November is by far the best month, wherein you can get cheapest flights for London to St Louis. Meanwhile, October is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
November- During this month the footfall is less so, the flight is gradually inexpensive.
November - is the cheapest month to book round trip flights.
Cheapest Fare- Currently, this is the fare price based on the current demand.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

LHR
12:35
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
19:09
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
11:55
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
20:51
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
12:20
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
20:23
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
12:35
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
20:26
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
12:30
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
23:41
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
09:20
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
17:47
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
09:20
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
17:47
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
15:45
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
23:54
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
12:35
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
19:09
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
12:35
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
19:09
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025

LHR
11:00
London
London Heathrow Airport
Mon , 27 Oct 2025

STL
19:09
St Louis
St Louis Lambert International Airport
Mon, 27 Oct 2025











Flying from London to St Louis has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between London to St Louis is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between London Heathrow Airport (LHR) and St Louis Lambert International Airport (STL). You can expect a flight distance of approximately 6741 km, and most direct services cover it in around 08:05.
Let’s take a closer look at everything you need to know before booking your flight from London to St Louis.
| Flight Details | Information |
|---|---|
| Route Distance | 6741 km |
| Average Flight Time | 08:05 hrs |
| Departure Airport | London Heathrow Airport (LHR) |
| Arrival Airport | St Louis Lambert International Airport (STL) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | NO |
| Common Airlines | American Airlines, Finnair, Delta Airlines, Iberia |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.