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O'Hare International Airport to Heathrow Airport flight

Explore the cheapest one-way and round-trip flights from O'Hare International Airport to Heathrow Airport over the next 90 days, with one-way fares from THB 9,700 and round-trip from THB 16,590. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        ORD 19:35
        8h
        Direct
        LHR 08:35
        Chicago - London | Wed, Oct 28 | Iberia
        LHR 16:30
        9h
        Direct
        ORD 19:30
        London - Chicago | Wed, Nov 4 | Iberia
        THB 24,140 THB 31,670
        24% off
        24% off
        THB 31,670 THB 24,140
      • ORD 18:05
        8h
        Direct
        LHR 08:05
        Chicago - London | Tue, Oct 20 | American Airlines
        LHR 12:35
        8h 50m
        Direct
        ORD 16:25
        London - Chicago | Tue, Oct 27 | American Airlines
        THB 24,380 THB 31,670
        23% off
        23% off
        THB 31,670 THB 24,380
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Tue, Nov 10 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 16:45
        London - Chicago | Tue, Nov 17 | Scandinavian Airlines
        THB 16,590 THB 31,670
        48% off
        48% off
        THB 31,670 THB 16,590
      • ORD 20:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Wed, Oct 28 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 16:45
        London - Chicago | Wed, Nov 4 | Scandinavian Airlines
        THB 17,450
        45% off
        THB 31,670 THB 17,450
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Mon, Nov 16 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 16:45
        London - Chicago | Sun, Nov 22 | Scandinavian Airlines
        THB 17,550
        45% off
        THB 31,670 THB 17,550
      • ORD 20:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Tue, Oct 27 | Scandinavian Airlines
        LHR 06:40
        16h 5m
        1 stop
        ORD 17:45
        London - Chicago | Thu, Oct 29 | Scandinavian Airlines
        THB 17,870
        44% off
        THB 31,670 THB 17,870
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Tue, Oct 20 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 17:45
        London - Chicago | Tue, Oct 27 | Scandinavian Airlines
        THB 18,030
        43% off
        THB 31,670 THB 18,030
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Wed, Nov 18 | Scandinavian Airlines
        LHR 18:40
        28h 5m
        1 stop
        ORD 16:45
        London - Chicago | Fri, Nov 20 | Scandinavian Airlines
        THB 18,150
        43% off
        THB 31,670 THB 18,150
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Mon, Nov 9 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 16:45
        London - Chicago | Fri, Nov 13 | Scandinavian Airlines
        THB 18,160
        43% off
        THB 31,670 THB 18,160
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Sun, Nov 8 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 16:45
        London - Chicago | Fri, Nov 13 | Scandinavian Airlines
        THB 18,160
        43% off
        THB 31,670 THB 18,160
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Sat, Nov 7 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 16:45
        London - Chicago | Mon, Nov 9 | Scandinavian Airlines
        THB 18,160
        43% off
        THB 31,670 THB 18,160
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Fri, Nov 6 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 16:45
        London - Chicago | Sun, Nov 8 | Scandinavian Airlines
        THB 18,160
        43% off
        THB 31,670 THB 18,160
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Thu, Nov 5 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 16:45
        London - Chicago | Tue, Nov 10 | Scandinavian Airlines
        THB 18,160
        43% off
        THB 31,670 THB 18,160
      • ORD 19:15
        14h 45m
        1 stop
        LHR 16:00
        Chicago - London | Wed, Nov 4 | Scandinavian Airlines
        LHR 10:20
        12h 25m
        1 stop
        ORD 16:45
        London - Chicago | Sun, Nov 8 | Scandinavian Airlines
        THB 18,160
        43% off
        THB 31,670 THB 18,160
      • CHI 13:00
        17h 25m
        1 stop
        LON 14:00
        Chicago - London | Sun, Sep 27 | Normal Airline
        LON 15:00
        6h
        Direct
        CHI 16:00
        London - Chicago | Tue, Sep 29 | Normal Airline
        Find more flights
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      • Cheapest nonstop
        ORD 20:40
        7h 45m
        Direct
        LHR 10:25
        Chicago - London | Tue, Nov 3 | American Airlines
        THB 10,790 THB 14,020
        23% off
        23% off
        THB 14,020 THB 10,790
      • ORD 18:50
        7h 45m
        Direct
        LHR 08:35
        Chicago - London | Mon, Nov 16 | American Airlines
        THB 10,790 THB 14,020
        23% off
        23% off
        THB 14,020 THB 10,790
      • ORD 18:30
        19h
        1 stop
        LHR 19:30
        Chicago - London | Sat, Nov 7 | Icelandair
        THB 9,700 THB 14,020
        31% off
        31% off
        THB 14,020 THB 9,700
      • ORD 18:30
        10h 20m
        1 stop
        LHR 10:50
        Chicago - London | Tue, Nov 3 | Icelandair
        THB 9,700
        31% off
        THB 14,020 THB 9,700
      • ORD 18:30
        10h 20m
        1 stop
        LHR 10:50
        Chicago - London | Thu, Nov 19 | Icelandair
        THB 9,700
        31% off
        THB 14,020 THB 9,700
      • ORD 18:30
        10h 20m
        1 stop
        LHR 10:50
        Chicago - London | Thu, Nov 5 | Icelandair
        THB 9,760
        30% off
        THB 14,020 THB 9,760
      • ORD 18:30
        19h
        1 stop
        LHR 19:30
        Chicago - London | Tue, Nov 17 | Icelandair
        THB 9,890
        28% off
        THB 14,020 THB 9,890
      • ORD 18:30
        10h 20m
        1 stop
        LHR 10:50
        Chicago - London | Fri, Nov 6 | Icelandair
        THB 9,960
        28% off
        THB 14,020 THB 9,960
      • ORD 18:30
        19h
        1 stop
        LHR 19:30
        Chicago - London | Wed, Nov 4 | Icelandair
        THB 9,980
        28% off
        THB 14,020 THB 9,980
      • ORD 19:30
        10h 20m
        1 stop
        LHR 10:50
        Chicago - London | Sat, Oct 24 | Icelandair
        THB 9,990
        28% off
        THB 14,020 THB 9,990
      • ORD 18:30
        19h
        1 stop
        LHR 19:30
        Chicago - London | Sun, Nov 15 | Icelandair
        THB 9,990
        28% off
        THB 14,020 THB 9,990
      • ORD 18:30
        10h 20m
        1 stop
        LHR 10:50
        Chicago - London | Thu, Nov 12 | Icelandair
        THB 10,030
        28% off
        THB 14,020 THB 10,030
      • ORD 18:30
        19h
        1 stop
        LHR 19:30
        Chicago - London | Sat, Nov 14 | Icelandair
        THB 10,050
        28% off
        THB 14,020 THB 10,050
      • ORD 18:30
        10h 20m
        1 stop
        LHR 10:50
        Chicago - London | Sun, Nov 1 | Icelandair
        THB 10,110
        28% off
        THB 14,020 THB 10,110
      • CHI 13:00
        17h 25m
        1 stop
        LON 14:00
        Chicago - London | Sun, Sep 27 | Normal Airline
        Find more flights
        Find more flights

Flight prices from O'Hare International Airport to Heathrow Airport are based on the average fares across airlines for the next three months, based on Trip.com’s latest data.

Trip.com Price Insights: Flights from O'Hare International Airport to Heathrow Airport

Which month has the cheapest one-way flights from O'Hare International Airport to Heathrow Airport?

The data is based on Trip.com data from the past 12 months and shows the average one-way fares by month from O'Hare International Airport to Heathrow Airport.

Based on Trip.com data from the past 12 months, the cheapest one-way flights from O'Hare International Airport to Heathrow Airport are usually in February, with an average price of THB 14,620. June sees the highest fares, around THB 31,520.

THB 31,520
THB 23,070
THB 14,620
THB 6,170
    Cheapest
  • THB 16,520
    Sep
  • THB 19,310
    Oct
  • THB 26,180
    Nov
  • THB 18,000
    Dec
  • THB 17,810
    Jan
  • THB 14,620
    Feb
  • THB 20,540
    Mar
  • THB 18,950
    Apr
  • THB 28,590
    May
  • THB 31,520
    Jun
  • THB 21,560
    Jul
  • THB 25,790
    Aug

Which month has the cheapest round-trip flights from O'Hare International Airport to Heathrow Airport?

The data is based on Trip.com data from the past 12 months and shows the average round-trip fares by month from O'Hare International Airport to Heathrow Airport.

Based on Trip.com data from the past 12 months, the cheapest round‑trip flights from O'Hare International Airport to Heathrow Airport are usually in February, with an average price of THB 21,560. July sees the highest fares, around THB 70,090.

THB 70,090
THB 45,825
THB 21,560
0
    Cheapest
  • THB 27,000
    Sep
  • THB 29,060
    Oct
  • THB 36,470
    Nov
  • THB 39,560
    Dec
  • THB 25,190
    Jan
  • THB 21,560
    Feb
  • THB 29,030
    Mar
  • THB 37,190
    Apr
  • THB 44,650
    May
  • THB 48,930
    Jun
  • THB 70,090
    Jul
  • THB 37,550
    Aug

Which day of the week has the cheapest flights from O'Hare International Airport to Heathrow Airport?

The data is based on Trip.com data from the past 12 months and shows the average fares by each day of the week from O'Hare International Airport to Heathrow Airport.

Based on Trip.com data from the past 12 months, the cheapest day for flights from O'Hare International Airport to Heathrow Airport is Monday, with average prices lower than other days. Try to avoid departing on Thursday, as fares are typically the highest.

THB 25,160
THB 21,685
THB 18,210
THB 14,735
  • THB 18,210
    Mon
  • THB 19,800
    Tue
  • THB 21,770
    Wed
  • THB 25,160
    Thu
  • THB 24,050
    Fri
  • THB 24,200
    Sat
  • THB 21,010
    Sun

Which airline offers the cheapest flights from O'Hare International Airport to Heathrow Airport?

The cheapest airline flying from O'Hare International Airport to Heathrow Airport is Icelandair (from THB 9,700) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Icelandair
From THB 9,700
Air Canada
From THB 10,440
United Airlines
From THB 10,620
Virgin Atlantic
From THB 10,640
Lufthansa
From THB 10,730
Delta Air Lines
From THB 10,750
American Airlines
From THB 10,790
Jetblue Airways
From THB 10,840
Aer Lingus
From THB 10,890
Iberia
From THB 10,990

Find more flights and airlines

What is the flight schedule from O'Hare International Airport to Heathrow Airport?

Check the schedule for flights from Chicago to London and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. FI852

    O'Hare International Airport

    19:25

    ORD

    6h 15m

    Direct

    06:40

    KEF

    S M T W T F S
    Search

  2. FI450

    Keflavík International Airport

    07:40

    KEF

    3h 15m

    Direct

    11:55

    LHR

    S M T W T F S

  3. FI852

    O'Hare International Airport

    19:25

    ORD

    6h 15m

    Direct

    06:40

    KEF

    S M T W T F S
    Search

  4. FI204

    Keflavík International Airport

    07:40

    KEF

    3h 15m

    Direct

    12:55

    CPH

    S M T W T F S

  5. SK1501

    Copenhagen Airport

    20:40

    CPH

    2h

    Direct

    21:40

    LHR

    S M T W T - S

  6. FI852

    O'Hare International Airport

    19:25

    ORD

    6h 15m

    Direct

    06:40

    KEF

    S M T W T F S
    Search

  7. FI454

    Keflavík International Airport

    16:10

    KEF

    3h 10m

    Direct

    20:20

    LHR

    S M T W T F S
Find more flights and airlines

About O'Hare International Airport and Heathrow Airport

Learn about O'Hare International Airport (ORD) and Heathrow Airport (LHR) — including location, terminals, transportation, and travel tips.

Flight distance 6,351.55km
Cheapest one-way ticket price THB 9,700
Cheapest return ticket price THB 16,590

FAQs for O'Hare International Airport to Heathrow Airport Flights

  • How long is the flight from O'Hare International Airport to Heathrow Airport?

    O'Hare International Airport to Heathrow Airport takes about 7 hours 4 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 30 daily flights from O'Hare International Airport (ORD) to Heathrow Airport (LHR).
  • The earliest flight from O'Hare International Airport to Heathrow Airport departs at 16:25, and the last departs at 22:25, with about 9 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from O'Hare International Airport (ORD) to Heathrow Airport (LHR) is quite popular. Without considering departure times or holidays, tickets cost around THB 25,410 in December, the most expensive month to book this route.
  • The earliest flight departs from O'Hare International Airport (ORD) at 08:10 and arrives in Heathrow Airport (LHR) at 22:10.
  • The latest flight departs from O'Hare International Airport (ORD) at 21:25 and arrives in Heathrow Airport (LHR) at 11:45.
    • The distance from London Gatwick Airport to downtown is about 39km, by taxi about 50 minutes.
    • The distance from Heathrow Airport to downtown is about 23km, by taxi about 40 minutes.
    • The distance from London Luton Airport to downtown is about 44km, by taxi about 1 hour.
  • British Airways is a very popular airline operating an average of 7575 flights per month.
  • One-way flights from O'Hare International Airport to Heathrow Airport currently start from THB 9,700, and round-trip fares start from THB 16,590. The current lowest fare is a Icelandair flight departing on Sat, Nov 7; prices may vary depending on availability.
  • Yes. British Airways, American Airlines and United Airlines operate direct flights from O'Hare International Airport to Heathrow Airport, with an average flight time of 6 hours 59 minutes, and around 61 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from O'Hare International Airport to Heathrow Airport is THB 22,680. Prices may vary depending on the departure date, airline, and availability.
  • O'Hare International Airport to Heathrow Airport operates around 58 weekly flights, mainly by American Airlines, United Airlines and British Airways. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter O'Hare International Airport and Heathrow Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.