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Cheap flights from Chicago O'Hare Intl Airport to London from £202

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LON
27 Jan — 3 Feb1
1 adult

The best prices from Chicago O'Hare Intl to London are usually found in February or October, booked 40 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from O'Hare Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 January 2025.

Round-trip from

£477

One-way from

£202

Popular in

June

Cheapest in

February

Average price

£566

Good round-trip deal

£557 or less

Good one-way deal

£393 or less
Iberia
  • Iberia
  • 26/2-25/3
  • 1 total stop
  • 18h 52m total
  • Chicago to London
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1/3
  • 1/3
  • 2 total stops
  • 38h 29m total
  • Chicago to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£117 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to London (LON).
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Price to beat on a one-way flight from Chicago O'Hare Intl to London (LON).
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Find flight deals from O'Hare Intl to London

Cheapest flights from O'Hare Intl to London
Explore the most affordable flight options available from O'Hare Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2025.

Wed 26/217:18ORD - LHR
1 stop10h 02mIberia
Wed 26/313:50LHR - ORD
Nonstop8h 50mIberia
Deal found 21/1£477
Sat 1/219:40ORD - LHR
2 stops14h 45mScandinavian Airlines
Sun 9/221:05LHR - ORD
2 stops26h 45mScandinavian Airlines
Deal found 21/1£481
Wed 22/119:15ORD - LHR
1 stop17h 40mTAP AIR PORTUGAL
Fri 31/106:00LHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Deal found 21/1£481
Wed 26/205:15ORD - LGW
2 stops26h 15mMultiple Airlines
Tue 25/312:00LGW - ORD
1 stop23h 36mMultiple Airlines
Deal found 21/1£481
Tue 22/419:30ORD - LGW
1 stop13h 10mIcelandair
Tue 29/415:40LGW - ORD
1 stop32h 40mIcelandair
Deal found 21/1£482
Thu 20/218:30ORD - STN
2 stops16h 10mMultiple Airlines
Thu 27/206:00STN - ORD
2 stops17h 20mMultiple Airlines
Deal found 21/1£483
Fri 4/419:30ORD - LHR
1 stop10h 25mIcelandair
Tue 8/421:25LHR - ORD
1 stop26h 55mIcelandair
Deal found 21/1£485
Sun 9/321:25ORD - LGW
2 stops18h 15mTAP AIR PORTUGAL
Thu 13/310:40LGW - ORD
1 stop34h 50mTAP AIR PORTUGAL
Deal found 21/1£485
Wed 23/417:50ORD - LHR
Nonstop7h 30mFinnair
Thu 1/509:30LHR - ORD
1 stop14h 20mFinnair
Deal found 21/1£486
Wed 5/315:55ORD - LTN
1 stop10h 40mMultiple Airlines
Wed 12/306:50LTN - ORD
1 stop13h 10mMultiple Airlines
Deal found 21/1£488
Mon 22/913:06ORD - LGW
1 stop13h 04mBritish Airways
Tue 7/1015:05LGW - ORD
1 stop23h 39mBritish Airways
Deal found 21/1£500
Wed 26/316:55ORD - LCY
1 stop14h 45mMultiple Airlines
Thu 3/406:45LCY - ORD
1 stop13h 15mMultiple Airlines
Deal found 20/1£507

Find flights from O'Hare Intl to London within your budget

Customise your flight search to find flights from O'Hare Intl to London 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 22 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 26/2

17:18-09:20

1 stop10h 02m

London Heathrow

Tue 25/3

11:55-15:45

Nonstop8h 50m

£477

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sat 1/2

19:40-16:25

2 stops14h 45m

London Heathrow

Sun 9/2

21:05-17:50

2 stops26h 45m

£481

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 26/2

05:15-13:30

2 stops26h 15m

London Gatwick

Tue 25/3

12:00-06:36

1 stop23h 36m

£481

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 22/4

19:30-14:40

1 stop13h 10m

London Gatwick

Tue 29/4

15:40-18:20

1 stop32h 40m

£482

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 20/2

18:30-16:40

2 stops16h 10m

London Stansted

Thu 27/2

06:00-17:20

2 stops17h 20m

£483

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 9/3

21:25-20:40

2 stops18h 15m

London Gatwick

Thu 13/3

10:40-16:30

1 stop34h 50m

£485

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 5/3

15:55-08:35

1 stop10h 40m

London Luton

Wed 12/3

06:50-15:00

1 stop13h 10m

£488

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 7/2

18:30-10:50

1 stop10h 20m

London Heathrow

Wed 12/2

20:40-17:20

1 stop26h 40m

£496

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 7/2

20:20-17:30

1 stop15h 10m

London Heathrow

Wed 12/2

06:00-15:30

1 stop15h 30m

£501

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 4/2

11:35-11:50

2 stops18h 15m

London Heathrow

Tue 18/2

06:50-19:55

2 stops19h 05m

£503

Flights are sorted by cheapest return flights first.

Deals found on 20/1

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

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

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

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

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to London. Price data was last updated on 17 January 2025.

The price you pay for your flight from Chicago O'Hare Intl Airport to London may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London (average of £112). Flying from Chicago O'Hare Intl Airport to London in August is currently the most expensive (average of £161). 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 ORD to LON?

Find hourly flight availability from O'Hare Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 January 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to London in the morning. Doing so could potentially save you 10% on the flight price compared to flying at midday, which is usually more expensive.

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

Explore weekly flight availability from O'Hare Intl to London. 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 22 January 2025.

The most flights from ORD to LON are scheduled on a Monday (38 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (26 on average).

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 22 January 2025.
Read through reviews of airlines operating flights from Chicago to London, such as TAP AIR PORTUGAL, SWISS and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,521 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,521 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LOT
7.6
Good
1,115 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines
7.5
Good
787 reviews
Delta
8.0
Very Good
8,521 reviews
Check prices

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to London. 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 flying from Chicago O'Hare Intl Airport to London round-trip?

    According to our current data, Iberia (£477), Scandinavian Airlines (£481), and Icelandair (£482) offers the cheapest pricing from Chicago O'Hare Intl Airport to London. Users have found that Iberia is 24% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £205. However, be on the lookout for offers from JetBlue and SWISS, as they are both options that can get you from Chicago O'Hare Intl Airport to London for a low price.

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

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

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

    No one likes to see their flight delayed. When booking a flight from Chicago O'Hare Intl Airport to London consider choosing Aer Lingus (70%), Iberia (68%) or American Airlines (66%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to London? While on average our users pay £3,343, our data indicates the cheapest price to be £318. The most popular route (Chicago O'Hare Intl - London Heathrow), is priced around £375.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London (average of £112). Flying from Chicago O'Hare Intl Airport to London in August is currently the most expensive (average of £161). 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
Deal
Hounslow
Gatwick
Croydon
Milton Keynes
Slough
Luton
Ilford
Hayes
Eastbourne
Maidstone
Crawley
Winchester
Southend-on-Sea
Wembley
Ipswich
Watford
Southall
Stansted
Sutton

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Top 7 airlines flying from O'Hare Intl to London

Discover the top 7 airlines that operate flights from O'Hare Intl to London. 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 22 January 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£331Average£881FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£388Average£754FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£417Average£817FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£483Average£705FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£507Average£707FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£536Average£718FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£541Average£718FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

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

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

Need flexible booking options for your flight to London from O'Hare Intl? 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 O'Hare Intl to London become cheaper?

Not ready to book yet? You can track prices for flights from O'Hare Intl to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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