Find cheap flights from London to St. Louis

LON - STL

Find cheap flights from London to St. Louis

Return
Economy
London (LON)
Lambert-St Louis
Fri 3/7
Fri 10/7
Any month
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Good to know

Low season

March Best time to beat the crowds (17% less expensive on average)

High season

July Most popular time to fly (24% more expensive on average)

Average price of a return ticket

£773 (avg. price over the last 2 weeks)

Good deal for a return ticket

£704 or less

When to book flights from London to St. Louis

Estimated return price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for £563 or less.
  • The cheapest flight from London to St. Louis was found, on average, 89 days before departure.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly is March.
  • Morning departure is around 50% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking London to St. Louis flights

How long does a flight from London to St. Louis take?

Which airlines provide the cheapest flights from London to St. Louis?

What’s the cheapest day of the week to fly from London to St. Louis?

Which airports will I be using when flying from London to St. Louis?

How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

Top 5 airlines serving London to Lambert-St Louis

Scores according to KAYAK customer reviews

8.1
Virgin Atlantic
Overall score based on 1,565 reviews
8.3
Boarding
7.8
Comfort
8.6
Crew
8.0
Entertainment
7.8
Food
Airline reviews
Read more about Virgin Atlantic

Book cheap flights from London to St. Louis (return)

Airports
Origin
London
£489
only
£489
£785
only
£785
£777
only
£777
Destination
St. Louis
£489
only
£489
Wed, 2 Dec
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
15h 05m
Wed, 9 Dec
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
13h 32m
£489
Trip: 8 days
Based on null reviews
Sat, 14 Nov
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
12h 08m
Mon, 30 Nov
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
11h 26m
£533
Trip: 17 days
Based on null reviews
Wed, 2 Dec
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
26h 33m
Wed, 9 Dec
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
16h 25m
£567
Trip: 8 days
Based on null reviews
Sat, 14 Nov
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
14h 24m
Mon, 30 Nov
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
14h 12m
£721
Trip: 17 days
Based on null reviews
Wed, 2 Dec
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
15h 20m
Wed, 9 Dec
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
14h 50m
£728
Trip: 8 days
Based on null reviews
Sat, 14 Nov
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
13h 37m
Mon, 30 Nov
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
11h 00m
£735
Trip: 17 days
Based on null reviews
Tue, 22 Sep
STN
London Stansted Airport
STL
St. Louis Lambert Airport
32h 07m
Tue, 20 Oct
STL
St. Louis Lambert Airport
STN
London Stansted Airport
38h 03m
£777
Trip: 29 days
Based on null reviews
Wed, 2 Dec
LCY
London City
STL
St. Louis Lambert Airport
15h 57m
Wed, 9 Dec
STL
St. Louis Lambert Airport
LCY
London City
14h 20m
£785
Trip: 8 days
Based on null reviews
Mon, 23 Nov
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
18h 03m
Fri, 27 Nov
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
18h 43m
£512
Trip: 5 days
Based on null reviews
Sat, 14 Nov
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
15h 05m
Mon, 30 Nov
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
13h 32m
£516
Trip: 17 days
Based on null reviews
Sat, 17 Oct
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
12h 14m
Fri, 23 Oct
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
11h 31m
£583
Trip: 7 days
Based on null reviews
Fri, 11 Sep
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
13h 59m
Thu, 24 Sep
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
10h 28m
£622
Trip: 14 days
Based on null reviews
Mon, 7 Sep
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
17h 17m
Sat, 12 Sep
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
21h 50m
£530
Trip: 6 days
Based on null reviews
Mon, 7 Sep
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
28h 49m
Sat, 12 Sep
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
30h 56m
£632
Trip: 6 days
Based on null reviews
Wed, 12 Aug
LCY
London City
STL
St. Louis Lambert Airport
16h 40m
Tue, 18 Aug
STL
St. Louis Lambert Airport
LCY
London City
14h 20m
£1392
Trip: 7 days
Based on null reviews
Mon, 28 Sep
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
12h 13m
Mon, 12 Oct
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
11h 31m
£633
Trip: 15 days
Based on null reviews
Mon, 28 Sep
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
13h 55m
Mon, 12 Oct
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
11h 32m
£542
Trip: 15 days
Based on null reviews
Fri, 11 Sep
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
16h 35m
Fri, 18 Sep
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
13h 22m
£731
Trip: 8 days
Based on null reviews
Sat, 14 Nov
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
12h 20m
Mon, 30 Nov
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
11h 29m
£748
Trip: 17 days
Based on null reviews
Tue, 22 Sep
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
12h 13m
Tue, 20 Oct
STL
St. Louis Lambert Airport
LHR
London Heathrow Airport
11h 31m
£637
Trip: 29 days
Based on null reviews
Show more results

Book cheap flights from London to St. Louis (one-way)

Airports
Origin
London
£615
only
£615
£555
only
£555
£1054
only
£1054
£434
only
£434
£410
only
£410
Destination
St. Louis
£410
only
£410
Tue, 28 Jul
STN
London Stansted Airport
STL
St. Louis Lambert Airport
58h 02m
£410
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
37h 32m
£833
Based on null reviews
Tue, 28 Jul
LGW
London Gatwick Airport
STL
St. Louis Lambert Airport
56h 22m
£434
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
30h 54m
£940
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
18h 14m
£984
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
37h 35m
£1038
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
13h 17m
£1213
Based on null reviews
Tue, 28 Jul
LTN
London Luton Airport
STL
St. Louis Lambert Airport
53h 21m
£555
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
17h 10m
£1240
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
17h 10m
£1322
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
15h 59m
£1348
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
33h 30m
£615
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
12h 09m
£1636
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
16h 55m
£1765
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
14h 44m
£963
Based on null reviews
Tue, 28 Jul
LCY
London City
STL
St. Louis Lambert Airport
20h 19m
£1054
Based on null reviews
Tue, 28 Jul
LCY
London City
STL
St. Louis Lambert Airport
16h 15m
£1254
Based on null reviews
Tue, 28 Jul
LCY
London City
STL
St. Louis Lambert Airport
17h 05m
£1336
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
18h 04m
£1029
Based on null reviews
Tue, 28 Jul
LHR
London Heathrow Airport
STL
St. Louis Lambert Airport
16h 54m
£1029
Based on null reviews
Show more results
*
Prices are per person, are for e–tickets and include all taxes & fees in GBP.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller
At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.

We aggregate tons of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we don't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car hires can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find on occasion that certain prices are no longer available.

More questions or if you have a bad price to report to us
Please send us an and someone from our team will get back to you promptly.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
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