Flights from Chicago to London available from USD 636*
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Our best rates from Chicago to London
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Fly in the next 3 months: flights from Chicago to London (LON)
Icelandair airfare from Chicago to London - starting at USD 636
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USD
Chicago (ORD)to
London (LON)Nov 15 2026 - Nov 23 2026
From
USD 636
Viewed 1 day ago
Round trip
Economy
Chicago (ORD)to
London (LON)Nov 15 2026 - Dec 02 2026
From
USD 636
Viewed 1 day ago
Round trip
Economy
Chicago (ORD)to
London (LON)Nov 15 2026 - Dec 11 2026
From
USD 636
Viewed 1 day ago
Round trip
Economy
Chicago (ORD)to
London (LON)Nov 16 2026 - Nov 25 2026
From
USD 636
Viewed 1 day ago
Round trip
Economy
Chicago (ORD)to
London (LON)Nov 16 2026 - Dec 02 2026
From
USD 636
Viewed 1 day ago
Round trip
Economy
*Fares displayed have been collected within the last 72 hours 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 from Chicago (ORD) to London (LON) in the next 365 days
Book ahead and find our best prices in 2026 and beyond
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From | To | Fare type | Dates | Price | |
|---|---|---|---|---|---|
| Chicago (ORD) | London (LON) | Round trip / Economy | Jan 24 2027 - Feb 01 2027 | From USD 636 Viewed 1 day ago | |
| Chicago (ORD) | London (LON) | Round trip / Economy | Jan 24 2027 - Feb 22 2027 | From USD 636 Viewed 1 day ago | |
| Chicago (ORD) | London (LON) | Round trip / Economy | Jan 25 2027 - Jan 31 2027 | From USD 636 Viewed 1 day ago | |
| Chicago (ORD) | London (LON) | Round trip / Economy | Jan 25 2027 - Feb 18 2027 | From USD 636 Viewed 1 day ago | |
| Chicago (ORD) | London (LON) | Round trip / Economy | Jan 25 2027 - Feb 21 2027 | From USD 636 Viewed 1 day 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.
Make the most of your trip
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.
Flying with Icelandair: more than just a journey
Generous baggage allowances
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