S$501 Cheap Flights from Chicago to London

View S$501 flight on Wed, 28 Jan, 2026Opens 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 S$501 for one-way flights and S$710 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Thu, 26 Feb - Mon, 2 Mar
ORD
Chicago
LHR
London
S$710 Return, found 1 day ago
S$710
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, 26 Feb from Chicago to London, returning Mon, 2 Mar, priced at S$710 found 1 day ago
Scandinavian Airlines
Thu, 26 Feb - Mon, 2 Mar
ORD
Chicago
LHR
London
S$714 Return, found 1 day ago
S$714
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, 26 Feb from Chicago to London, returning Mon, 2 Mar, priced at S$714 found 1 day ago
Scandinavian Airlines
Thu, 26 Feb - Mon, 2 Mar
ORD
Chicago
LHR
London
S$719 Return, found 1 day ago
S$719
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, 26 Feb from Chicago to London, returning Mon, 2 Mar, priced at S$719 found 1 day ago
Scandinavian Airlines
Thu, 26 Feb - Mon, 2 Mar
ORD
Chicago
LHR
London
S$724 Return, found 1 day ago
S$724
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, 26 Feb from Chicago to London, returning Mon, 2 Mar, priced at S$724 found 1 day ago
Scandinavian Airlines
Thu, 26 Feb - Mon, 2 Mar
ORD
Chicago
LHR
London
S$750 Return, found 1 day ago
S$750
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, 26 Feb from Chicago to London, returning Mon, 2 Mar, priced at S$750 found 1 day ago
United
Sun, 18 Jan - Tue, 27 Jan
ORD
Chicago
LHR
London
S$839 Return, found 3 days ago
S$839
Return
found 3 days ago
Select United flight, departing Sun, 18 Jan from Chicago to London, returning Tue, 27 Jan, priced at S$839 found 3 days ago
Swiss International Air Lines
Sun, 18 Jan - Tue, 27 Jan
ORD
Chicago
LHR
London
S$842 Return, found 3 days ago
S$842
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Sun, 18 Jan from Chicago to London, returning Tue, 27 Jan, priced at S$842 found 3 days ago
Virgin Atlantic
Sun, 18 Jan - Tue, 27 Jan
ORD
Chicago
LHR
London
S$846 Return, found 3 days ago
S$846
Return
found 3 days ago
Select Virgin Atlantic flight, departing Sun, 18 Jan from Chicago to London, returning Tue, 27 Jan, priced at S$846 found 3 days ago
Air Canada
Sun, 18 Jan - Tue, 27 Jan
ORD
Chicago
LHR
London
S$860 Return, found 3 days ago
S$860
Return
found 3 days ago
Select Air Canada flight, departing Sun, 18 Jan from Chicago to London, returning Tue, 27 Jan, priced at S$860 found 3 days ago
British Airways
Sun, 18 Jan - Tue, 27 Jan
ORD
Chicago
LHR
London
S$875 Return, found 3 days ago
S$875
Return
found 3 days ago
Select British Airways flight, departing Sun, 18 Jan from Chicago to London, returning Tue, 27 Jan, priced at S$875 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 S$582 - S$930 per traveller.

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 S$710. 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.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Return price
S$709
Distance
6307 km
Average flight time
13 hours 55 mins

Book with confidence

Flights from Chicago to London

There are several airlines that operate frequent flights from Chicago (ORD) to London (LHR) including

The earliest flight leaves O'Hare Intl. Airport at 08:55 and arrives at Heathrow Airport at 05:55. The last flight of the day departs Chicago at 23:00 and arrives at London at 22:45.

The flight distance from Chicago to London is about 6378 km, the shortest flight is 07 hours 35 minutes with WestJet.

Expedia lets you search across the largest number of airlines and London flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Chicago London flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Chicago to London trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your London flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Chicago to London with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Flights from Chicago to London

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