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

June
August
September
October
November
December
January
February
March
April

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

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

round Round Trip Fare
September

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

Cheaper Fare
£ 681

Cheapest Fare- Currently, this is the fare price based on the current demand.

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

Lufthansa
Lufthansa

London

06:30

London

London Heathrow Airport

Wed , 02 Sep 2026

12h 55m
ellipse
1 Stop

St Louis

13:25

St Louis

St Louis Lambert International Airport

Wed, 02 Sep 2026

£392
United Airlines
United Airlines

London

08:30

London

London Heathrow Airport

Wed , 02 Sep 2026

11h 32m
ellipse
1 Stop

St Louis

14:02

St Louis

St Louis Lambert International Airport

Wed, 02 Sep 2026

£401
United Airlines
United Airlines

London

12:15

London

London Heathrow Airport

Wed , 02 Sep 2026

12h 56m
ellipse
1 Stop

St Louis

19:11

St Louis

St Louis Lambert International Airport

Wed, 02 Sep 2026

£408
Lufthansa
Lufthansa

London

08:30

London

London Heathrow Airport

Wed , 02 Sep 2026

11h 32m
ellipse
1 Stop

St Louis

14:02

St Louis

St Louis Lambert International Airport

Wed, 02 Sep 2026

£431
Austrian Airlines
Austrian Airlines

London

16:00

London

London Heathrow Airport

Wed , 02 Sep 2026

13h 38m
ellipse
1 Stop

St Louis

23:38

St Louis

St Louis Lambert International Airport

Wed, 02 Sep 2026

£441
Aer Lingus
Aer Lingus

London

08:50

London

London Heathrow Airport

Wed , 02 Sep 2026

29h 34m
ellipse
2 Stop

St Louis

08:24

St Louis

St Louis Lambert International Airport

Thu, 03 Sep 2026

£445
Air France
Air France

London

10:45

London

London Heathrow Airport

Wed , 02 Sep 2026

11h 53m
ellipse
1 Stop

St Louis

16:38

St Louis

St Louis Lambert International Airport

Wed, 02 Sep 2026

£447
Air France
Air France

London

12:25

London

London Heathrow Airport

Wed , 02 Sep 2026

34h 27m
ellipse
1 Stop

St Louis

16:52

St Louis

St Louis Lambert International Airport

Thu, 03 Sep 2026

£447
American Airlines
American Airlines

London

09:45

London

London Heathrow Airport

Wed , 02 Sep 2026

12h 39m
ellipse
1 Stop

St Louis

16:24

St Louis

St Louis Lambert International Airport

Wed, 02 Sep 2026

£453
American Airlines
American Airlines

London

15:15

London

London Heathrow Airport

Wed , 02 Sep 2026

14h 59m
ellipse
1 Stop

St Louis

00:14

St Louis

St Louis Lambert International Airport

Thu, 03 Sep 2026

£457
Delta Airlines
Delta Airlines

London

06:30

London

London Heathrow Airport

Wed , 02 Sep 2026

14h 40m
ellipse
2 Stop

St Louis

15:10

St Louis

St Louis Lambert International Airport

Wed, 02 Sep 2026

£587
ellipse

Find the Lowest Airfare London to St Louis

Cheapest Fares
Fare
Date
Airline
Departure
Lowest Airfare
£681
24 June 2026
Lufthansa
06:30 AM
Cheapest Airfare Within 30 Days
£681
24 June 2026
Lufthansa
06:30 AM
Cheapest Airfare Within 90 Days
£436
01 September 2026
Lufthansa
06:30 AM
ellipse

Early Morning Flight London to St Louis

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Cheapest Flight
Found
£392
group
Average Flight
Time
12h 55m
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Date/Time
02 Sep 2026
06:30 AM
plane
Airlines
Lufthansa
Ellipse

Late Night Flight London to St Louis

wallet
Cheapest Flight
Found
£441
group
Average Flight
Time
13h 38m
calendar
Date/Time
02 Sep 2026
16:00 PM
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 10:25.

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 10:25 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 Lufthansa, United Airlines, Austrian Airlines, Aer Lingus

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?