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Uncover the best deals on St Louis to London flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest STL - LHR Flights
Useful information for finding best airline tickets from Lambert St Louis International to London Heathrow on your next trip.
Cheapest Round Trip Flight
$1301
Air Canada
• 1 stop
• 23h 25m
Jul 03 – Jul 06
The cheapest round trip flight from St Louis to London (STL-LHR-STL) is currently $1301
Fastest Flight
16h 59m
The fastest nonstop flight from St Louis to London (STL-LHR) takes 16h 59m
Top Airlines Flying from St Louis to London
Latest Flight Deals from St Louis (STL) to London (LHR)
Compare and book low fare round-trip air tickets from St Louis to London. Ideal for travelers with confirmed return itineraries.
Jul 03 - Jul 06, Economy
St Louis → London
23h 25m
2:40 PM - 10:45 AM • 1 stop
St Louis → London
45h 22m
10:45 PM - 8:07 PM • 3 stops
Air Canada
Jul 03 - Jul 06, Economy
St Louis → London
23h 22m
1:38 PM - 9:40 AM • 1 stop
St Louis → London
23h 38m
11:05 AM - 7:23 PM • 1 stop
United Airlines
Jul 03 - Jul 06, Economy
St Louis → London
44h 10m
11:30 AM - 8:20 PM • 2 stops
St Louis → London
48h 25m
9:25 PM - 8:30 PM • 2 stops
Southwest Airlines
Jul 03 - Jul 06, Economy
St Louis → London
18h 58m
3:22 PM - 9:00 AM • 1 stop
St Louis → London
45h 55m
3:30 PM - 1:25 PM • 1 stop
United Airlines
Jul 03 - Jul 06, Economy
St Louis → London
57h 10m
2:00 PM - 6:30 AM • 3 stops
St Louis → London
60h 59m
5:00 PM - 11:59 PM • 1 stop
Southern Airways
FAQs on St Louis to London Flights
What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to LHR?
The most popular airline flying from St Louis to London are
Can I fly from STL to LHR non-stop?
NO
Which airlines fly nonstop between St Louis and London?
The non-stop flights between St Louis and London are .
What’s the earliest departure time from STL to LHR Airport?
The earliest flight leaves STL at 11:30 am and lands in LHR - London Heathrow
What are the airports in London?
LHR
Can I make changes to my St Louis to London flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from STL to LHR?
Read the fare rules of the St Louis to London air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from St Louis and London?
operate flights between St Louis and London
How long does a flight from St Louis to London take?
It takes approximately 9 hour to fly non-stop from STL to LHR, which is 4200.25 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to London (LHR) ?
In the past couple of days, the cheapest tickets to LHR from STL were found on UA : USD 1647
Do I need a passport to fly between STL and LHR?
Yes
What’s the latest departure time from STL to LHR ?
The last flight leaves STL at 3:22 pm
St Louis (STL) to London (LHR): Airport Information
| Origin Airport | Lambert St Louis International , St Louis, US |
| Destination Airport | London Heathrow , London, GB |
| Distance | 4200 miles |
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