Flights from Chicago to London available from USD 746*
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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 788
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USD
Chicago (ORD)to
London (LON)Jan 26 2027 - Feb 16 2027
From
USD 788
Viewed 3 hrs ago
Round trip
Economy
Chicago (ORD)to
London (LON)Dec 02 2026 - Dec 22 2026
From
USD 788
Viewed 3 hrs ago
Round trip
Economy
Chicago (ORD)to
London (LON)Dec 06 2026 - Dec 16 2026
From
USD 788
Viewed 3 hrs ago
Round trip
Economy
Chicago (ORD)to
London (LON)Dec 09 2026 - Dec 23 2026
From
USD 788
Viewed 3 hrs ago
Round trip
Economy
Chicago (ORD)to
London (LON)Nov 08 2026 - Nov 13 2026
From
USD 788
Viewed 3 hrs ago
Round trip
Economy
Chicago (ORD)to
London (LHR)Jan 24 2027 - Feb 02 2027
From
USD 793
Viewed 1 hour ago
Round trip
Economy
Chicago (ORD)to
London (LHR)Nov 08 2026 - Nov 13 2026
From
USD 789
Viewed 19 hrs ago
Round trip
Economy
Chicago (ORD)to
London (LHR)Nov 16 2026 - Nov 25 2026
From
USD 808
Viewed 1 day ago
Round trip
Economy
Chicago (ORD)to
London (LHR)Dec 06 2026 - Dec 13 2026
From
USD 839
Viewed 2 days ago
Round trip
Economy
Chicago (ORD)to
London (LHR)Jan 02 2027 - Jan 11 2027
From
USD 832
Viewed 2 days 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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USD
From | To | Fare type | Dates | Price | |
|---|---|---|---|---|---|
| Chicago (ORD) | London (LON) | Round trip / Economy | Feb 04 2027 - Feb 07 2027 | From USD 746 Viewed 2 hrs ago | |
| Chicago (ORD) | London (LHR) | Round trip / Economy | Feb 18 2027 - Feb 23 2027 | From USD 746 Viewed 2 hrs ago | |
| Chicago (ORD) | London (LHR) | Round trip / Economy | Feb 18 2027 - Feb 22 2027 | From USD 746 Viewed 2 hrs ago | |
| Chicago (ORD) | London (LHR) | Round trip / Economy | Feb 18 2027 - Feb 21 2027 | From USD 746 Viewed 2 hrs ago | |
| Chicago (ORD) | London (LON) | Round trip / Economy | Feb 02 2027 - Feb 26 2027 | From USD 779 Viewed 4 hrs ago | |
| Chicago (ORD) | London (LON) | Round trip / Economy | Feb 09 2027 - Feb 19 2027 | From USD 788 Viewed 3 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.
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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Entertainment for all ages
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Delicious food and drink
Learn moreSee other popular destination cities with Icelandair