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Cheap flights from the United Kingdom to St. Louis from £293

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to St. Louis departing on 30/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from the United Kingdom to St. Louis

Recent return flight deals from the United Kingdom to St. Louis

Logo
14:00 - 13:02LGW-STL
29h 02m1 stop
Logo
13:57 - 10:00STL-LGW
14h 03m1 stop
£465
Find Deal
su, 14 syys - ma, 22 syys
Logo
14:00 - 13:02LGW-STL
29h 02m1 stop
Logo
13:52 - 10:10STL-LGW
14h 18m1 stop
£498
Find Deal
su, 7 syys - su, 14 syys
Lufthansa Logo
06:30 - 13:55LHR-STL
13h 25m1 stop
Lufthansa Logo
12:24 - 11:05STL-LHR
16h 41m1 stop
£697Lufthansa
Find Deal
pe, 9 tammi - pe, 30 tammi
British Airways Logo
12:35 - 19:27LHR-STL
12h 52m1 stop
British Airways Logo
13:20 - 08:15STL-LHR
12h 55m1 stop
£698British Airways
Find Deal
ti, 25 marras - ma, 1 joulu
Lufthansa Logo
06:55 - 21:32LHR-STL
20h 37m2 stops
Lufthansa Logo
08:15 - 06:55STL-LHR
16h 40m1 stop
£698Lufthansa
Find Deal
la, 13 syys - la, 20 syys
Virgin Atlantic Logo
15:15 - 23:14LHR-STL
13h 59m1 stop
Virgin Atlantic Logo
13:30 - 06:25STL-LHR
10h 55m1 stop
£739Virgin Atlantic
Find Deal
pe, 22 elo - to, 11 joulu
Virgin Atlantic Logo
08:40 - 19:01LCY-STL
16h 21m2 stops
Virgin Atlantic Logo
10:45 - 07:15STL-LCY
14h 30m2 stops
£741Virgin Atlantic
Find Deal
ke, 3 syys - ke, 10 syys
Finnair Logo
10:40 - 22:15LGW-STL
17h 35m2 stops
Finnair Logo
18:55 - 08:10STL-LGW
31h 15m2 stops
£805Finnair
Find Deal
su, 31 elo - su, 7 syys
British Airways Logo
08:00 - 21:06MAN-STL
19h 06m2 stops
British Airways Logo
19:42 - 22:00STL-MAN
20h 18m2 stops
£811British Airways
Find Deal
ma, 8 syys - to, 18 syys
Finnair Logo
18:30 - 18:23EDI-STL
29h 53m2 stops
Finnair Logo
13:48 - 15:15STL-EDI
19h 27m2 stops
£922Finnair
Find Deal
pe, 9 tammi - su, 1 helmi

United Airlines flights from United Kingdom to St. Louis

Our best United Airlines deals on United Kingdom to St. Louis flight tickets
United Airlines
10 Sept
LHR07:45London Heathrow
21h 59m
2 stops
STL23:44Lambert-St Louis
27 Sept
STL06:00Lambert-St Louis
17h 55m
1 stop
LHR05:55London Heathrow
£620
Find similar
United Airlines
13 Sept
LHR15:20London Heathrow
14h 24m
1 stop
STL23:44Lambert-St Louis
27 Sept
STL06:00Lambert-St Louis
18h 20m
2 stops
LHR06:20London Heathrow
£666
Find similar
United Airlines
17 Sept
LHR15:20London Heathrow
14h 24m
1 stop
STL23:44Lambert-St Louis
24 Sept
STL06:00Lambert-St Louis
22h 10m
1 stop
LHR10:10London Heathrow
£677
Find similar

KLM flights from United Kingdom to St. Louis

Our best KLM deals on United Kingdom to St. Louis flight tickets
KLM
13 Jan
EDI05:45Edinburgh Turnhouse
17h 10m
2 stops
STL16:55Lambert-St Louis
29 Jan
STL11:51Lambert-St Louis
16h 19m
2 stops
EDI10:10Edinburgh Turnhouse
£785
Find similar
KLM
9 Oct
GLA06:00Glasgow Intl
17h 15m
2 stops
STL17:15Lambert-St Louis
13 Oct
STL17:31Lambert-St Louis
13h 29m
2 stops
GLA13:00Glasgow Intl
£814
Find similar
KLM
9 Aug
LHR11:20London Heathrow
18h 33m
1 stop
STL23:53Lambert-St Louis
22 Aug
STL18:49Lambert-St Louis
12h 41m
1 stop
LHR13:30London Heathrow
£1,230
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 5 elokuu 2025.
Use the filters below to find and compare flights from the United Kingdom to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

su 14/9

14:00-13:02

1 stop29h 02m

Lambert-St Louis

ma 22/9

13:57-10:00

1 stop14h 03m

£465

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

su 7/9

14:00-13:02

1 stop29h 02m

Lambert-St Louis

su 14/9

13:52-10:10

1 stop14h 18m

£498

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

pe 9/1

06:30-13:55

1 stop13h 25m

Lambert-St Louis

pe 30/1

12:24-11:05

1 stop16h 41m

£697

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

ti 25/11

12:35-19:27

1 stop12h 52m

Lambert-St Louis

ma 1/12

13:20-08:15

1 stop12h 55m

£698

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

la 13/9

06:55-21:32

2 stops20h 37m

Lambert-St Louis

la 20/9

08:15-06:55

1 stop16h 40m

£698

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

pe 22/8

15:15-23:14

1 stop13h 59m

Lambert-St Louis

to 11/12

13:30-06:25

1 stop10h 55m

£739

LondonSt. Louis

LCY - STL

LCYSTL

London City

ke 3/9

08:40-19:01

2 stops16h 21m

Lambert-St Louis

ke 10/9

10:45-07:15

2 stops14h 30m

£741

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

su 31/8

10:40-22:15

2 stops17h 35m

Lambert-St Louis

su 7/9

18:55-08:10

2 stops31h 15m

£805

ManchesterSt. Louis

MAN - STL

MANSTL

Manchester

ma 8/9

08:00-21:06

2 stops19h 06m

Lambert-St Louis

to 18/9

19:42-22:00

2 stops20h 18m

£811

EdinburghSt. Louis

EDI - STL

EDISTL

Edinburgh Turnhouse

pe 9/1

18:30-18:23

2 stops29h 53m

Lambert-St Louis

su 1/2

13:48-15:15

2 stops19h 27m

£922

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to St. Louis from

How to get the cheapest flight ticket from United Kingdom to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

The month of March is, on average, the cheapest month to fly to St. Louis from United Kingdom, with most prices found around £558. If you’re not able to fly to St. Louis in March, then January is your next best option. Flight prices from United Kingdom to St. Louis during January average around £567.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Wednesday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as £608. Flights from United Kingdom to St. Louis on a Sunday will generally be more expensive and average around £723. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to St. Louis?

Our data shows that the cheapest United Kingdom to St. Louis flights are usually those with departure times in the evening. Our users have found flights to St. Louis in the evening for as low as £566. In contrast, the most expensive time of day to depart to St. Louis is in the morning when prices are around £666.

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

You are more likely to see cheaper flights to St. Louis from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around £731 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from United Kingdom for as low as £659 on momondo.

Can stopping save me money on United Kingdom to St. Louis flights?

You could potentially save up to 14% on your flight if you consider stops on a United Kingdom to St. Louis flight.

Cheap United Kingdom to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to St. Louis

Best price found

£293

Fastest flight time

11h 52m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from United Kingdom in the past 72 hours is £293. The best return flight deal from United Kingdom to St. Louis found on momondo in the last 72 hours is £465.
The fastest flight from United Kingdom to St. Louis takes 11h 52m
There are no direct flights from United Kingdom to St. Louis. Popular non-direct routes for this connection are London Heathrow Airport - Lambert-St Louis Airport, Edinburgh Turnhouse Airport - Lambert-St Louis Airport and London Gatwick Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

  • When did momondo last update prices for flights from United Kingdom to Lambert-St Louis Airport?

    Prices for flights from United Kingdom to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from United Kingdom to Lambert-St Louis Airport?

  • How old do you have to be to fly from United Kingdom to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from United Kingdom to St. Louis

Compare and see reviews for airlines that fly from United Kingdom to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom £175Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom £484Free CancellationRating
7.3
1,461 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom £515Free CancellationRating
7.6
1,319 reviews
Search Finnair flights
Air CanadaPriceFrom £629Free CancellationRating
7.1
9,879 reviews
Search Air Canada flights
IberiaPriceFrom £632Free CancellationRating
7.0
2,865 reviews
Search Iberia flights
British AirwaysPriceFrom £636Free CancellationRating
6.6
7,235 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £641Free CancellationRating
7.4
655 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £647Free CancellationRating
7.4
8,912 reviews
Search United Airlines flights
LufthansaPriceFrom £682Free CancellationRating
6.8
7,285 reviews
Search Lufthansa flights
KLMPriceFrom £724Free CancellationRating
7.8
1,381 reviews
Search KLM flights

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Collinsville

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United Kingdom to St. Louis . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from United Kingdom to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for United Kingdom to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from United Kingdom to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from United Kingdom.

I’m not ready to book a flight from United Kingdom to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis from United Kingdom are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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