£775 Cheap Flights from London (LHR) to St. Louis (STL)

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Cheap Flights from London (LHR) to St. Louis (STL)

Prices were available within the past 7 days and start at £775 for one-way flights and £695 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Wed, 11 Sep - Wed, 2 Oct
LHR
London
STL
St. Louis
£695 Return, found 13 hours ago
£695
Return
found 13 hours ago
Select Iberia flight, departing Wed, 11 Sep from London to St. Louis, returning Wed, 2 Oct, priced at £695 found 13 hours ago
Virgin Atlantic
Wed, 8 May - Mon, 13 May
LHR
London
STL
St. Louis
£708 Return, found 6 hours ago
£708
Return
found 6 hours ago
Select Virgin Atlantic flight, departing Wed, 8 May from London to St. Louis, returning Mon, 13 May, priced at £708 found 6 hours ago
British Airways
Wed, 8 May - Mon, 13 May
LHR
London
STL
St. Louis
£708 Return, found 6 hours ago
£708
Return
found 6 hours ago
Select British Airways flight, departing Wed, 8 May from London to St. Louis, returning Mon, 13 May, priced at £708 found 6 hours ago
Virgin Atlantic
Wed, 8 May - Mon, 13 May
LHR
London
STL
St. Louis
£719 Return, found 6 hours ago
£719
Return
found 6 hours ago
Select Virgin Atlantic flight, departing Wed, 8 May from London to St. Louis, returning Mon, 13 May, priced at £719 found 6 hours ago
KLM
Wed, 6 Nov - Tue, 12 Nov
LHR
London
STL
St. Louis
£720 Return, found 9 hours ago
£720
Return
found 9 hours ago
Select KLM flight, departing Wed, 6 Nov from London to St. Louis, returning Tue, 12 Nov, priced at £720 found 9 hours ago
Air France
Wed, 8 May - Mon, 13 May
LHR
London
STL
St. Louis
£724 Return, found 6 hours ago
£724
Return
found 6 hours ago
Select Air France flight, departing Wed, 8 May from London to St. Louis, returning Mon, 13 May, priced at £724 found 6 hours ago
Air France
Wed, 6 Nov - Tue, 12 Nov
LHR
London
STL
St. Louis
£724 Return, found 9 hours ago
£724
Return
found 9 hours ago
Select Air France flight, departing Wed, 6 Nov from London to St. Louis, returning Tue, 12 Nov, priced at £724 found 9 hours ago
Air France
Wed, 8 May - Mon, 13 May
LHR
London
STL
St. Louis
£727 Return, found 6 hours ago
£727
Return
found 6 hours ago
Select Air France flight, departing Wed, 8 May from London to St. Louis, returning Mon, 13 May, priced at £727 found 6 hours ago
KLM
Wed, 8 May - Mon, 13 May
LHR
London
STL
St. Louis
£739 Return, found 6 hours ago
£739
Return
found 6 hours ago
Select KLM flight, departing Wed, 8 May from London to St. Louis, returning Mon, 13 May, priced at £739 found 6 hours ago
Finnair
Wed, 1 May - Sun, 5 May
LHR
London
STL
St. Louis
£740 Return, found 10 hours ago
£740
Return
found 10 hours ago
Select Finnair flight, departing Wed, 1 May from London to St. Louis, returning Sun, 5 May, priced at £740 found 10 hours ago
Flight from London to St. Louis route information
Origin airport
Heathrow
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, KLM, Lufthansa, Turkish Airlines, United, Virgin Atlantic
Return price
£694
Distance
6703 km

Compare flights from London to St. Louis easily and book in confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to St. Louis. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Lambert-St. Louis Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Lambert-St. Louis Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Heathrow (LHR) to Lambert-St. Louis Intl. (STL) 

The easiest way to view the best deals on flights from London to St. Louis today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Lambert-St. Louis Intl. start at just £695 and range up to £740.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and St. Louis
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to St. Louis flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Lambert-St. Louis Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

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 £695. 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.
London Airports

London

Gatwick to St. Louis
£799.18
London City to St. Louis
£822.89
*Available to Expedia members.