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Cheap flights from Chicago O'Hare Intl Airport to London Heathrow Airport from £206

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 24/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LHR
22 Jan — 29 Jan1
1 adult

The best prices from Chicago O'Hare Intl to London Heathrow are usually found in February or October, booked 89 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from O'Hare Intl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Heathrow (LHR). 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 17 January 2025.

Round-trip from

£488

One-way from

£206

Popular in

June

Cheapest in

February

Average price

£597
Iberia
  • Iberia
  • 17/2-5/3
  • Nonstop
  • 16h 25m total
  • Chicago to London
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Icelandair
  • Icelandair
  • 24/2
  • 1 total stop
  • 19h 00m total
  • Chicago to London
Search Deals
High demand for flights, 19% potential price rise
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Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in January 2025
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Find flight deals from O'Hare Intl to Heathrow

Cheapest flights from O'Hare Intl to Heathrow
Explore the most affordable flight options available from O'Hare Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Mon 17/220:25ORD - LHR
Nonstop7h 35mIberia
Wed 5/314:10LHR - ORD
Nonstop8h 50mIberia
Deal found 16/1£488
Sat 1/219:40ORD - LHR
2 stops17h 10mScandinavian Airlines
Sun 9/215:35LHR - ORD
2 stops32h 15mScandinavian Airlines
Deal found 16/1£493
Sun 2/318:30ORD - LHR
1 stop10h 20mIcelandair
Thu 6/312:15LHR - ORD
1 stop11h 05mIcelandair
Deal found 16/1£498
Sun 26/117:00ORD - LHR
Nonstop7h 50mFinnair
Tue 4/211:00LHR - ORD
Nonstop8h 55mFinnair
Deal found 16/1£502
Tue 4/217:06ORD - LHR
3 stops31h 24mMultiple Airlines
Tue 18/206:50LHR - ORD
3 stops20h 43mMultiple Airlines
Deal found 16/1£506
Wed 30/418:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Sat 3/508:00LHR - ORD
1 stop14h 10mTAP AIR PORTUGAL
Deal found 16/1£510
Wed 12/318:35ORD - LHR
1 stop11h 35mDelta
Wed 26/306:30LHR - ORD
1 stop14h 00mDelta
Deal found 16/1£511
Tue 18/212:45ORD - LHR
1 stop11h 10mJetBlue
Fri 21/207:25LHR - ORD
1 stop15h 20mJetBlue
Deal found 16/1£528
Tue 11/322:10ORD - LHR
Nonstop8h 05mUnited Airlines
Fri 21/308:55LHR - ORD
1 stop13h 20mUnited Airlines
Deal found 16/1£529
Wed 29/117:00ORD - LHR
Nonstop7h 50mBritish Airways
Tue 11/211:00LHR - ORD
Nonstop8h 55mBritish Airways
Deal found 15/1£540
Sun 2/311:35ORD - LHR
1 stop13h 35mAir Canada
Tue 11/315:00LHR - ORD
2 stops23h 01mAir Canada
Deal found 16/1£547
Thu 20/310:55ORD - LHR
1 stop15h 10mVirgin Atlantic
Tue 25/320:25LHR - ORD
1 stop24h 05mVirgin Atlantic
Deal found 16/1£551

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

Customise your flight search to find flights from O'Hare Intl to Heathrow 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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 17/2

20:25-10:00

Nonstop7h 35m

London Heathrow

Wed 5/3

14:10-17:00

Nonstop8h 50m

£488

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sat 1/2

19:40-18:50

2 stops17h 10m

London Heathrow

Sun 9/2

15:35-17:50

2 stops32h 15m

£493

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 2/3

18:30-10:50

1 stop10h 20m

London Heathrow

Thu 6/3

12:15-17:20

1 stop11h 05m

£498

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 26/1

17:00-06:50

Nonstop7h 50m

London Heathrow

Tue 4/2

11:00-13:55

Nonstop8h 55m

£502

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 4/2

17:06-06:30

3 stops31h 24m

London Heathrow

Tue 18/2

06:50-21:33

3 stops20h 43m

£506

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 30/4

18:00-12:45

1 stop12h 45m

London Heathrow

Sat 3/5

08:00-16:10

1 stop14h 10m

£510

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 12/3

18:35-11:10

1 stop11h 35m

London Heathrow

Wed 26/3

06:30-15:30

1 stop14h 00m

£511

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 23/3

17:30-10:35

1 stop12h 05m

London Heathrow

Tue 1/4

08:40-14:10

1 stop11h 30m

£518

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 18/2

12:45-05:55

1 stop11h 10m

London Heathrow

Fri 21/2

07:25-16:45

1 stop15h 20m

£528

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 11/3

15:35-07:10

1 stop10h 35m

London Heathrow

Fri 21/3

08:55-17:15

1 stop13h 20m

£529

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 27 results
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Best time to book a flight from O'Hare Intl to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow

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

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

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to Heathrow. Price data was last updated on 10 January 2025.

The best time to book flights from Chicago O'Hare Intl Airport to London Heathrow Airport is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London Heathrow Airport (average of £112). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport 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 LHR?

Find hourly flight availability from O'Hare Intl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 10% on flights from Chicago O'Hare Intl Airport to London Heathrow Airport by exploring options for tickets in the morning.

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

Explore weekly flight availability from O'Hare Intl to Heathrow. 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 17 January 2025.

The most flights from ORD to LHR 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 (35 on average).

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport 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 Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow 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 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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 17 January 2025.
See what other customers who have flown with Iberia, TAP AIR PORTUGAL and Delta from Chicago to London have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,512 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

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
8,512 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

SWISS
7.5
Good
1,598 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 10

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

Virgin Atlantic
7.5
Good
664 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Boarding

8.2

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 Heathrow. 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 Heathrow Airport round-trip?

    Currently priced at £488, Iberia will fly you from Chicago O'Hare Intl Airport to London Heathrow Airport and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Scandinavian Airlines and Icelandair - these airlines can fly you to your destination from £493 and £498, respectively. Iberia is currently priced 25% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £206. However, be on the lookout for offers from JetBlue and TAP AIR PORTUGAL, as they are both options that can get you from Chicago O'Hare Intl Airport to London Heathrow Airport for a low price.

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

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to London Heathrow Airport are Aer Lingus (70%), Iberia (68%) and American Airlines (66%).

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

    The cheapest flight price from Chicago O'Hare Intl Airport to London Heathrow Airport is £319. On average you can expect to pay £3,429. The most popular route, (Chicago O'Hare Intl - London Heathrow), can usually be booked for £377.

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

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

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

    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 Heathrow.

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London Heathrow Airport (average of £112). Flying from Chicago O'Hare Intl Airport to London Heathrow Airport 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
Milton Keynes
Croydon
Luton
Slough
Ilford
Hayes
Eastbourne
Northampton
Swindon
Maidstone
Winchester
Southend-on-Sea
Wembley
Ipswich
Watford
Crawley
Southall

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Alternative routes for O'Hare Intl to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Gatwick flights
O'Hare Intl to London City flights
Midway to Heathrow flights
O'Hare Intl to Stansted flights
O'Hare Intl to Luton flights

Top 7 airlines flying from O'Hare Intl to Heathrow

Discover the top 7 airlines that operate flights from O'Hare Intl to Heathrow. 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 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£333Average£886FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£391Average£758FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£420Average£822FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£486Average£710FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£510Average£711FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£539Average£722FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£545Average£722FlexibilityNo 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 Heathrow?

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

Cheapflights simply makes it quick and affordable to book flights from O'Hare Intl to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from O'Hare Intl to Heathrow flexibly with Cheapflights today.

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