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Flights to Lambert-St Louis

£227 Cheap flights to St. Louis

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to St. Louis departing on 23/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:00 - 23:33
LGW
-
STL
15h 33m1 stop
Multiple Airlines Logo
11:18 - 10:00
STL
-
LGW
16h 42m1 stop
£397Multiple Airlines
Fri, 23 Jan - Fri, 30 Jan
Multiple Airlines Logo
14:00 - 10:23
LGW
-
STL
26h 23m1 stop
Multiple Airlines Logo
10:16 - 10:00
STL
-
LGW
17h 44m1 stop
£397Multiple Airlines
Thu, 22 Jan - Mon, 26 Jan
British Airways Logo
12:30 - 20:03
LHR
-
STL
13h 33m1 stop
British Airways Logo
22:00 - 12:05
STL
-
LHR
8h 05mdirect
£537British Airways
Tue, 5 May - Tue, 12 May
British Airways Logo
18:45 - 23:24
LHR
-
STL
34h 39m2 stops
British Airways Logo
09:15 - 07:50
STL
-
LHR
16h 35m1 stop
£544British Airways
Mon, 4 May - Wed, 13 May
Finnair Logo
18:05 - 13:49
LHR
-
STL
25h 44m2 stops
Finnair Logo
09:15 - 06:20
STL
-
LHR
15h 05m2 stops
£546Finnair
Tue, 5 May - Tue, 12 May
Virgin Atlantic Logo
10:00 - 20:43
LHR
-
STL
16h 43m2 stops
Virgin Atlantic Logo
12:00 - 06:25
STL
-
LHR
12h 25m1 stop
£549Virgin Atlantic
Mon, 12 Jan - Mon, 26 Jan
Virgin Atlantic Logo
10:45 - 17:50
LHR
-
STL
13h 05m1 stop
Virgin Atlantic Logo
12:00 - 07:50
STL
-
LHR
13h 50m1 stop
£550Virgin Atlantic
Mon, 12 Jan - Mon, 26 Jan
Finnair Logo
11:35 - 21:11
EDI
-
STL
15h 36m2 stops
Finnair Logo
06:38 - 07:10
STL
-
EDI
18h 32m1 stop
£653Finnair
Thu, 30 Apr - Thu, 7 May
United Airlines Logo
09:25 - 17:18
EDI
-
STL
13h 53m1 stop
United Airlines Logo
13:15 - 07:55
STL
-
EDI
12h 40m2 stops
£904United Airlines
Fri, 16 Jan - Mon, 19 Jan
United Airlines Logo
09:25 - 17:18
EDI
-
STL
13h 53m1 stop
United Airlines Logo
08:05 - 07:55
STL
-
EDI
17h 50m2 stops
£904United Airlines
Fri, 16 Jan - Mon, 19 Jan

momondo Fare Finder

 
Locate flights to Lambert-St Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 12 December 2025.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 23/1

14:00-23:33

1 stop15h 33m

Lambert-St Louis

Fri 30/1

11:18-10:00

1 stop16h 42m

£397

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 22/1

14:00-10:23

1 stop26h 23m

Lambert-St Louis

Mon 26/1

10:16-10:00

1 stop17h 44m

£397

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Tue 5/5

12:30-20:03

1 stop13h 33m

Lambert-St Louis

Tue 12/5

22:00-12:05

Nonstop8h 05m

£537

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Mon 4/5

18:45-23:24

2 stops34h 39m

Lambert-St Louis

Wed 13/5

09:15-07:50

1 stop16h 35m

£544

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Tue 5/5

18:05-13:49

2 stops25h 44m

Lambert-St Louis

Tue 12/5

09:15-06:20

2 stops15h 05m

£546

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Mon 12/1

10:00-20:43

2 stops16h 43m

Lambert-St Louis

Mon 26/1

12:00-06:25

1 stop12h 25m

£549

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Mon 12/1

10:45-17:50

1 stop13h 05m

Lambert-St Louis

Mon 26/1

12:00-07:50

1 stop13h 50m

£550

EdinburghSt. Louis

EDI - STL

EDISTL

Edinburgh Turnhouse

Thu 30/4

11:35-21:11

2 stops15h 36m

Lambert-St Louis

Thu 7/5

06:38-07:10

1 stop18h 32m

£653

EdinburghSt. Louis

EDI - STL

EDISTL

Edinburgh Turnhouse

Fri 16/1

09:25-17:18

1 stop13h 53m

Lambert-St Louis

Mon 19/1

13:15-07:55

2 stops12h 40m

£904

EdinburghSt. Louis

EDI - STL

EDISTL

Edinburgh Turnhouse

Fri 16/1

09:25-17:18

1 stop13h 53m

Lambert-St Louis

Mon 19/1

08:05-07:55

2 stops17h 50m

£904

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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St. Louis flights insights and trends

Explore insights for your St. Louis flight to craft the best travel plan

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 £552. 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 £559.

What is the absolute cheapest flight to St. Louis?

See prices from:

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

Our data shows that Sunday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as £609. Flights from United Kingdom to St. Louis on a Saturday will generally be more expensive and average around £687. 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 £562. In contrast, the most expensive time of day to depart to St. Louis is in the morning when prices are around £661.

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 £636 on momondo.

Cheapest flights to Lambert-St Louis

Find the cheapest flights to Lambert-St Louis from your nearest city or airport
Find flights from London Heathrow Airport to St. Louis
CHEAPEST MONTH TO FLY TO ST. LOUIS FROM LONDON HEATHROW AIRPORTFebruary23% cheaperFlying from London Heathrow Airport to St. Louis costs on average just £567 in February
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM LONDON HEATHROW AIRPORTAugust15% more expensiveIt costs about £847 for flights to St. Louis from London Heathrow Airport in August
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM LONDON HEATHROW AIRPORTJuly380% more users visitedMore momondo users searched in flights to St. Louis from London Heathrow Airport in July than any other month

Cheap St. Louis flight deals and tips

Summary info about St. Louis flight prices, duration and airlines

Best One-Way Price

£227

Best Round-Trip Price

£397

Fastest flight time

14h 35m

Popular in

August
The best one-way flight price to St. Louis from United Kingdom in the last 72 hours is £227 (London Gatwick to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from United Kingdom in the last 72 hours is £397 (London Gatwick to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from United Kingdom takes 14h 35m (Manchester to Lambert-St Louis).
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August has the highest demand for flights to St. Louis, with a 11% price increase on average.
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Frequently asked questions about flying to St. Louis

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

Most flyers found that booking tickets 13 days in advance of their planned departure date is the best time to get cheap flights to St. Louis. During this timeframe, flight prices are around £732. Keep in mind that you might also find cheap flights to St. Louis outside of this time window. In fact, momondo users recently found flights from United Kingdom to St. Louis for £512.

Is there an alternative airport near St. Louis?

Belleville Airport, Marion Williamson County Airport or Springfield Capital Airport can be an alternative airport used for travel to St. Louis.

When did momondo last update prices for flights to Lambert-St Louis Airport?

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

How many operators does momondo search for flights to Lambert-St Louis Airport?

As of December 2025, there are 14 operators available to choose from for flights to Lambert-St Louis Airport.

How old do you have to be to fly to Lambert-St Louis Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel 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.

Travelling to a place near St. Louis?

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

Why use momondo?

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

Finding the right flight to St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

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

Yes. All flights to St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to St. Louis.

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

Yes. momondo can track flight prices for St. Louis and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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