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Cheap flights from St. Louis to the United Kingdom from £139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to the United Kingdom departing on 2/2. 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 St. Louis to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
Lufthansa Logo
11:22 - 07:55
STL
-
EDI
14h 33m1 stop
Lufthansa Logo
09:25 - 23:59
EDI
-
STL
20h 34m1 stop
£437Lufthansa
Tue, 13 Jan - Fri, 30 Jan
Lufthansa Logo
15:50 - 12:20
STL
-
MAN
14h 30m1 stop
Lufthansa Logo
06:05 - 17:43
MAN
-
STL
17h 38m2 stops
£444Lufthansa
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
11:46 - 16:50
STL
-
EDI
23h 04m2 stops
Multiple Airlines Logo
11:25 - 22:58
EDI
-
STL
16h 33m2 stops
£448Multiple Airlines
Tue, 3 Mar - Mon, 9 Mar
Lufthansa Logo
12:44 - 12:00
STL
-
EDI
17h 16m2 stops
Lufthansa Logo
09:25 - 23:59
EDI
-
STL
20h 34m1 stop
£452Lufthansa
Tue, 13 Jan - Fri, 30 Jan
British Airways Logo
12:11 - 09:35
STL
-
GLA
15h 24m2 stops
British Airways Logo
10:40 - 22:59
GLA
-
STL
18h 19m2 stops
£454British Airways
Fri, 30 Jan - Fri, 6 Feb
British Airways Logo
15:54 - 13:15
STL
-
EDI
15h 21m2 stops
British Airways Logo
10:55 - 23:28
EDI
-
STL
18h 33m2 stops
£456British Airways
Fri, 6 Feb - Fri, 13 Feb
KLM Logo
17:00 - 16:05
STL
-
EDI
17h 05m2 stops
KLM Logo
10:45 - 23:42
EDI
-
STL
17h 57m2 stops
£464KLM
Tue, 3 Mar - Mon, 9 Mar
Virgin Atlantic Logo
09:59 - 10:30
STL
-
MAN
18h 31m1 stop
Virgin Atlantic Logo
13:25 - 23:37
MAN
-
STL
16h 12m1 stop
£465Virgin Atlantic
Fri, 30 Jan - Fri, 6 Feb
Air Canada Logo
05:00 - 06:30
STL
-
LHR
20h 30m2 stops
Air Canada Logo
14:10 - 12:25
LHR
-
STL
28h 15m2 stops
£491Air Canada
Sun, 22 Mar - Tue, 31 Mar
Air Canada Logo
16:05 - 21:00
STL
-
LHR
22h 55m2 stops
Air Canada Logo
14:05 - 14:27
LHR
-
STL
30h 22m2 stops
£496Air Canada
Sat, 18 Apr - Tue, 28 Apr

Air Canada flights from St. Louis to United Kingdom

Our best Air Canada deals on St. Louis to United Kingdom flight tickets
Air Canada
22 Mar
STL05:00Lambert-St Louis
20h 30m
2 stops
LHR06:30London Heathrow
31 Mar
LHR14:10London Heathrow
28h 15m
2 stops
STL12:25Lambert-St Louis
£490
Find similar
Air Canada
18 Apr
STL16:05Lambert-St Louis
22h 55m
2 stops
LHR21:00London Heathrow
28 Apr
LHR14:05London Heathrow
30h 22m
2 stops
STL14:27Lambert-St Louis
£496
Find similar
Air Canada
18 Apr
STL16:05Lambert-St Louis
32h 30m
1 stop
LHR06:35London Heathrow
27 Apr
LHR17:50London Heathrow
27h 34m
2 stops
STL15:24Lambert-St Louis
£497
Find similar

Delta flights from St. Louis to United Kingdom

Our best Delta deals on St. Louis to United Kingdom flight tickets
Delta
18 Jan
STL10:19Lambert-St Louis
15h 46m
2 stops
LHR08:05London Heathrow
1 Apr
LHR06:30London Heathrow
14h 08m
2 stops
STL14:38Lambert-St Louis
£492
Find similar
Delta
18 Apr
STL17:00Lambert-St Louis
31h 30m
1 stop
LHR06:30London Heathrow
28 Apr
LHR08:40London Heathrow
20h 21m
2 stops
STL23:01Lambert-St Louis
£493
Find similar
Delta
30 Jan
STL09:59Lambert-St Louis
16h 46m
2 stops
LHR08:45London Heathrow
6 Feb
LHR06:30London Heathrow
17h 20m
2 stops
STL17:50Lambert-St Louis
£518
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from St. Louis to United Kingdom 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 18 December 2025.
Use the filters below to find and compare flights from St. Louis to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Tue 13/1

11:22-07:55

1 stop14h 33m

Edinburgh Turnhouse

Fri 30/1

09:25-23:59

1 stop20h 34m

£437

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

Fri 30/1

15:50-12:20

1 stop14h 30m

Manchester

Fri 6/2

06:05-17:43

2 stops17h 38m

£444

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Tue 3/3

11:46-16:50

2 stops23h 04m

Edinburgh Turnhouse

Mon 9/3

11:25-22:58

2 stops16h 33m

£448

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Tue 13/1

12:44-12:00

2 stops17h 16m

Edinburgh Turnhouse

Fri 30/1

09:25-23:59

1 stop20h 34m

£452

St. LouisGlasgow

STL - GLA

STLGLA

Lambert-St Louis

Fri 30/1

12:11-09:35

2 stops15h 24m

Glasgow Intl

Fri 6/2

10:40-22:59

2 stops18h 19m

£454

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Fri 6/2

15:54-13:15

2 stops15h 21m

Edinburgh Turnhouse

Fri 13/2

10:55-23:28

2 stops18h 33m

£456

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Tue 3/3

17:00-16:05

2 stops17h 05m

Edinburgh Turnhouse

Mon 9/3

10:45-23:42

2 stops17h 57m

£464

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

Fri 30/1

09:59-10:30

1 stop18h 31m

Manchester

Fri 6/2

13:25-23:37

1 stop16h 12m

£465

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Sun 22/3

05:00-06:30

2 stops20h 30m

London Heathrow

Tue 31/3

14:10-12:25

2 stops28h 15m

£490

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Sat 18/4

16:05-21:00

2 stops22h 55m

London Heathrow

Tue 28/4

14:05-14:27

2 stops30h 22m

£496

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

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

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 United Kingdom?

The cheapest month to fly to United Kingdom from St. Louis is in November. Flight prices, which tend to average around £530, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of November, then departing from St. Louis during the month October is also very affordable. Most momondo users find prices during this month for around £539.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from St. Louis to United Kingdom is on a Saturday. Travellers who choose to depart for United Kingdom on a Saturday will often find tickets for as low as £633. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to United Kingdom for around £947.

What is the cheapest time of day to depart on your flight to United Kingdom?

The cheapest time of day to fly to United Kingdom is in the morning when flights can be purchased for as low as £608. Try not to purchase tickets at midday because they tend to be around £914. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £661 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from St. Louis for as low as £575 on momondo.

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

You could potentially save up to 17% on your flight if you consider stops on a St. Louis to United Kingdom flight.

Cheap St. Louis to United Kingdom flight deals and tips

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

Fastest flight time

8h 05m

Direct flights

Mon, Wed, Thu and Sat

Airports in United Kingdom

1,286 airports
The fastest flight from St. Louis to United Kingdom takes 8h 05m
Direct flights go from St. Louis to United Kingdom on Monday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights..
There are 1,286 airports in United Kingdom. From St. Louis there are direct flights to London Heathrow (LHR).
Search flight deals

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents required for your trip to United Kingdom 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 United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from St. Louis to United Kingdom?

Best airlines flying from St. Louis to United Kingdom

Compare and see reviews for airlines that fly from St. Louis to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom £368Free CancellationRating
7.7
1,428 reviews
Search KLM flights
Virgin AtlanticPriceFrom £411Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £433Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
Air CanadaPriceFrom £437Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to United Kingdom for you.

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

All flight searches from St. Louis to United Kingdom on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential St. Louis to United Kingdom flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to United Kingdom, momondo offers a useful price alert feature which will track prices for flights to United Kingdom from St. Louis and alert you when they change.

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Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
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