Cheap Flights from Chicago (ORD) to London (LHR) from HK$3,116~

View HK$3,116 flight on Mon, 16 Mar 2026Opens in a new window

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

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Find Cheap Flights from Chicago (ORD) to London (LHR)

Prices were available within the past 7 days and start at HK$3,116 for one-way flights and HK$4,243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 1 Apr - Tue, 14 Apr
ORD
Chicago
LHR
London
HK$4,243 Return, found 4 days ago
HK$4,243
Return
found 4 days ago
Select Icelandair flight, departing Wed, 1 Apr from Chicago to London, returning Tue, 14 Apr, priced at HK$4,243 found 4 days ago
United
Mon, 9 Mar - Mon, 23 Mar
ORD
Chicago
LHR
London
HK$4,900 Return, found 17 hours ago
HK$4,900
Return
found 17 hours ago
Select United flight, departing Mon, 9 Mar from Chicago to London, returning Mon, 23 Mar, priced at HK$4,900 found 17 hours ago
Air Canada
Sun, 1 Mar - Thu, 19 Mar
ORD
Chicago
LHR
London
HK$4,901 Return, found 4 days ago
HK$4,901
Return
found 4 days ago
Select Air Canada flight, departing Sun, 1 Mar from Chicago to London, returning Thu, 19 Mar, priced at HK$4,901 found 4 days ago
United
Mon, 2 Mar - Thu, 19 Mar
ORD
Chicago
LHR
London
HK$4,904 Return, found 4 days ago
HK$4,904
Return
found 4 days ago
Select United flight, departing Mon, 2 Mar from Chicago to London, returning Thu, 19 Mar, priced at HK$4,904 found 4 days ago
United
Wed, 11 Mar - Thu, 19 Mar
ORD
Chicago
LHR
London
HK$4,907 Return, found 4 days ago
HK$4,907
Return
found 4 days ago
Select United flight, departing Wed, 11 Mar from Chicago to London, returning Thu, 19 Mar, priced at HK$4,907 found 4 days ago
United
Mon, 9 Feb - Tue, 17 Feb
ORD
Chicago
LHR
London
HK$4,910 Return, found 1 day ago
HK$4,910
Return
found 1 day ago
Select United flight, departing Mon, 9 Feb from Chicago to London, returning Tue, 17 Feb, priced at HK$4,910 found 1 day ago
United
Wed, 11 Mar - Wed, 25 Mar
ORD
Chicago
LHR
London
HK$4,914 Return, found 4 days ago
HK$4,914
Return
found 4 days ago
Select United flight, departing Wed, 11 Mar from Chicago to London, returning Wed, 25 Mar, priced at HK$4,914 found 4 days ago
Scandinavian Airlines
Fri, 20 Feb - Mon, 23 Feb
ORD
Chicago
LHR
London
HK$4,943 Return, found 3 days ago
HK$4,943
Return
found 3 days ago
Select Scandinavian Airlines flight, departing Fri, 20 Feb from Chicago to London, returning Mon, 23 Feb, priced at HK$4,943 found 3 days ago
Virgin Atlantic
Mon, 16 Mar - Thu, 2 Apr
ORD
Chicago
LHR
London
HK$5,037 Return, found 4 days ago
HK$5,037
Return
found 4 days ago
Select Virgin Atlantic flight, departing Mon, 16 Mar from Chicago to London, returning Thu, 2 Apr, priced at HK$5,037 found 4 days ago
United
Wed, 11 Mar - Tue, 24 Mar
ORD
Chicago
LHR
London
HK$5,129 Return, found 4 days ago
HK$5,129
Return
found 4 days ago
Select United flight, departing Wed, 11 Mar from Chicago to London, returning Tue, 24 Mar, priced at HK$5,129 found 4 days ago

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

November is typically the cheapest month to fly

From HK$3,492 - HK$5,927 per traveller.
Chicago to London route information
Origin airport
O'Hare Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Return price
HK$4,243
Distance
6307 km
Average flight time
13 hours 54 mins

Flights from Chicago to London

Book cheap flights from Chicago (ORD) to London (LHR) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Chicago (ORD) to London (LHR) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be 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 (ORD) to London (LHR) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your London flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in London and things to do in London for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to London more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to London is HK$3,116 now!

 

Frequently asked questions

How much is a flight from O'Hare Intl. Airport (ORD) to London Heathrow?
If you're traveling from O'Hare Intl. Airport (ORD) to Heathrow Airport (LHR), round-trip flights start from HK$4,243. 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 canceled 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 kilometers 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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