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London To St Louis 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

Economy

September
October
November
December
January
February
March
April
August

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

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

round Round Trip Fare
November

November - 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 London To St Louis

Cheapest
United Airlines
United Airlines

LHR

09:30

London

London Heathrow Airport

Thu , 04 Sep 2025

16h 27m
ellipse
1 Stop

STL

19:57

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£676
United Airlines
United Airlines

LHR

08:30

London

London Heathrow Airport

Thu , 04 Sep 2025

12h 48m
ellipse
1 Stop

STL

15:18

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£681
Air Canada
Air Canada

LHR

09:30

London

London Heathrow Airport

Thu , 04 Sep 2025

16h 27m
ellipse
1 Stop

STL

19:57

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£1148
Austrian Airlines
Austrian Airlines

LHR

11:05

London

London Heathrow Airport

Thu , 04 Sep 2025

12h 47m
ellipse
1 Stop

STL

17:52

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£1152
Austrian Airlines
Austrian Airlines

LHR

12:00

London

London Heathrow Airport

Thu , 04 Sep 2025

13h 39m
ellipse
1 Stop

STL

19:39

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£1685
Lufthansa
Lufthansa

LHR

19:30

London

London Heathrow Airport

Thu , 04 Sep 2025

24h 00m
ellipse
1 Stop

STL

13:30

St Louis

St Louis Lambert International Airport

Fri, 05 Sep 2025

£1727
American Airlines
American Airlines

LHR

09:15

London

London Heathrow Airport

Thu , 04 Sep 2025

12h 37m
ellipse
1 Stop

STL

15:52

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£1744
United Airlines
United Airlines

LHR

08:30

London

London Heathrow Airport

Thu , 04 Sep 2025

11h 49m
ellipse
1 Stop

STL

14:19

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£2208
Lufthansa
Lufthansa

LHR

08:30

London

London Heathrow Airport

Thu , 04 Sep 2025

11h 49m
ellipse
1 Stop

STL

14:19

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£2208
Austrian Airlines
Austrian Airlines

LHR

08:30

London

London Heathrow Airport

Thu , 04 Sep 2025

11h 49m
ellipse
1 Stop

STL

14:19

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£2208
Air Canada
Air Canada

LHR

08:30

London

London Heathrow Airport

Thu , 04 Sep 2025

12h 48m
ellipse
1 Stop

STL

15:18

St Louis

St Louis Lambert International Airport

Thu, 04 Sep 2025

£2209
ellipse

Early Morning Flight London to St Louis

wallet
Cheapest Flight
Found
£2209
group
Average Flight
Time
12h 48m
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Date/Time
04 Sep 2025
08:30 AM
plane
Airlines
Air Canada
Ellipse

Late Night Flight London to St Louis

wallet
Cheapest Flight
Found
£1685
group
Average Flight
Time
13h 39m
calendar
Date/Time
04 Sep 2025
12:00 AM
plane
Airlines
Austrian Airlines

Flights from London to St Louis with Easemytrip

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 08:16.

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

Travel Overview: London to St Louis

Flight Details Information
Route Distance 6741 km
Average Flight Time 08:16 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 United Airlines, Air Canada, Austrian Airlines, 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 London to St Louis

Are there direct flights from London to St Louis?

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?