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St Louis To London Flights

  • One-Way
  • Round-Trip
  • Multi-City

From

Indira Gandhi International Airport

To

Chhatrapati Shivaji International Airport

DEPARTURE DATE

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Friday

Return Date

Book a round trip
to save more

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TRAVELLER & CLASS

1 Traveller(s)

Economy

August
September
October
November
December
January
February
March
April

August is by far the best month, wherein you can get cheapest flights for St Louis to London. Meanwhile, August 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.

Things to know
arrow One Way Fare
August

August- During this month the footfall is less so, the flight is gradually inexpensive.

round Round Trip Fare
August

August - is the cheapest month to book round trip flights.

disclDisclaimer - 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.

Best Flight From St Louis To London

Cheapest
United Airlines
United Airlines

STL

13:27

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

11h 28m
ellipse
1 Stop

LHR

05:55

London

London Heathrow Airport

Thu, 30 Oct 2025

£506
United Airlines
United Airlines

STL

16:15

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

11h 15m
ellipse
1 Stop

LHR

08:30

London

London Heathrow Airport

Thu, 30 Oct 2025

£511
Delta Airlines
Delta Airlines

STL

17:45

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

10h 05m
ellipse
1 Stop

LHR

08:50

London

London Heathrow Airport

Thu, 30 Oct 2025

£520
Virgin Atlantic Airways
Virgin Atlantic Airways

STL

19:05

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

11h 35m
ellipse
1 Stop

LHR

11:40

London

London Heathrow Airport

Thu, 30 Oct 2025

£520
Lufthansa
Lufthansa

STL

16:45

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

13h 00m
ellipse
1 Stop

LHR

10:45

London

London Heathrow Airport

Thu, 30 Oct 2025

£520
Air Canada
Air Canada

STL

16:15

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

11h 15m
ellipse
1 Stop

LHR

08:30

London

London Heathrow Airport

Thu, 30 Oct 2025

£525
Lufthansa
Lufthansa

STL

16:45

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

12h 00m
ellipse
1 Stop

LHR

09:45

London

London Heathrow Airport

Thu, 30 Oct 2025

£534
American Airlines
American Airlines

STL

20:01

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

10h 29m
ellipse
1 Stop

LHR

11:30

London

London Heathrow Airport

Thu, 30 Oct 2025

£671
British Airways
British Airways

STL

14:40

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

12h 10m
ellipse
1 Stop

LHR

07:50

London

London Heathrow Airport

Thu, 30 Oct 2025

£858
British Airways
British Airways

STL

14:40

St Louis

St Louis Lambert International Airport

Wed , 29 Oct 2025

10h 55m
ellipse
1 Stop

LHR

06:35

London

London Heathrow Airport

Thu, 30 Oct 2025

£997
Air Canada
Air Canada

STL

07:30

St Louis

St Louis Lambert International Airport

Wed , 21 May 2025

22h 20m
ellipse
1 Stop

LHR

11:50

London

London Heathrow Airport

Thu, 22 May 2025

£691
ellipse

Early Morning Flight St Louis to London

wallet
Cheapest Flight
Found
£506
group
Average Flight
Time
11h 28m
calendra
Date/Time
29 Oct 2025
13:27 PM
plane
Airlines
United Airlines
Ellipse

Late Night Flight St Louis to London

wallet
Cheapest Flight
Found
£671
group
Average Flight
Time
10h 29m
calendar
Date/Time
29 Oct 2025
20:01 PM
plane
Airlines
American Airlines

Flights from St Louis to London with Easemytrip

Flying from St Louis to London 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 St Louis to London is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between St Louis Lambert International Airport (STL) and London Heathrow Airport (LHR). You can expect a flight distance of approximately 6741 km, and most direct services cover it in around 20:44.

Let’s take a closer look at everything you need to know before booking your flight from St Louis to London.

Travel Overview: St Louis to London

Flight Details Information
Route Distance 6741 km
Average Flight Time 20:44 hrs
Departure Airport St Louis Lambert International Airport (STL)
Arrival Airport London Heathrow Airport (LHR)
Cabin Classes Available Economy Class, Premium Economy, Business Class, First Class
Direct Flights NO
Common Airlines United Airlines, Delta Airlines, Virgin Atlantic Airways, Lufthansa

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.

Read more
FAQs about flights from St Louis to London

Are there direct flights from St Louis to London?

How early should I book?

Which airlines offer the most frequent service?

Is it cheaper to fly round-trip or one-way?

Can I mix airlines for departure and return?

Is it possible to change or cancel my booking after confirmation?

Can I book additional baggage or in-flight services in advance?