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Cheap flights from the United Kingdom to Chicago O'Hare Intl Airport from £258

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ORD
26 2월 — 5 3월1
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 21 2월 2025.

Round-trip from

£410

One-way from

£258

Popular in

August

Cheapest in

February

Average price

£459

Good round-trip deal

£552 or less

Good one-way deal

£570 or less
British Airways
  • British Airways
  • 29/4-7/5
  • 2 total stops
  • 23h 50m total
  • United Kingdom to Chicago
Search Deals
18/3
  • 18/3
  • 3 total stops
  • 51h 40m total
  • United Kingdom to Chicago
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£61 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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.
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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 21 2월 2025.

화 29/409:15GLA - ORD
1 stop12h 40mBritish Airways
수 7/522:25ORD - GLA
1 stop11h 10mBritish Airways
Deal found 20/2£410
수 23/406:00LHR - ORD
1 stop12h 10mMultiple Airlines
화 29/416:05ORD - LHR
Nonstop8h 15mMultiple Airlines
Deal found 20/2£417
금 7/307:40LHR - ORD
1 stop12h 30mUnited Airlines
수 12/312:48ORD - LHR
1 stop12h 07mUnited Airlines
Deal found 20/2£418
화 25/220:40LHR - ORD
1 stop26h 40mIcelandair
월 3/318:30ORD - LHR
1 stop19h 00mIcelandair
Deal found 20/2£421
목 6/314:00LGW - ORD
1 stop15h 28mMultiple Airlines
화 25/321:01ORD - LGW
2 stops30h 04mMultiple Airlines
Deal found 20/2£421
금 21/206:00LHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
금 28/220:20ORD - LHR
1 stop16h 35mTAP AIR PORTUGAL
Deal found 20/2£423
목 6/306:00LHR - ORD
1 stop12h 55mSWISS
화 18/320:05ORD - LHR
1 stop11h 55mSWISS
Deal found 20/2£425
토 1/314:10LHR - ORD
Nonstop8h 50mBritish Airways
화 18/321:15ORD - LHR
Nonstop7h 45mBritish Airways
Deal found 20/2£425
목 27/214:30LHR - ORD
1 stop13h 36mLufthansa
수 2/421:20ORD - LHR
Nonstop8h 25mLufthansa
Deal found 20/2£430
수 26/211:55LHR - ORD
Nonstop8h 50mFinnair
수 5/316:16ORD - LHR
1 stop10h 19mFinnair
Deal found 19/2£431
목 27/215:55LGW - ORD
1 stop29h 35mTAP AIR PORTUGAL
수 2/418:00ORD - LGW
1 stop14h 00mTAP AIR PORTUGAL
Deal found 20/2£432
목 6/318:40LGW - ORD
1 stop27h 35mSWISS
월 10/317:55ORD - LGW
2 stops18h 55mSWISS
Deal found 20/2£435

Find flights from United Kingdom to O'Hare Intl within your budget

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 21 2월 2025.

Fly from

United Kingdom

Fly to

O'Hare Intl

Route

Depart

Return

Price

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

화 29/4

09:15-15:55

1 stop12h 40m

Chicago O'Hare Intl

수 7/5

22:25-15:35

1 stop11h 10m

£410

LondonChicago

LHR - ORD

LHRORD

London Heathrow

수 23/4

06:00-12:10

1 stop12h 10m

Chicago O'Hare Intl

화 29/4

16:05-06:20

Nonstop8h 15m

£417

LondonChicago

LHR - ORD

LHRORD

London Heathrow

금 7/3

07:40-14:10

1 stop12h 30m

Chicago O'Hare Intl

수 12/3

12:48-05:55

1 stop12h 07m

£418

LondonChicago

LGW - ORD

LGWORD

London Gatwick

목 6/3

14:00-23:28

1 stop15h 28m

Chicago O'Hare Intl

화 25/3

21:01-08:05

2 stops30h 04m

£421

LondonChicago

LHR - ORD

LHRORD

London Heathrow

토 8/3

07:40-14:10

1 stop12h 30m

Chicago O'Hare Intl

수 12/3

16:15-08:45

1 stop11h 30m

£423

LondonChicago

LHR - ORD

LHRORD

London Heathrow

목 6/3

06:00-12:55

1 stop12h 55m

Chicago O'Hare Intl

화 18/3

20:05-13:00

1 stop11h 55m

£425

LondonChicago

LHR - ORD

LHRORD

London Heathrow

수 12/3

10:25-14:50

Nonstop9h 25m

Chicago O'Hare Intl

수 26/3

18:50-07:55

Nonstop8h 05m

£425

LondonChicago

LHR - ORD

LHRORD

London Heathrow

수 5/3

11:55-14:45

Nonstop8h 50m

Chicago O'Hare Intl

일 9/3

21:15-10:00

Nonstop7h 45m

£427

LondonChicago

LHR - ORD

LHRORD

London Heathrow

수 23/4

11:05-13:50

Nonstop8h 45m

Chicago O'Hare Intl

화 29/4

16:55-06:50

Nonstop7h 55m

£429

LondonChicago

LHR - ORD

LHRORD

London Heathrow

수 7/5

13:05-21:15

1 stop14h 10m

Chicago O'Hare Intl

수 8/10

19:25-11:55

1 stop10h 30m

£430

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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.

Travel insights for flights from United Kingdom to O'Hare Intl

Get recent, data-driven insights about flights from United Kingdom to O'Hare Intl including ideal travel times, pricing trends, and more.

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 21 2월 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 21 2월 2025.

The most flights from GB0 to ORD are scheduled on a Wednesday (38 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (33 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

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.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

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).

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 21 2월 2025.
See what other customers who have flown with Delta, KLM and LOT from United Kingdom to Chicago have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,212 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

LOT
7.6
Good
1,080 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines
7.6
Good
773 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 WestJet, with whom users have recently found tickets for as low as £356. However, be on the lookout for offers from Icelandair and Aer Lingus, 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 (91%), Austrian Airlines (91%) or United Airlines (91%) 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 £1,146, our data shows the cheapest flight currently is £438. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £350 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

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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
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Heathrow to Midway flights
London City to O'Hare Intl flights
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Barcelona-El Prat to O'Hare Intl flights
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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 21 2월 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£332Average£545FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£348Average£624FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air FranceCheapest£358Average£495FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£376Average£513FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£388Average£585FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£403Average£638FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£417Average£629FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Austrian AirlinesCheapest£434Average£599FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
LufthansaCheapest£437Average£674FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£440Average£657FlexibilityNo 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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