Important: This destination may have COVID-19 travel restrictions in place, including specific restrictions for lodging. Check any national, local and health advisories for this destination before you book.

Cheap Flights from London (LON) to St. Louis (STL) from £651

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

Prices were available within the past 7 days and starts at £651 for one-way flights and £461 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Qatar Airways
American Airlines
United
Lufthansa
Delta
United
Aer Lingus
American Airlines
American Airlines
Aer Lingus
Qatar Airways
Qatar Airways
Qatar Airways
Aer Lingus
Aer Lingus
Aer Lingus
Delta
Lufthansa
KLM
Flight from London to St. Louis route information
Origin AirportHeathrow
Destination AirportLambert-St. Louis Intl.
Airlines ServingAer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, United, Virgin Atlantic
Flight Price£461
Distance6703 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 LON-All Airports 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 LON-All Airports ( LON) 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 LON-All Airports to Lambert-St. Louis Intl. start at just £461 and range up to £701.  

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 October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why book your London to St. Louis flights with Expedia?  

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from LON-All Airports 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.