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Cheap flights from Chicago O'Hare Intl Airport to London Heathrow Airport from £214

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LHR
19 Feb — 26 Feb1
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 Thursday 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 14 February 2025.

Round-trip from

£469

One-way from

£214

Popular in

June

Cheapest in

February

Average price

£533

Good round-trip deal

£498 or less

Good one-way deal

£325 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 24/2-5/3
  • 2 total stops
  • 43h 30m total
  • Chicago to London
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1/4
  • 1/4
  • 2 total stops
  • 36h 33m total
  • Chicago to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£129 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to London Heathrow.
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Price to beat on a one-way flight from Chicago O'Hare Intl to London Heathrow.
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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 14 February 2025.

Mon 17/219:40ORD - LHR
1 stop14h 20mScandinavian Airlines
Sun 23/219:30LHR - ORD
1 stop28h 20mScandinavian Airlines
Deal found 13/2£469
Tue 25/218:30ORD - LHR
1 stop10h 20mIcelandair
Tue 4/312:15LHR - ORD
1 stop11h 05mIcelandair
Deal found 13/2£470
Sun 2/317:18ORD - LHR
1 stop10h 02mIberia
Wed 12/313:50LHR - ORD
Nonstop8h 50mIberia
Deal found 13/2£471
Wed 26/320:40ORD - LHR
1 stop11h 45mAer Lingus
Wed 2/413:25LHR - ORD
1 stop11h 35mAer Lingus
Deal found 13/2£473
Tue 22/422:20ORD - LHR
Nonstop7h 55mFinnair
Tue 29/409:30LHR - ORD
1 stop14h 20mFinnair
Deal found 13/2£475
Sun 9/321:25ORD - LHR
1 stop15h 05mTAP AIR PORTUGAL
Fri 14/306:00LHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Deal found 13/2£477
Sun 2/316:55ORD - LHR
1 stop11h 40mVirgin Atlantic
Tue 11/309:00LHR - ORD
1 stop12h 05mVirgin Atlantic
Deal found 13/2£480
Wed 5/321:10ORD - LHR
Nonstop8h 05mUnited Airlines
Wed 12/308:55LHR - ORD
1 stop34h 00mUnited Airlines
Deal found 13/2£489
Sun 2/307:05ORD - LHR
1 stop18h 10mDelta
Wed 12/306:30LHR - ORD
1 stop14h 00mDelta
Deal found 13/2£496
Tue 11/314:34ORD - LHR
2 stops18h 51mMultiple Airlines
Mon 17/315:15LHR - ORD
3 stops45h 19mMultiple Airlines
Deal found 13/2£497
Wed 26/211:35ORD - LHR
2 stops14h 55mAir Canada
Wed 5/306:50LHR - ORD
2 stops13h 55mAir Canada
Deal found 12/2£499
Wed 26/322:45ORD - LHR
Nonstop7h 45mBritish Airways
Wed 2/411:05LHR - ORD
Nonstop8h 45mBritish Airways
Deal found 13/2£527

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 14 February 2025.

Fly from

O'Hare Intl

Fly to

Heathrow

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 24/2

19:40-16:00

1 stop14h 20m

London Heathrow

Wed 5/3

18:40-17:50

1 stop29h 10m

£469

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 4/3

19:40-11:25

1 stop9h 45m

London Heathrow

Wed 12/3

08:50-15:00

1 stop11h 10m

£469

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 25/2

18:30-10:50

1 stop10h 20m

London Heathrow

Tue 4/3

12:15-17:20

1 stop11h 05m

£470

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 2/3

21:45-11:30

Nonstop7h 45m

London Heathrow

Tue 11/3

11:55-15:45

Nonstop8h 50m

£471

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 22/4

22:20-12:15

Nonstop7h 55m

London Heathrow

Tue 29/4

09:30-17:50

1 stop14h 20m

£475

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 9/3

21:25-22:40

1 stop20h 15m

London Heathrow

Thu 13/3

19:55-16:30

1 stop25h 35m

£477

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 2/3

16:55-10:35

1 stop11h 40m

London Heathrow

Tue 11/3

09:00-16:05

1 stop12h 05m

£480

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 26/2

17:44-06:30

3 stops30h 46m

London Heathrow

Wed 5/3

06:50-18:26

3 stops17h 36m

£482

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 5/3

21:10-11:15

Nonstop8h 05m

London Heathrow

Wed 12/3

08:55-13:55

1 stop34h 00m

£489

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 2/3

07:05-07:15

1 stop18h 10m

London Heathrow

Wed 12/3

06:30-15:30

1 stop14h 00m

£496

Flights are sorted by cheapest return flights first.

Deals found on 12/2

Showing 1-10 of 32 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 7 February 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 £162). 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 14 February 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 16% 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 14 February 2025.

The most flights from ORD to LHR are scheduled on a Wednesday (38 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (31 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 14 February 2025.
See what other customers who have flown with Delta, Finnair and Austrian Airlines 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
8,303 reviews
Check prices

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Delta
8.0
Very Good
8,303 reviews
Delta
8.0
Very Good
8,303 reviews
Check prices

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Finnair
7.6
Good
1,279 reviews
Delta
8.0
Very Good
8,303 reviews
Check prices

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Austrian Airlines
7.6
Good
778 reviews
Delta
8.0
Very Good
8,303 reviews
Check prices

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

SWISS
7.5
Good
1,578 reviews
Delta
8.0
Very Good
8,303 reviews
Check prices

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Virgin Atlantic
7.5
Good
659 reviews
Delta
8.0
Very Good
8,303 reviews
Check prices

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 £469, Scandinavian Airlines will fly you from Chicago O'Hare Intl Airport to London Heathrow Airport and back. In addition to Scandinavian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Aer Lingus and Icelandair - these airlines can fly you to your destination from £469 and £470, respectively. Scandinavian Airlines is currently priced 26% 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 JetBlue, with whom users have recently found tickets for as low as £219. However, be on the lookout for offers from Icelandair and WestJet, 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 (79%), American Airlines (71%) and Alaska Airlines (71%).

  • 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 £308. On average you can expect to pay £3,248. The most popular route, (Chicago O'Hare Intl - London Heathrow), can usually be booked for £402.

  • 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 £162). 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
Croydon
Milton Keynes
Gatwick
Slough
Luton
Ilford
Hayes
Eastbourne
Swindon
Northampton
Southend-on-Sea
Wembley
Ipswich
Maidstone
Winchester
Crawley
Southall
Watford

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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 6 airlines flying from O'Hare Intl to Heathrow

Discover the top 6 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 14 February 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£325Average£867FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£382Average£741FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£410Average£840FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest£479Average£689FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£511Average£704FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£532Average£754FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

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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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