Good to Know: LON to STL Flights
Useful information for finding cheap flights from London All Airport to Lambert St Louis International and booking your next trip
Cheapest Round Trip Flight
£2220
Delta Airlines• 1 stop • 43h 29mAug 08 – Aug 18
The cheapest round trip flight from London All Airport to Lambert St Louis International is currently £2220
Fastest Flight
20h 54m
The fastest nonstop flight from London All Airport to Lambert St Louis International takes 20h 54m
Best Flight Deals from London to St Louis
Explore the lowest round-trip fares from London to St Louis. We've compared hundreds of airlines and travel sites so you don't have to.
Aug 08 - Aug 18, Economy
London → St Louis
43h 29m
12:25 PM - 8:34 AM • 1 stop
London → St Louis
20h 40m
2:15 PM - 8:55 AM • 1 stop
Delta Airlines
Aug 08 - Aug 18, Economy
London → St Louis
45h 48m
11:45 AM - 9:33 AM • 1 stop
London → St Louis
20h 41m
6:49 PM - 1:30 PM • 1 stop
Delta Airlines
Aug 08 - Aug 18, Economy
London → St Louis
27h 35m
12:25 PM - 11:20 PM • 1 stop
London → St Louis
18h 39m
1:26 PM - 6:45 AM • 1 stop
Delta Airlines
Aug 08 - Aug 18, Economy
London → St Louis
20h 54m
12:15 PM - 7:09 PM • 1 stop
London → St Louis
16h 56m
7:59 PM - 12:15 PM • 1 stop
American Airlines
Aug 08 - Aug 18, Economy
London → St Louis
23h 37m
12:45 PM - 9:02 PM • 1 stop
London → St Louis
18h 28m
1:42 PM - 6:50 AM • 1 stop
Finnair
Whether you're moving or just visiting, here are some of the best one-way flight options from LON to STL—searched and filtered with flexibility in mind.
Need to fly soon? We've surfaced some of the most affordable last-minute flights from London to St Louis, ideal for urgent plans or spontaneous trips.
Aug 08 - Aug 18, Economy
London → St Louis
43h 29m
12:25 PM - 8:34 AM • 1 stop
London → St Louis
20h 40m
2:15 PM - 8:55 AM • 1 stop
Delta Airlines
Aug 08 - Aug 18, Economy
London → St Louis
45h 48m
11:45 AM - 9:33 AM • 1 stop
London → St Louis
20h 41m
6:49 PM - 1:30 PM • 1 stop
Delta Airlines
Aug 08 - Aug 18, Economy
London → St Louis
27h 35m
12:25 PM - 11:20 PM • 1 stop
London → St Louis
18h 39m
1:26 PM - 6:45 AM • 1 stop
Delta Airlines
Aug 08 - Aug 18, Economy
London → St Louis
20h 54m
12:15 PM - 7:09 PM • 1 stop
London → St Louis
16h 56m
7:59 PM - 12:15 PM • 1 stop
American Airlines
Aug 08 - Aug 18, Economy
London → St Louis
23h 37m
12:45 PM - 9:02 PM • 1 stop
London → St Louis
18h 28m
1:42 PM - 6:50 AM • 1 stop
Finnair
Looking for the fastest way to St Louis? These direct flight options from LON to STL offer both convenience and value—no layovers, just straight to your destination.
Flights from London to St Louis
| Origin Airport | London All Airport, London, GB |
| Destination Airport | Lambert St Louis International , St Louis, US |
| Distance | miles |
More Flight Options for London (LON) and St Louis (STL)
Why Fareleaders for LON to STL Flights
Lowest Prices
Uncover the best deals on LON to STL flights by comparing fares from hundreds of airlines and agencies.
New Deals Everyday
Get the best prices on LON to STL flights—we update our fares daily so you never miss a saving.
Best Travel Options
Compare hundreds of LON to STL flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the London (LON) to St Louis (STL)
Terms and Conditions*