€204 Cheap Flights Chicago to London (ORD-LHR)

View €204 flight on Sun, 30 Nov 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Heathrow Airport (LHR)

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Cheap flights from Chicago to London (ORD-LHR)

Prices were available within the past 7 days and start at €204 for one-way flights and €427 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Sun, 7 Sep - Tue, 16 Sep
ORD
Chicago
LHR
London
€427 Return, just found
€427
Return
just found
Select Aer Lingus flight, departing Sun, 7 Sep from Chicago to London, returning Tue, 16 Sep, priced at €427 just found
Iberia
Sun, 7 Sep - Tue, 16 Sep
ORD
Chicago
LHR
London
€441 Return, just found
€441
Return
just found
Select Iberia flight, departing Sun, 7 Sep from Chicago to London, returning Tue, 16 Sep, priced at €441 just found
Icelandair
Tue, 24 Feb - Sat, 28 Feb
ORD
Chicago
LHR
London
€447 Return, found 6 days ago
€447
Return
found 6 days ago
Select Icelandair flight, departing Tue, 24 Feb from Chicago to London, returning Sat, 28 Feb, priced at €447 found 6 days ago
British Airways
Sun, 7 Sep - Tue, 16 Sep
ORD
Chicago
LHR
London
€449 Return, just found
€449
Return
just found
Select British Airways flight, departing Sun, 7 Sep from Chicago to London, returning Tue, 16 Sep, priced at €449 just found
TAP Portugal
Wed, 29 Oct - Wed, 5 Nov
ORD
Chicago
LHR
London
€498 Return, found 4 days ago
€498
Return
found 4 days ago
Select TAP Portugal flight, departing Wed, 29 Oct from Chicago to London, returning Wed, 5 Nov, priced at €498 found 4 days ago
Virgin Atlantic
Sun, 5 Oct - Tue, 14 Oct
ORD
Chicago
LHR
London
€508 Return, found 3 days ago
€508
Return
found 3 days ago
Select Virgin Atlantic flight, departing Sun, 5 Oct from Chicago to London, returning Tue, 14 Oct, priced at €508 found 3 days ago
Scandinavian Airlines
Wed, 17 Dec - Wed, 7 Jan
ORD
Chicago
LHR
London
€519 Return, found 2 days ago
€519
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Wed, 17 Dec from Chicago to London, returning Wed, 7 Jan, priced at €519 found 2 days ago
American Airlines
Sun, 7 Sep - Tue, 16 Sep
ORD
Chicago
LHR
London
€551 Return, just found
€551
Return
just found
Select American Airlines flight, departing Sun, 7 Sep from Chicago to London, returning Tue, 16 Sep, priced at €551 just found
United
Sun, 7 Sep - Tue, 16 Sep
ORD
Chicago
LHR
London
€552 Return, just found
€552
Return
just found
Select United flight, departing Sun, 7 Sep from Chicago to London, returning Tue, 16 Sep, priced at €552 just found
Lufthansa
Mon, 13 Oct - Fri, 24 Oct
ORD
Chicago
LHR
London
€562 Return, found 3 days ago
€562
Return
found 3 days ago
Select Lufthansa flight, departing Mon, 13 Oct from Chicago to London, returning Fri, 24 Oct, priced at €562 found 3 days ago

Find the cheapest month to fly from Chicago (ORD) to London (LHR)

November is typically the cheapest month to fly

From €398 - €648 per traveller.

Graph displaying average flight prices per month

Chicago to London route information
Origin airport
O'Hare Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Return price
€426
Distance
6307 km
Average flight time
13 hours 56 mins

Perfect flights from Chicago to London

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Our flexible O'Hare Intl. to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from €204 and roundtrip prices from €427. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Heathrow and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in London.

Frequently asked questions

How much is a flight from O'Hare Intl. Airport (ORD) to London Heathrow?
If you're travelling from O'Hare Intl. Airport (ORD) to Heathrow Airport (LHR), round-trip flights start from €427. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from O'Hare Intl. Airport (ORD) to Heathrow Airport?
Most flights can be cancelled online, but each airline has a different set of terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from ORD to LHR that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for O'Hare Airport to Heathrow Airport (LHR) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from ORD to London Heathrow?
With a flight distance of 6,400 kilometres between O'Hare Intl. Airport (ORD) and London Heathrow, this is a long trip. Make sure you stay hydrated and go for a short walk down the aisle every so often.
Which airlines fly direct from ORD to London Heathrow?
Many people like to fly with United Airlines (UA) from O'Hare Intl. Airport (ORD) to LHR. This popular airline offers 91 monthly flights, so you can easily find a flight time that's perfect for you. For more options, check out the ticket prices from British Airways (BA). This airlines operates 60 monthly flights between these airports.
Are O'Hare Airport to LHR flight tickets cheaper when they're purchased at the last minute?
It is possible to find an amazing last-minute deal from ORD to Heathrow Airport, but it's also possible to miss out altogether! As many airlines release prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares carrier prices and updates flight deals frequently, so you can rest easy knowing you're always seeing the latest offers.

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