€465 Cheap Flights London to St. Louis (LHR-STL)

View €465 flight on Wed, 9 Sept 2026Opens in a new window

Flight 1

Popular airlines from Heathrow Airport (LHR) to St. Louis Lambert Intl. Airport (STL)

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Cheap flights from London to St. Louis (LHR-STL)

Prices were available within the past 7 days and start at €465 for one-way flights and €771 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€771 Return, found 2 days ago
€771
Return
found 2 days ago
Select Finnair flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €771 found 2 days ago
Finnair
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€772 Return, found 2 days ago
€772
Return
found 2 days ago
Select Finnair flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €772 found 2 days ago
American Airlines
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€773 Return, found 2 days ago
€773
Return
found 2 days ago
Select American Airlines flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €773 found 2 days ago
American Airlines
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€775 Return, found 2 days ago
€775
Return
found 2 days ago
Select American Airlines flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €775 found 2 days ago
American Airlines
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€778 Return, found 2 days ago
€778
Return
found 2 days ago
Select American Airlines flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €778 found 2 days ago
American Airlines
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€780 Return, found 2 days ago
€780
Return
found 2 days ago
Select American Airlines flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €780 found 2 days ago
British Airways
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€790 Return, found 2 days ago
€790
Return
found 2 days ago
Select British Airways flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €790 found 2 days ago
American Airlines
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€799 Return, found 2 days ago
€799
Return
found 2 days ago
Select American Airlines flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €799 found 2 days ago
KLM
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€815 Return, found 2 days ago
€815
Return
found 2 days ago
Select KLM flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €815 found 2 days ago
Air France
Wed, 9 Sept - Wed, 16 Sept
LHR
London
STL
St. Louis
€817 Return, found 2 days ago
€817
Return
found 2 days ago
Select Air France flight, departing Wed, 9 Sept from London to St. Louis, returning Wed, 16 Sept, priced at €817 found 2 days ago

Frequently asked questions

How much is a flight from Heathrow Airport (LHR) to Lambert Field?
The lowest price advertised for a round-trip flight from London Heathrow to Lambert-St. Louis Intl. Airport (STL) is €771. But you better move fast. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Heathrow Airport (LHR) to Lambert-St. Louis Intl. Airport (STL)?
This differs between airlines, as each has its own terms and conditions. Head to the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Heathrow Airport to St. Louis Lambert International Airport 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 LHR to STL flights, you'll see a "no change fees" filter for you to select.
How far is the flight from LHR to Lambert-St. Louis Intl. Airport (STL)?
The distance is around 6,800 kilometres. Travel pillow? Check. Toiletries? Check. We suggest you pack all the essentials for this long-haul Hounslow to St. Louis flight.
Which airlines fly direct from LHR to Lambert-St. Louis Intl. Airport (STL)?
Flying directly between Heathrow Airport (LHR) and Lambert Field isn't possible at this time. However, you'll still be able to book a flight to St. Louis with at least one stop.
Are Heathrow Airport (LHR) to Lambert-St. Louis Intl. Airport (STL) flight tickets cheaper when they're purchased at the last minute?
It is possible to find a fantastic last-minute deal from London Heathrow to Lambert Field, but it's also possible to miss out altogether! As many airlines advertise prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to book when you spot a good bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can rest easy knowing you're always getting the latest offers.

Travel information

Origin airport
Heathrow
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, United, Virgin Atlantic
Return price
€771
Distance
6703 km

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