118:30ORD - STN

2 stops20h 50mMultiple Airlines

Deal found 12/10£399

Wed 25/311:55LGW - ORD

1 stop11h 25mIcelandair

Mon 30/319:25ORD - LGW

1 stop13h 15mIcelandair

Deal found 12/10£447

Thu 30/1012:55MAN - ORD

2 stops33h 50mScandinavian Airlines

Mon 3/1119:20ORD - MAN

2 stops16h 35mScandinavian Airlines

Deal found 12/10£424

Wed 14/109:00LHR - ORD

1 stop13h 20mUnited Airlines

Thu 22/117:50ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 12/10£466

Mon 10/1119:10LCY - ORD

1 stop23h 35mSWISS

Mon 24/1121:35ORD - LCY

2 stops15h 05mSWISS

Deal found 13/10£518

Tue 25/1108:40LHR - MDW

2 stops15h 28mDelta

Wed 3/1209:34MDW - LHR

2 stops14h 51mDelta

Deal found 12/10£519

Thu 6/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Thu 13/1118:30ORD - LTN

2 stops15h 30mMultiple Airlines

Deal found 13/10£400

Wed 26/1111:05LHR - MDW

1 stop13h 13mVirgin Atlantic

Wed 3/1212:50MDW - LHR

1 stop11h 35mVirgin Atlantic

Deal found 12/10£533

Tue 24/312:15LHR - ORD

1 stop11h 05mIcelandair

Tue 31/319:25ORD - LHR

1 stop10h 30mIcelandair

Deal found 12/10£449

Thu 5/212:55MAN - ORD

2 stops33h 50mScandinavian Airlines

Fri 13/219:20ORD - MAN

1 stop17h 15mScandinavian Airlines

Deal found 12/10£426

Tue 18/1108:40LHR - MDW

2 stops15h 38mDelta

Wed 26/1112:47MDW - LHR

1 stop11h 38mDelta

Deal found 13/10£519

Mon 27/1019:10LCY - ORD

1 stop23h 35mSWISS

Tue 4/1116:10ORD - LCY

1 stop14h 40mSWISS

Deal found 13/10£522

Thu 6/1111:55LGW - ORD

1 stop11h 25mIcelandair

Thu 13/1118:30ORD - LGW

1 stop10h 25mIcelandair

Deal found 13/10£453

Direct flights from United Kingdom to Chicago
Explore direct flight options from United Kingdom to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 October 2025.

Wed 26/1113:35LHR - ORD

Nonstop9h 25mLufthansa

Wed 3/1217:50ORD - LHR

Nonstop8h 05mLufthansa

Deal found 12/10£454

Tue 11/1113:35LHR - ORD

Nonstop9h 25mLufthansa

Tue 18/1121:05ORD - LHR

Nonstop8h 10mLufthansa

Deal found 12/10£463

Wed 12/1107:40LHR - ORD

Nonstop9h 20mLufthansa

Wed 3/1215:45ORD - LHR

Nonstop8h 10mLufthansa

Deal found 13/10£466

Tue 11/1110:25LHR - ORD

Nonstop9h 20mAustrian Airlines

Mon 17/1121:05ORD - LHR

Nonstop8h 10mAustrian Airlines

Deal found 13/10£471

Mon 10/1107:55LHR - ORD

Nonstop9h 20mBrussels Airlines

Mon 24/1117:50ORD - LHR

Nonstop8h 05mBrussels Airlines

Deal found 12/10£472

Wed 19/1110:25LHR - ORD

Nonstop9h 20mAustrian Airlines

Wed 26/1117:50ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 12/10£475

Mon 10/1110:25LHR - ORD

Nonstop9h 20mAustrian Airlines

Mon 24/1121:05ORD - LHR

Nonstop8h 10mAustrian Airlines

Deal found 12/10£475

Mon 17/1110:25LHR - ORD

Nonstop9h 20mMultiple Airlines

Mon 1/1217:50ORD - LHR

Nonstop8h 05mMultiple Airlines

Deal found 13/10£477

Mon 10/1110:25LHR - ORD

Nonstop9h 20mMultiple Airlines

Mon 17/1117:50ORD - LHR

Nonstop8h 05mMultiple Airlines

Deal found 12/10£478

Wed 19/1110:25LHR - ORD

Nonstop9h 20mAustrian Airlines

Tue 2/1221:05ORD - LHR

Nonstop8h 10mAustrian Airlines

Deal found 13/10£478

Mon 17/1107:55LHR - ORD

Nonstop9h 20mAustrian Airlines

Mon 1/1215:45ORD - LHR

Nonstop8h 10mAustrian Airlines

Deal found 13/10£479

Mon 19/110:25LHR - ORD

Nonstop9h 20mLufthansa

Mon 26/121:05ORD - LHR

Nonstop8h 10mLufthansa

Deal found 12/10£480

Last-minute flights from United Kingdom to Chicago
Discover last-minute flight deals from United Kingdom to Chicago. Data last updated 14 October 2025 and is based on user searches.

Thu 6/1115:50LGW - ORD

2 stops29h 35mMultiple Airlines

Wed 12/1106:40ORD - LGW

1 stop17h 20mMultiple Airlines

Deal found 13/10£397

Thu 6/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Thu 13/1118:30ORD - STN

2 stops22h 50mMultiple Airlines

Deal found 13/10£398

Thu 6/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Wed 12/1119:10ORD - LGW

1 stop13h 55mTAP AIR PORTUGAL

Deal found 12/10£400

Thu 6/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Thu 13/1118:30ORD - LTN

2 stops15h 30mMultiple Airlines

Deal found 13/10£400

Thu 6/1116:05LGW - ORD

2 stops29h 20mMultiple Airlines

Tue 11/1106:40ORD - LGW

1 stop17h 20mMultiple Airlines

Deal found 13/10£403

Sat 8/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Wed 12/1118:30ORD - LTN

2 stops22h 35mMultiple Airlines

Deal found 13/10£398

Tue 11/1109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Tue 18/1118:30ORD - LTN

2 stops19h 35mMultiple Airlines

Deal found 12/10£397

Tue 11/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Tue 18/1118:30ORD - STN

2 stops20h 50mMultiple Airlines

Deal found 12/10£399

Wed 12/1114:25LGW - ORD

2 stops32h 20mMultiple Airlines

Wed 19/1119:20ORD - LGW

2 stops19h 45mMultiple Airlines

Deal found 13/10£408

Thu 13/1116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Sun 16/1120:25ORD - LGW

1 stop13h 20mTAP AIR PORTUGAL

Deal found 13/10£399

Sat 22/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Fri 28/1118:30ORD - STN

2 stops20h 50mMultiple Airlines

Deal found 13/10£404

Sat 22/1116:35LGW - ORD

1 stop28h 10mTAP AIR PORTUGAL

Fri 28/1120:15ORD - LGW

1 stop31h 35mTAP AIR PORTUGAL

Deal found 13/10£405

One-way flights from United Kingdom to Chicago
Search for one-way flight options from United Kingdom to Chicago. Find affordable one-way fares based on user searches. Data last updated 14 October 2025.

Tue 10/206:00EDI - ORD

2 stops31h 13mMultiple Airlines

Deal found 13/10£265

Mon 10/1122:30EDI - ORD

2 stops46h 30mMultiple Airlines

Deal found 12/10£266

Fri 7/1117:45MAN - ORD

2 stops51h 00mMultiple Airlines

Deal found 13/10£307

Thu 30/1013:30MAN - ORD

2 stops54h 15mMultiple Airlines

Deal found 13/10£316

Tue 28/1006:25EDI - ORD

2 stops56h 48mMultiple Airlines

Deal found 12/10£328

Tue 6/106:25EDI - ORD

2 stops54h 48mMultiple Airlines

Deal found 12/10£337

Thu 30/1015:50EDI - ORD

2 stops57h 27mMultiple Airlines

Deal found 12/10£340

Wed 25/212:30MAN - ORD

2 stops32h 00mMultiple Airlines

Deal found 13/10£345

Tue 6/106:20MAN - ORD

2 stops38h 40mMultiple Airlines

Deal found 13/10£353

Fri 7/1107:05MAN - MDW

3 stops21h 15mMultiple Airlines

Deal found 13/10£356

Fri 31/1006:35EDI - ORD

2 stops42h 42mMultiple Airlines

Deal found 12/10£359

Sat 1/1116:25EDI - ORD

2 stops28h 20mMultiple Airlines

Deal found 12/10£364

Cheap flight deals from United Kingdom to Chicago

Round-trip from	£397
One-way from	£265
Popular in	July
Cheapest in	February
Average price	£540
Good round-trip deal	£496 or less
Good one-way deal	£471 or less

Scandinavian Airlines
7/11-28/11
4 total stops
70h 15m total
United Kingdom to Chicago

Search Deals

10/2
2 total stops
31h 13m total
United Kingdom to Chicago

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£62 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£10 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 United Kingdom to Chicago (CHI).

Search Deals

Price to beat on a one-way flight from United Kingdom to Chicago (CHI).

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 6/11

15:50-15:25

2 stops29h 35m

Chicago O'Hare Intl

Wed 12/11

06:40-06:00

1 stop17h 20m

£397

LondonChicago

LTN - ORD

LTNORD

London Luton

Sat 22/11

06:00-17:20

2 stops17h 20m

Chicago O'Hare Intl

Fri 28/11

18:30-20:10

2 stops19h 40m

£398

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

£398

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

£399

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 11/11

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

Tue 18/11

18:30-21:20

2 stops20h 50m

£399

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

£400

ManchesterChicago

MAN - ORD

MANORD

Manchester

Fri 5/12

20:55-16:45

2 stops49h 50m

Chicago O'Hare Intl

Sat 10/1

19:20-09:30

1 stop32h 10m

£421

ManchesterChicago

MAN - ORD

MANORD

Manchester

Wed 3/12

12:55-16:45

2 stops33h 50m

Chicago O'Hare Intl

Sat 10/1

19:20-09:30

1 stop32h 10m

£421

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 27/11

07:05-16:45

2 stops15h 40m

Chicago O'Hare Intl

Sat 6/12

19:20-18:50

2 stops17h 30m

£421

ManchesterChicago

MAN - ORD

MANORD

Manchester

Thu 30/10

12:55-17:45

2 stops33h 50m

Chicago O'Hare Intl

Mon 3/11

19:20-17:55

2 stops16h 35m

£424

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 60 results

...

Best time to book a flight from United Kingdom to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from United Kingdom 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 the United Kingdom to Chicago

What is the cheapest month to book a flight from United Kingdom to Chicago?

Currently, September is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of £153). Flying from United Kingdom to Chicago in July is currently the most expensive (average of £469). 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 GB to CHI?

It’s typically best to fly out from United Kingdom to Chicago in the afternoon. Doing so could potentially save you 14% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from United Kingdom to Chicago?

Travellers seeking maximum savings on their United Kingdom to Chicago 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 United Kingdom to Chicago

The most flights from GB0 to CHI are scheduled on a Saturday (54 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (47 on average).

Reviews of airlines servicing Chicago

Read reviews from past customers who have flown with Finnair, Aer Lingus, andIcelandair from the United Kingdom to Chicago. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Finnair

7.6

Good

1,332 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Aer Lingus

7.2

Good

1,336 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Icelandair

7.0

Good

556 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Lufthansa

6.8

Okay

7,484 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

British Airways

6.7

Okay

7,454 reviews

Finnair

7.6

Good

1,332 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Related info for your journey

How long is the flight from United Kingdom to Chicago?
Departing from United Kingdom to Chicago will take you 27h 10m. The distance from United Kingdom to Chicago is about 3939 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from United Kingdom to Chicago one-way?
One-way options have recently been found by users for as low as £388 on Virgin Atlantic. Other airlines that offer cheap prices include Delta from £390 and British Airways from £393 one-way.
What are the most popular routes from United Kingdom to Chicago?
The most popular flight routes from United Kingdom to Chicago are London Heathrow - Chicago O'Hare Intl, London Heathrow - Chicago Midway and London Gatwick - Chicago O'Hare Intl.
What are the most reliable airlines from United Kingdom to Chicago?
No one likes to see their flight delayed. When booking a flight from United Kingdom to Chicago consider choosing Malaysia Airlines (80%), Air Canada (79%) or Austrian Airlines (79%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from United Kingdom to Chicago?
Looking for the cheapest flight from United Kingdom to Chicago? While on average our users pay £1,144, our data indicates the cheapest price to be £401. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £376.
Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?
Yes. In addition to deals on United Kingdom to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from United Kingdom to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Chicago.
Can I find deals for business class flights from United Kingdom to Chicago?
Yes. Cheapflights offers flight deals from United Kingdom to Chicago 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 United Kingdom to Chicago?
Currently, September is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of £153). Flying from United Kingdom to Chicago in July is currently the most expensive (average of £469). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for United Kingdom to Chicago

Heathrow to O'Hare Intl flights

Gatwick to O'Hare Intl flights

Heathrow to Midway flights

London City to O'Hare Intl flights

Stansted to O'Hare Intl flights

Luton to O'Hare Intl flights

Heathrow to St. Louis flights

Bruxelles-National to O'Hare Intl flights

Gatwick to Midway flights

Manchester to O'Hare Intl flights

Manchester to Midway flights

Gatwick to St. Louis flights

Istanbul to O'Hare Intl flights

London City to St. Louis flights

Edinburgh to O'Hare Intl flights

London City to Midway flights

Newcastle upon Tyne to O'Hare Intl flights

Glasgow Intl to O'Hare Intl flights

Edinburgh to Midway flights

Stansted to St. Louis flights

Newcastle upon Tyne to Midway flights

Birmingham to O'Hare Intl flights

Glasgow Intl to Midway flights

Belfast Intl to O'Hare Intl flights

Manchester to St. Louis flights

Luton to St. Louis flights

Leeds to O'Hare Intl flights

Grimsby to O'Hare Intl flights

Belfast City to O'Hare Intl flights

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Other flights to Chicago

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Top 10 airlines flying from United Kingdom to Chicago

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£314	Average£558	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£329	Average£673	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Virgin Atlantic	Cheapest£347	Average£602	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Scandinavian Airlines	Cheapest£359	Average£474	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest£371	Average£621	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
British Airways	Cheapest£381	Average£554	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Brussels Airlines	Cheapest£388	Average£545	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Lufthansa	Cheapest£399	Average£628	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Austrian Airlines	Cheapest£404	Average£593	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
United Airlines	Cheapest£411	Average£610	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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Cheap flights from the United Kingdom to Chicago from £265

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find flight deals from United Kingdom to Chicago

Cheapest flights from United Kingdom to ChicagoExplore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2025.

Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2025.

Cheap flight deals from United Kingdom to Chicago

Keep the following information in mind while searching for United Kingdom to Chicago flight deals. Data was last updated 14 October 2025.

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Best time to book a flight from United Kingdom to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from United Kingdom with our price prediction graph.

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Everything you need to know about your flight from the United Kingdom to Chicago

What is the cheapest month to book a flight from United Kingdom to Chicago?

What is the cheapest time of day to fly from GB to CHI?

Find hourly flight availability from United Kingdom to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 October 2025.

What is the cheapest day to fly from United Kingdom to Chicago?

Use this chart to determine the cheapest time to fly return from United Kingdom to Chicago. Price data was last updated on 3 November 2024.

Weekly flight availability from United Kingdom to Chicago

Reviews of airlines servicing Chicago

Read reviews from past customers who have flown with Finnair, Aer Lingus, andIcelandair from the United Kingdom to Chicago. Users can see the overall rating for each airline as well as how each is rated 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 United Kingdom to Chicago. 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 United Kingdom to Chicago?

What are the cheapest airlines to fly from United Kingdom to Chicago one-way?

What are the most popular routes from United Kingdom to Chicago?

What are the most reliable airlines from United Kingdom to Chicago?

What are the cheapest flights from United Kingdom to Chicago?

Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?

How can I find direct flights from United Kingdom to Chicago?

Can I find deals for business class flights from United Kingdom to Chicago?

What is the cheapest month to book a flight from United Kingdom to Chicago?

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Alternative routes for United Kingdom to Chicago

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from United Kingdom to Chicago

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How does Cheapflights help users find flights from United Kingdom to Chicago?

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Chicago?

Can Cheapflights find flights from United Kingdom to Chicago with no change fees?

Can Cheapflights notify me if prices for flights from United Kingdom to Chicago become cheaper?

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Cheapest flights from United Kingdom to Chicago
Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 October 2025.