Cheap flights from London to St. Louis

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The best prices from London to Lambert-St Louis are usually found in January or September, booked 56 days in advance, depart on a Wednesday or Friday and return on a Wednesday

How to find the cheapest flight from
London (LON) to St. Louis (STL)

All the information you need to plan the best LON to STL flight in 2022: compare London to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.
LON - STL
Price
£684 - £1,033
STL
Temperature
0 - 27 °C
STL
Rainfall
56 - 119 mm

Popular in

July

High demand for flights, 21% potential price rise

Cheapest in

January

Best time to find cheap flights, 16% potential price drop

Round-trip from

£546

From London (LON) to Lambert-St Louis

One-way from

£317

One-way flight from London (LON) to Lambert-St Louis

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from London to St. Louis?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 11%.

How far in advance should I book a flight from London to St. Louis?

Users have found that booking a flight from London to St. Louis at least 57 days early can save you up to 14% on average compared to booking a flight this week. If booking 57 days before your flight isn’t an option for you, users have found flights from London to St. Louis for as little as £676 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £723 for flights departing within the next 3 days.

When is the cheapest time to fly from London to St. Louis (LON - STL)?

It’s typically best to fly out from London to St. Louis in the afternoon. Doing so could potentially save you 22% on the flight price compared to flying in the evening, which is usually more expensive.

Cheap flights from London to St. Louis in May, June 2022

The best prices found for LON to STL flights in May, June
25 May - 1 Jun
£585pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow
6 Jun - 11 Jun
£589pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow
29 May - 4 Jun
£597pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow

London to St. Louis 2022 flight deals

Cheap flights to St. Louis from London found for this year
23 May - 30 May
£562pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow
19 Nov - 26 Nov
£577pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow
25 May - 1 Jun
£585pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow

Last-minute flights from London to St. Louis

Late deals on return flights to St. Louis from London, departing today and this week
30 May - 4 Jun
£621pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow
4 Jun - 9 Jun
£622pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow
1 Jun - 20 Jun
£650pp
LHR
London Heathrow
Finnair
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Finnair
 
1 STOP
LHR
London Heathrow

One-way flights to Lambert-St Louis from London

The cheapest one-way flights from London to St. Louis
12:30 - 17:20
Multiple Airlines
2 stops
34h 50m
STN - STL
Multiple Airlines
£317
Combigo
07:40 - 18:02
Multiple Airlines
2 stops
40h 22m
STN - STL
Multiple Airlines
£342
Kiwi.com
16:45 - 19:36
Multiple Airlines
2 stops
32h 51m
LGW - STL
Multiple Airlines
£388
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">London</span> to <span class="emphasized">St. Louis</span> flights.

Flight FAQs

From London to St. Louis

What airport do you fly into for flights to St. Louis from London?

Lambert-St Louis (STL) is the airport you will fly into if you book a flight from London to St. Louis. You should not have trouble finding flights to Lambert-St Louis from London; the airport handles an average of 0 inbound flights from London per day. You should also have plenty of airline options to choose from since 12 airlines have flights to the St. Louis airport from London. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

Which airlines flying from London to Lambert-St Louis have flexible cancellations due to COVID-19?

Finnair, Virgin Atlantic, and British Airways are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from London to St. Louis for under £600 on Cheapflights?

Yes, there are multiple flights from London to St. Louis for under £600. The cheapest flight booked recently is on Finnair for just £577, but on average you can expect to pay £676.

Are there last-minute flights available from London to St. Louis for under £700?

There are currently 20+ open flights from London to St. Louis within the next 7 days for less than £700.

What are the cheapest airlines flying from London to St. Louis round-trip?

Our cheapest airline available from London to St. Louis is Finnair. Our recent data shows that you can find tickets from as low as £577 on this airline. Additional options worth looking into are American Airlines and Virgin Atlantic, starting at £770 and £779 round-trip. These flights start at 11% lower than the current average price 3 months from now.

What are the most popular routes from London to St. Louis?

When deciding which route to take from London to St. Louis consider London Heathrow - Lambert-St Louis, London City - Lambert-St Louis or London Gatwick - Lambert-St Louis as they are the most popular.

What are the most popular airlines that fly from London to St. Louis?

American Airlines, Air Canada and Air France are the most popular airlines when flying from London to St. Louis.

What are the cheapest flights from London to St. Louis?

The cheapest flight price from London to St. Louis is £590. On average you can expect to pay £1,283. The most popular route, (London Heathrow - Lambert-St Louis), can usually be booked for £577.

COVID Restrictions

View COVID Travel Restrictions for St. Louis, MO

Do I need a COVID test to fly to St. Louis from London?

Information is based on travel restrictions from London to Lambert-St Louis

Most visitors from London need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.

COVID-19 testing requirements
Visitors from London must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Lambert-St Louis.

Quarantine requirements
Visitors from London are not required to quarantine after entering Lambert-St Louis.

Do I need a test to fly back to London from St. Louis?

Returning to London from Lambert-St Louis

COVID-19 testing requirements
Visitors from Lambert-St Louis are not required to present a negative COVID-19 PCR test or antigen result upon entering London.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering London.

Hide COVID Travel Restrictions for St. Louis, MO

Alternative routes for London to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for St. Louis

Things to know before you go - useful duration and weather info for your trip from London to St. Louis.
Today's exchange rate
£1 = $1.26
Average temperature for May in St. Louis
26.0 °C
Avg rainfall for May in St. Louis
130.0 mm

Airports servicing London

Gatwick (LGW)
Stansted (STN)
London City (LCY)
Luton (LTN)
Southend (SEN)

Airports servicing St. Louis

Top 7 airlines flying from London to Lambert-St Louis

The chart below displays the airlines Cheapflights users travelling from London to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Virgin Atlantic
£496 £614 No cancel fee 72%
Search Virgin Atlantic flights
Lufthansa
£516 £617 No cancel fee 76%
Search Lufthansa flights
Finnair
£519 £632 No cancel fee 76%
Search Finnair flights
Iberia
£593 £707 No cancel fee 77%
Search Iberia flights
United Airlines
£603 £837 No cancel fee 69%
Search United Airlines flights
British Airways
£650 £855 No cancel fee 70%
Search British Airways flights
Aer Lingus
£685 £769 No cancel fee N/A
Search Aer Lingus flights
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