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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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ORD
14 Jul — 21 Jul1
1 adult

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 9 July 2025.

Round-trip from

£407

One-way from

£270

Popular in

August

Cheapest in

February

Average price

£647

Good round-trip deal

£540 or less

Good one-way deal

£597 or less
Lufthansa
  • Lufthansa
  • 4/9-12/10
  • 1 total stop
  • 31h 10m total
  • United Kingdom to Chicago
25/8
  • 25/8
  • 3 total stops
  • 54h 17m total
  • United Kingdom to Chicago
Highest demand for flights based on searches. 12% potential increase in price (£53 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from United Kingdom to Chicago O'Hare Intl.
Price to beat on a one-way flight from United Kingdom to Chicago O'Hare Intl.

Find flight deals from United Kingdom to O'Hare Intl

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 9 July 2025.

Thu 4/920:05LHR - ORD
1 stop22h 50mMultiple Airlines
Sun 12/1016:00ORD - LHR
Nonstop8h 20mMultiple Airlines
Deal found 8/7£407
Fri 22/808:00LHR - ORD
1 stop14h 10mTAP AIR PORTUGAL
Fri 5/918:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Deal found 7/7£408
Thu 21/810:35LGW - ORD
1 stop35h 35mTAP AIR PORTUGAL
Sat 13/918:15ORD - LGW
1 stop33h 30mTAP AIR PORTUGAL
Deal found 7/7£409
Tue 2/1217:30LHR - ORD
2 stops29h 15mScandinavian Airlines
Mon 12/119:20ORD - LHR
1 stop14h 40mScandinavian Airlines
Deal found 8/7£409
Thu 7/815:40LGW - ORD
1 stop11h 35mIcelandair
Thu 14/822:15ORD - LGW
1 stop31h 30mIcelandair
Deal found 8/7£410
Mon 15/913:30LHR - ORD
1 stop12h 25mLufthansa
Mon 29/916:00ORD - LHR
Nonstop8h 20mLufthansa
Deal found 8/7£412
Wed 20/809:50LHR - ORD
1 stop11h 55mBritish Airways
Sun 14/921:15ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 8/7£412
Thu 16/1007:35STN - ORD
2 stops16h 40mMultiple Airlines
Thu 23/1019:25ORD - STN
2 stops16h 00mMultiple Airlines
Deal found 7/7£414
Thu 28/814:00LGW - ORD
1 stop14h 22mMultiple Airlines
Sat 6/919:25ORD - LGW
2 stops14h 20mMultiple Airlines
Deal found 8/7£415
Wed 10/908:40LHR - ORD
1 stop13h 15mSWISS
Mon 15/919:05ORD - LHR
1 stop16h 45mSWISS
Deal found 8/7£420
Sun 7/919:30LHR - ORD
1 stop23h 50mAustrian Airlines
Wed 17/918:00ORD - LHR
Nonstop8h 20mAustrian Airlines
Deal found 8/7£421
Sat 6/907:25LHR - ORD
1 stop12h 40mUnited Airlines
Thu 11/916:00ORD - LHR
Nonstop8h 20mUnited Airlines
Deal found 7/7£422

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 9 July 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

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 4/9

20:05-12:55

1 stop22h 50m

Chicago O'Hare Intl

Sun 12/10

16:00-06:20

Nonstop8h 20m

£407

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 22/8

08:00-16:10

1 stop14h 10m

Chicago O'Hare Intl

Fri 5/9

18:00-12:45

1 stop12h 45m

£408

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 2/12

17:30-16:45

2 stops29h 15m

Chicago O'Hare Intl

Mon 12/1

19:20-16:00

1 stop14h 40m

£409

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 21/8

10:35-16:10

1 stop35h 35m

Chicago O'Hare Intl

Sat 13/9

18:15-09:45

1 stop33h 30m

£409

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 7/8

15:40-21:15

1 stop11h 35m

Chicago O'Hare Intl

Thu 14/8

22:15-11:45

1 stop31h 30m

£410

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 15/9

13:30-19:55

1 stop12h 25m

Chicago O'Hare Intl

Mon 29/9

16:00-06:20

Nonstop8h 20m

£412

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 20/8

09:50-15:45

1 stop11h 55m

Chicago O'Hare Intl

Sun 14/9

21:15-11:05

Nonstop7h 50m

£412

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 16/10

07:35-18:15

2 stops16h 40m

Chicago O'Hare Intl

Thu 23/10

19:25-17:25

2 stops16h 00m

£414

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 28/8

14:00-22:22

1 stop14h 22m

Chicago O'Hare Intl

Sat 6/9

19:25-15:45

2 stops14h 20m

£415

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 10/9

08:40-15:55

1 stop13h 15m

Chicago O'Hare Intl

Mon 15/9

19:05-17:50

1 stop16h 45m

£420

Flights are sorted by cheapest return flights first.

Deals found on 6/7

Showing 1-10 of 60 results
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6

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, January is the cheapest month in which you can book a flight from United Kingdom to Chicago O'Hare Intl Airport (average of £595). Flying from United Kingdom to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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 9 July 2025.

When flying from United Kingdom to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 9 July 2025.

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

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 9 July 2025.
Get a feel of what it's like to fly with Delta, KLM, andAustrian Airlines 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.

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as £392. However, be on the lookout for offers from Aer Lingus and Icelandair, 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?

  • 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 (89%), Austrian Airlines (89%) or United Airlines (89%) 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 £1,824, our data shows the cheapest flight currently is £401. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £353 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, January is the cheapest month in which you can book a flight from United Kingdom to Chicago O'Hare Intl Airport (average of £595). Flying from United Kingdom to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). 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 the United Kingdom?

Book flights to the United Kingdom if you plan to visit one of these locations
Downers Grove
Elk Grove Village
Rosemont

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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 9 July 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£310Average£549FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£323Average£631FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air FranceCheapest£333Average£604FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£349Average£478FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£363Average£608FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£374Average£543FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£381Average£598FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Brussels AirlinesCheapest£389Average£599FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
LufthansaCheapest£394Average£614FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£396Average£574FlexibilityNo cancel feeOn-time78%
Search Austrian 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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