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Cheap flights from the United Kingdom to Chicago O'Hare Intl Airport from £270

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ORD
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from United Kingdom to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to O'Hare Intl
Explore the most affordable flight options available from United Kingdom to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 November 2025.

Wed 3/1207:45GLA - ORD
2 stops15h 35mMultiple Airlines
Sun 7/1218:30ORD - GLA
2 stops22h 40mMultiple Airlines
Deal found 17/11£403
Tue 25/1108:50LGW - ORD
2 stops14h 30mMultiple Airlines
Sun 7/1218:30ORD - LGW
2 stops20h 25mMultiple Airlines
Deal found 15/11£417
Wed 3/1208:30STN - ORD
1 stop15h 25mMultiple Airlines
Mon 8/1215:50ORD - STN
1 stop12h 00mMultiple Airlines
Deal found 16/11£419
Wed 3/1211:55LGW - ORD
1 stop11h 25mIcelandair
Wed 10/1218:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 17/11£420
Wed 3/1220:55STN - ORD
2 stops27h 00mMultiple Airlines
Wed 10/1215:50ORD - STN
2 stops23h 05mMultiple Airlines
Deal found 17/11£420
Wed 3/1212:15LHR - ORD
1 stop11h 05mIcelandair
Wed 10/1218:30ORD - LHR
1 stop10h 20mIcelandair
Deal found 17/11£421
Thu 25/1210:10MAN - ORD
1 stop12h 35mScandinavian Airlines
Wed 31/1219:20ORD - MAN
1 stop17h 15mScandinavian Airlines
Deal found 16/11£421
Wed 26/1112:15LHR - ORD
1 stop11h 05mIcelandair
Wed 10/1218:30ORD - LHR
1 stop10h 20mIcelandair
Deal found 16/11£422
Tue 9/1212:15LHR - ORD
1 stop11h 05mIcelandair
Tue 16/1218:30ORD - LHR
1 stop19h 00mIcelandair
Deal found 16/11£423
Tue 9/1211:55LGW - ORD
1 stop11h 25mIcelandair
Thu 8/118:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 17/11£424
Tue 2/1220:35LHR - ORD
1 stop26h 45mIcelandair
Tue 9/1218:30ORD - LHR
1 stop19h 00mIcelandair
Deal found 17/11£424
Tue 25/1106:30STN - ORD
1 stop13h 30mMultiple Airlines
Sun 7/1215:50ORD - STN
1 stop12h 00mMultiple Airlines
Deal found 15/11£424

Cheap flight deals from United Kingdom to O'Hare Intl

Keep the following information in mind while searching for United Kingdom to O'Hare Intl flight deals. Data was last updated 18 November 2025.

Round-trip from

£392

One-way from

£270

Popular in

July

Cheapest in

February

Average price

£470

Good round-trip deal

£579 or less

Good one-way deal

£457 or less
Icelandair
  • Icelandair
  • 17/4-24/4
  • 2 total stops
  • 21h 55m total
  • United Kingdom to Chicago
Search Deals
12/12
  • 12/12
  • 3 total stops
  • 39h 12m total
  • United Kingdom to Chicago
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£61 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 November 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from United Kingdom to Chicago O'Hare Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 November 2025.
Use the filters below to find and compare flights from the United Kingdom to Chicago O'Hare Intl Airport that are best for you.

Fly from

United Kingdom

Fly to

O'Hare Intl

Route

Depart

Return

Price

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 17/4

14:20-21:40

1 stop13h 20m

Chicago O'Hare Intl

Fri 24/4

19:25-13:25

1 stop12h 00m

£393

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 26/2

12:35-17:20

1 stop10h 45m

Chicago O'Hare Intl

Mon 2/3

18:30-09:55

1 stop9h 25m

£400

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Wed 3/12

07:45-17:20

2 stops15h 35m

Chicago O'Hare Intl

Sun 7/12

18:30-23:10

2 stops22h 40m

£403

BirminghamChicago

BHX - ORD

BHXORD

Birmingham

Wed 21/1

19:10-16:45

1 stop27h 35m

Chicago O'Hare Intl

Sun 25/1

19:10-18:30

1 stop17h 20m

£413

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 25/1

10:20-16:55

1 stop12h 35m

Chicago O'Hare Intl

Mon 9/2

19:20-16:25

2 stops15h 05m

£416

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 30/1

10:20-16:45

1 stop12h 25m

Chicago O'Hare Intl

Sat 7/2

19:20-16:25

2 stops15h 05m

£416

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 3/12

08:30-17:55

1 stop15h 25m

Chicago O'Hare Intl

Mon 8/12

15:50-09:50

1 stop12h 00m

£419

ManchesterChicago

MAN - ORD

MANORD

Manchester

Mon 12/1

20:45-16:45

2 stops50h 00m

Chicago O'Hare Intl

Thu 22/1

19:20-09:30

1 stop32h 10m

£419

ManchesterChicago

MAN - ORD

MANORD

Manchester

Tue 13/1

19:15-16:45

1 stop27h 30m

Chicago O'Hare Intl

Thu 22/1

19:20-12:15

2 stops34h 55m

£419

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 3/12

20:55-17:55

2 stops27h 00m

Chicago O'Hare Intl

Wed 10/12

15:50-20:55

2 stops23h 05m

£420

Flights are sorted by cheapest return flights first.

Deals found on 16/11

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 O'Hare Intl Airport

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

Currently, September is the cheapest month in which you can book a flight from United Kingdom to Chicago O'Hare Intl Airport (average of £155). Flying from United Kingdom to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £476). 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 ORD?

Find hourly flight availability from United Kingdom 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 18 November 2025.

One of the essential ways to save on airfare from United Kingdom to Chicago O'Hare Intl Airport is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 3% on airfare.

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

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

Travellers seeking maximum savings on their United Kingdom 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 United Kingdom to Chicago O'Hare Intl Airport

Explore weekly flight availability from United Kingdom 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 18 November 2025.

The most flights from GB0 to ORD are scheduled on a Monday (42 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (31 on average).

How often are flights $[0, preposition:'from ']$[0, article:'from ']$[0, place:'from'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] delayed?

About 11% of weekly flights between $[0, place:'genitive'] and $[1, place:'genitive'] have experienced delays in the past year, with the average delay time being 168 minutes.

What is the most punctual flight time for $[0,article:'genitive ']$[0,place:'genitive'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

Which airline has the best punctuality record on $[0,article:'genitive ']$[0,place:'genitive'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 5% of flights being delayed.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated 18 November 2025.
Get a feel of what it's like to fly with Finnair, Aer Lingus, andIcelandair from the United Kingdom 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
1,334 reviews
Check prices

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

Entertainment

6.9

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
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

Entertainment

6.9

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.
Aer Lingus
7.2
Good
1,373 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

Entertainment

6.9

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.
Icelandair
7.0
Good
580 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

Entertainment

6.9

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.
Lufthansa
6.8
Okay
7,576 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

Entertainment

6.9

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.
British Airways
6.7
Okay
7,529 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

Entertainment

6.9

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.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom to Chicago O'Hare Intl Airport?

    There are many flights that can get you from United Kingdom to Chicago O'Hare Intl Airport in 13h 20m. Fly via Icelandair, Scandinavian Airlines, or Aer Lingus to get the fastest option. Airlines will cover a distance of 3663 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as £406. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from United Kingdom to Chicago O'Hare Intl Airport for a low price.

  • What are the most popular routes from United Kingdom to Chicago O'Hare Intl Airport?

    Most travelers choose London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl or London City - Chicago O'Hare Intl when deciding on the best route from United Kingdom to Chicago O'Hare Intl Airport.

  • What are the most reliable airlines from United Kingdom to Chicago O'Hare Intl Airport?

    No one likes to see their flight delayed. When booking a flight from United Kingdom to Chicago O'Hare Intl Airport consider choosing Air Canada (86%), Austrian Airlines (86%) or United Airlines (86%) 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 O'Hare Intl Airport?

    While on average a flight from United Kingdom to Chicago O'Hare Intl Airport is generally £1,293, our data shows the cheapest flight currently is £370. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £324 for that flight.

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

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

  • How can I find direct flights from United Kingdom 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 United Kingdom to O'Hare Intl.

  • Can I find deals for business class flights from United Kingdom to O'Hare Intl?

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Chicago O'Hare Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from United Kingdom to Chicago O'Hare Intl Airport (average of £155). Flying from United Kingdom to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £476). 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Downers Grove
Elk Grove Village

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Alternative routes for United Kingdom to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
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
Gatwick to Midway flights
Bruxelles-National to O'Hare Intl flights
Manchester to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Manchester to Midway flights
Edinburgh to O'Hare Intl flights
Birmingham to O'Hare Intl flights
Edinburgh to Midway flights
London City to Midway flights
Dublin to O'Hare Intl flights
Birmingham to Midway flights
Glasgow Intl to O'Hare Intl flights
Leeds to O'Hare Intl flights
Southend to O'Hare Intl flights
Leeds to Midway flights
Newcastle upon Tyne to O'Hare Intl flights
Liverpool to O'Hare Intl flights
Glasgow Intl to Midway flights
Belfast Intl to O'Hare Intl flights
Belfast City to O'Hare Intl flights
Exeter to O'Hare Intl flights
Inverness to O'Hare Intl flights
Southampton to O'Hare Intl flights
Bristol to Midway flights
Newcastle upon Tyne to Midway flights
Darlington to Midway flights
Southampton to Midway flights
Bristol to O'Hare Intl flights
Cardiff to O'Hare Intl flights
Cardiff to Midway flights
Barcelona-El Prat to O'Hare Intl flights
Norwich to O'Hare Intl flights
Newquay to O'Hare Intl flights
Grimsby to O'Hare Intl flights
Darlington to O'Hare Intl flights
Vienna to O'Hare Intl flights
Frederic Chopin to O'Hare Intl flights
Madrid to O'Hare Intl flights

Top 10 airlines flying from United Kingdom to O'Hare Intl

Discover the top 10 airlines that operate flights from United Kingdom to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 November 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£320Average£567FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£352Average£613FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£367Average£476FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£376Average£628FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Aer LingusCheapest£377Average£698FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£386Average£560FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£394Average£551FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
LufthansaCheapest£404Average£637FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£412Average£614FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
United AirlinesCheapest£416Average£618FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from United Kingdom to O'Hare Intl?

When you search for this flight from United Kingdom to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to O'Hare Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to O'Hare Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from United Kingdom to O'Hare Intl with no change fees?

Need flexible booking options for your flight to O'Hare Intl from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on United Kingdom to O'Hare Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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