S$584 Cheap Flights from Chicago to London

View S$584 flight on Sun, 29 Nov, 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Chicago to London (ORD-LHR)

Prices were available within the past 7 days and start at S$584 for one-way flights and S$965 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sun, 22 Nov - Mon, 30 Nov
ORD
Chicago
LHR
London
S$965 Return, found 1 day ago
S$965
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, 22 Nov from Chicago to London, returning Mon, 30 Nov, priced at S$965 found 1 day ago
Scandinavian Airlines
Sun, 22 Nov - Mon, 30 Nov
ORD
Chicago
LHR
London
S$970 Return, found 1 day ago
S$970
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, 22 Nov from Chicago to London, returning Mon, 30 Nov, priced at S$970 found 1 day ago
Scandinavian Airlines
Sun, 22 Nov - Mon, 30 Nov
ORD
Chicago
LHR
London
S$974 Return, found 1 day ago
S$974
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, 22 Nov from Chicago to London, returning Mon, 30 Nov, priced at S$974 found 1 day ago
Scandinavian Airlines
Sun, 22 Nov - Mon, 30 Nov
ORD
Chicago
LHR
London
S$1,007 Return, found 1 day ago
S$1,007
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, 22 Nov from Chicago to London, returning Mon, 30 Nov, priced at S$1,007 found 1 day ago
Scandinavian Airlines
Sun, 22 Nov - Mon, 30 Nov
ORD
Chicago
LHR
London
S$1,012 Return, found 1 day ago
S$1,012
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, 22 Nov from Chicago to London, returning Mon, 30 Nov, priced at S$1,012 found 1 day ago
Turkish Airlines
Sun, 26 Apr - Tue, 5 May
ORD
Chicago
LHR
London
S$1,041 Return, found 5 days ago
S$1,041
Return
found 5 days ago
Select Turkish Airlines flight, departing Sun, 26 Apr from Chicago to London, returning Tue, 5 May, priced at S$1,041 found 5 days ago
Finnair
Tue, 6 Oct - Tue, 13 Oct
ORD
Chicago
LHR
London
S$1,094 Return, found 3 days ago
S$1,094
Return
found 3 days ago
Select Finnair flight, departing Tue, 6 Oct from Chicago to London, returning Tue, 13 Oct, priced at S$1,094 found 3 days ago
Delta
Wed, 13 May - Mon, 18 May
ORD
Chicago
LHR
London
S$1,120 Return, found 2 days ago
S$1,120
Return
found 2 days ago
Select Delta flight, departing Wed, 13 May from Chicago to London, returning Mon, 18 May, priced at S$1,120 found 2 days ago
United
Tue, 6 Oct - Tue, 13 Oct
ORD
Chicago
LHR
London
S$1,131 Return, found 3 days ago
S$1,131
Return
found 3 days ago
Select United flight, departing Tue, 6 Oct from Chicago to London, returning Tue, 13 Oct, priced at S$1,131 found 3 days ago
Lufthansa
Tue, 6 Oct - Tue, 13 Oct
ORD
Chicago
LHR
London
S$1,134 Return, found 3 days ago
S$1,134
Return
found 3 days ago
Select Lufthansa flight, departing Tue, 6 Oct from Chicago to London, returning Tue, 13 Oct, priced at S$1,134 found 3 days ago

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

May is typically the cheapest month to fly

From S$727 - S$1,376 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$965. 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, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Return price
S$964
Distance
6307 km
Average flight time
14 hours 2 mins

Explore a world of travel with Expedia

*Available to Expedia members.