Flights from Chicago to London available from USD 438*

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Our best rates from Chicago to London

Jul 2025
FromUSD 642*
Fare: Round trip/Economy
Displaying fares for July-2025
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    • *Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking

    Fly in the next three months: flights from Chicago to London

    USD

    Chicago (ORD)to

    London (LGW)
    Sep 30 2025 - Oct 15 2025
    From
    USD 521
    Round trip
    Economy

    Chicago (ORD)to

    London (LGW)
    Sep 08 2025 - Sep 17 2025
    From
    USD 535
    Round trip
    Economy

    Chicago (ORD)to

    London (LGW)
    Aug 30 2025 - Sep 06 2025
    From
    USD 644
    Round trip
    Economy

    Chicago (ORD)to

    London (LGW)
    Jul 29 2025 - Aug 05 2025
    From
    USD 774
    Round trip
    Economy

    Chicago (ORD)to

    London (LGW)
    Jul 27 2025 - Aug 05 2025
    From
    USD 789
    Round trip
    Economy

    Chicago (ORD)to

    London (LGW)
    Jul 19 2025 - Jul 25 2025
    From
    USD 1,684
    Round trip
    Economy

    Chicago (ORD)to

    London (LHR)
    Jul 31 2025 - Aug 13 2025
    From
    USD 808
    Round trip
    Economy

    Chicago (ORD)to

    London (LON)
    Sep 30 2025 - Oct 15 2025
    From
    USD 521
    Round trip
    Economy

    Chicago (ORD)to

    London (LON)
    Sep 20 2025 - Oct 03 2025
    From
    USD 528
    Round trip
    Economy

    Chicago (ORD)to

    London (LON)
    Sep 24 2025 - Oct 03 2025
    From
    USD 528
    Round trip
    Economy

    Chicago (ORD)to

    London (LON)
    Sep 22 2025 - Oct 03 2025
    From
    USD 528
    Round trip
    Economy

    Chicago (ORD)to

    London (LON)
    Sep 22 2025 - Oct 15 2025
    From
    USD 528
    Round trip
    Economy

    *Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.

     

    Blue image with a map of Iceland and text that reads: Include a little more of Iceland in your journey. Add a Stopover

    Plan ahead for your trip from Chicago to London with Icelandair

    USD
    Plan ahead for your trip from Chicago to London with Icelandair
    From
    To
    Fare type
    Dates
    Price
    Chicago (ORD)London (LHR)Round trip
    /
    Economy    		Feb 12 2026 - Feb 22 2026

    From

    USD 577

    Viewed 22 hrs ago

    Chicago (ORD)London (LHR)Round trip
    /
    Economy    		Mar 07 2026 - Mar 14 2026

    From

    USD 629

    Viewed 7 hrs ago

    Chicago (ORD)London (LGW)Round trip
    /
    Economy    		Dec 29 2025 - Jan 10 2026

    From

    USD 576

    Viewed 1 day ago

    Chicago (ORD)London (LGW)Round trip
    /
    Economy    		Jun 03 2026 - Jun 19 2026

    From

    USD 915

    Viewed 23 hrs ago

    Chicago (ORD)London (LON)Round trip
    /
    Economy    		Jan 08 2026 - Jan 14 2026

    From

    USD 521

    Viewed 14 hrs ago

    Chicago (ORD)London (LON)Round trip
    /
    Economy    		Jan 08 2026 - Jan 20 2026

    From

    USD 521

    Viewed 14 hrs ago

    Chicago (ORD)London (LON)Round trip
    /
    Economy    		Jan 08 2026 - Feb 01 2026

    From

    USD 521

    Viewed 14 hrs ago

    Chicago (ORD)London (LON)Round trip
    /
    Economy    		Jan 08 2026 - Feb 08 2026

    From

    USD 521

    Viewed 14 hrs ago

    Chicago (ORD)London (LON)Round trip
    /
    Economy    		Jan 09 2026 - Jan 17 2026

    From

    USD 521

    Viewed 14 hrs ago

    *Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.

    Flights to London from Chicago

    Marvel in all the grandeur of Buckingham Palace, witness the iconic silhouette of Big Ben standing tall against the Thames, or immerse yourself in the artistic wonders of the National Portrait Gallery - these are just a few of the countless captivating sights that await you in London.

    For an unparalleled in-flight experience, choose Icelandair to fly from Chicago (ORD) to London Heathrow (LHR) or Gatwick (LGW).

     

    FAQs about travel from Chicago to London

    Helpful information for US travelers visiting London

    What is the flight duration from Chicago to London?

    It takes around 8 hours to fly from Chicago O’Hare International (ORD) to London Gatwick or Heathrow Airport. However, this does not account for any stopovers you have planned, which will extend your overall journey time.

    When you book flights to London from Chicago with Icelandair, you can also choose to add a Stopover in Iceland for up to 7 days at no extra airfare.

    When is the best time to fly from Chicago (ORD) to London (LHR)?

    The best time to visit London depends on what you’d like to do once you arrive. Spring in London is a sight to behold as cherry blossoms paint the streets beautiful shades of pink. It’s the perfect temperature for some sightseeing, too.

    On the other hand, London’s festive spirit and celebrations during the winter are unrivaled. The cheapest time to book flights from Chicago to London is generally between January and February, a quieter season in London and a good time to enjoy the city without the crowds.

    Which airport in London will I fly to from Chicago?

    Passengers booking plane tickets from Chicago to London can fly into London Heathrow Airport (LHR) or Gatwick Airport (LGW).

    You can use the flight finder tool above to select flights to your preferred airport.

    How can I find cheap flights from Chicago to London?

    Being flexible about when you fly, as well as which London airport you fly to can help you find a good deal on your tickets.

    We also recommend checking our flight deals regularly and booking in advance to secure the best airfare.

    Does Icelandair offer direct flights from Chicago to London?

    Passengers flying from Chicago to London with Icelandair will connect at Keflavik International Airport. From there, you will fly directly to London. The flight from KEF to LHR is around 3 hours.

    Visit our support hub for more information on flying from the US with Icelandair, including baggage allowances and visa information.