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Cheap flights from St. Louis to the United Kingdom from $309

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 4/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to the United Kingdom

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to the United Kingdom that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to the United Kingdom.

Cheap last minute flights

Planning a quick getaway from St. Louis to the United Kingdom? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to the United Kingdom, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to the United Kingdom

Find recent round-trip train or bus tickets from St. Louis to the United Kingdom.

All round-trip flight deals to the United Kingdom

The cheapest plane tickets to the United Kingdom found on KAYAK recently.
5:27 pm - 10:10 amSTL-INV
34h 43m2 stops
8:55 pm - 7:29 pmINV-STL
28h 34m2 stops
$606British Airways
Find Deal
Sat, Apr 5 - Sun, Apr 13
11:55 am - 9:50 amSTL-GLA
16h 55m2 stops
9:55 am - 10:18 pmGLA-STL
17h 23m2 stops
$649British Airways
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Tue, Mar 18 - Thu, Mar 27
6:00 am - 7:00 amSTL-MAN
19h 00m2 stops
2:00 pm - 9:36 amMAN-STL
25h 36m2 stops
$712Delta
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Wed, Jan 15 - Wed, Jan 22
3:50 pm - 8:30 amSTL-LHR
10h 40m1 stop
3:00 pm - 2:14 pmLHR-STL
29h 14m2 stops
$727Air Canada
Find Deal
Mon, Jan 20 - Wed, Feb 5
3:45 pm - 11:55 amSTL-MAN
14h 10m1 stop
6:00 am - 1:55 pmMAN-STL
13h 55m1 stop
$736United Airlines
Find Deal
Wed, Feb 5 - Wed, Feb 12
9:36 am - 7:30 amSTL-LGW
15h 54m2 stops
11:20 am - 11:46 pmLGW-STL
18h 26m2 stops
$738American Airlines
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Tue, Jan 21 - Tue, Jan 28
8:27 am - 7:55 amSTL-EDI
17h 28m2 stops
9:25 am - 8:02 pmEDI-STL
16h 37m2 stops
$738United Airlines
Find Deal
Tue, Feb 4 - Tue, Feb 11
3:50 pm - 7:10 amSTL-LHR
33h 20m2 stops
3:00 pm - 3:06 pmLHR-STL
30h 06m2 stops
$747Air Canada
Find Deal
Mon, Jan 20 - Wed, Feb 5
1:51 pm - 10:50 amSTL-EDI
15h 59m2 stops
6:25 am - 5:59 pmEDI-STL
16h 34m2 stops
$752American Airlines
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Wed, Mar 19 - Wed, Mar 26
5:37 pm - 8:55 pmSTL-EDI
21h 18m2 stops
9:00 am - 11:38 pmEDI-STL
20h 38m1 stop
$799Delta
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Mon, Apr 7 - Fri, Apr 25
4:57 pm - 10:00 amSTL-LGW
35h 03m1 stop
Tue, Apr 1
1:00 pm - 11:40 amSTL-MAN
40h 40m3 stops
Sat, Apr 5
5:35 pm - 4:25 pmSTL-LCY
16h 50m2 stops
$414Lufthansa
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Tue, Apr 1
12:00 pm - 9:50 amSTL-GLA
15h 50m2 stops
$429British Airways
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Tue, Feb 11
4:30 pm - 10:05 amSTL-MAN
35h 35m2 stops
$450British Airways
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Sat, Apr 5
8:00 am - 10:00 amSTL-LHR
20h 00m2 stops
$461Air Canada
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Tue, Apr 1
2:05 pm - 6:35 amSTL-LHR
11h 30m1 stop
$512American Airlines
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Fri, Mar 14
3:10 pm - 11:05 amSTL-LHR
13h 55m2 stops
$547United Airlines
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Sun, Jan 5
1:30 pm - 8:35 amSTL-LHR
37h 05m2 stops
$584Air Canada
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Fri, May 16
1:30 pm - 6:30 amSTL-LHR
11h 00m1 stop
$903United Airlines
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Tue, May 27
11:30 am - 3:20 pmSTL-LGW
21h 50m3 stops
2:00 pm - 2:43 pmLGW-STL
30h 43m2 stops
$1,264
Find Deal
Sat, Dec 28 - Mon, Jan 20
3:50 pm - 4:40 pmSTL-LGW
18h 50m2 stops
2:00 pm - 2:43 pmLGW-STL
30h 43m2 stops
$1,314
Find Deal
Sat, Dec 28 - Mon, Jan 20
11:30 am - 3:20 pmSTL-LGW
21h 50m3 stops
2:05 pm - 2:43 pmLGW-STL
30h 38m3 stops
$1,381
Find Deal
Sat, Dec 28 - Mon, Jan 20
5:27 pm - 6:30 amSTL-LHR
31h 03m2 stops
12:05 pm - 3:06 pmLHR-STL
57h 01m2 stops
$1,639Air Canada
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Sat, Dec 28 - Mon, Jan 20
6:23 pm - 4:20 pmSTL-MAN
15h 57m2 stops
8:10 am - 8:59 pmMAN-STL
18h 49m2 stops
$1,652American Airlines
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Thu, Dec 26 - Sat, Dec 28
3:50 pm - 12:40 pmSTL-BHX
38h 50m2 stops
6:00 am - 3:06 pmBHX-STL
39h 06m2 stops
$1,756Air Canada
Find Deal
Fri, Dec 27 - Fri, Jan 10
12:41 pm - 6:35 amSTL-LHR
11h 54m1 stop
11:55 am - 10:19 pmLHR-STL
16h 24m1 stop
$1,764British Airways
Find Deal
Tue, Dec 24 - Tue, Dec 31
10:16 am - 2:10 pmSTL-LHR
21h 54m2 stops
6:30 am - 10:28 pmLHR-STL
21h 58m2 stops
$1,826British Airways
Find Deal
Tue, Dec 24 - Mon, Dec 30
5:00 am - 7:55 amSTL-LHR
20h 55m1 stop
3:00 pm - 3:37 pmLHR-STL
30h 37m2 stops
$1,957United Airlines
Find Deal
Fri, Dec 27 - Fri, Jan 3
8:00 am - 6:55 amSTL-LHR
16h 55m2 stops
3:00 pm - 3:37 pmLHR-STL
30h 37m2 stops
$1,962United Airlines
Find Deal
Fri, Dec 27 - Fri, Jan 3

Scandinavian Airlines flights from St. Louis to United Kingdom

Our best Scandinavian Airlines deals on St. Louis to United Kingdom flight tickets
Scandinavian Airlines
Jan 20
STL12:52 pmLambert-St Louis
23h 38m
2 stops
LHR6:30 pmLondon Heathrow
Feb 5
LHR6:40 amLondon Heathrow
22h 56m
2 stops
STL11:36 pmLambert-St Louis
Scandinavian Airlines
Mar 17
STL1:00 pmLambert-St Louis
24h 30m
2 stops
LHR6:30 pmLondon Heathrow
Mar 26
LHR6:40 amLondon Heathrow
21h 58m
2 stops
STL11:38 pmLambert-St Louis
Scandinavian Airlines
Feb 2
STL2:00 pmLambert-St Louis
20h 00m
2 stops
LHR4:00 pmLondon Heathrow
Feb 9
LHR7:30 pmLondon Heathrow
34h 07m
2 stops
STL11:37 pmLambert-St Louis

Air Canada flights from St. Louis to United Kingdom

Our best Air Canada deals on St. Louis to United Kingdom flight tickets
Air Canada
Jan 20
STL3:50 pmLambert-St Louis
10h 40m
1 stop
LHR8:30 amLondon Heathrow
Feb 5
LHR3:00 pmLondon Heathrow
29h 14m
2 stops
STL2:14 pmLambert-St Louis
Air Canada
Jan 20
STL3:50 pmLambert-St Louis
33h 20m
2 stops
LHR7:10 amLondon Heathrow
Feb 5
LHR3:00 pmLondon Heathrow
30h 06m
2 stops
STL3:06 pmLambert-St Louis
Air Canada
Feb 5
STL9:44 amLambert-St Louis
20h 56m
3 stops
BHX12:40 pmBirmingham
Feb 12
BHX6:05 amBirmingham
21h 40m
3 stops
STL9:45 pmLambert-St Louis

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?

In general, February is the cheapest month to fly from St. Louis to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $725. If you aren’t able to travel to United Kingdom during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $753.

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 Wednesday when prices can be found for as low as $846. The most expensive day to fly to United Kingdom is Tuesday, with ticket prices averaging around $1,006.

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

According to our data, the cheapest time of day to fly to United Kingdom is in the morning. momondo users have found flights departing from St. Louis to United Kingdom in the morning for as low as $915. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly at noon, with an average ticket price of $958. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

We recommend purchasing flights from St. Louis to United Kingdom 55 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to United Kingdom for $925. However, in the past 72 hours, people saw flights from St. Louis for as low as $710.

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

You could potentially save up to 25% 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

Best Price Found

$309

Fastest flight time

9h 57m

Direct flights

None

Airports in United Kingdom

9 airports
The best one-way flight to United Kingdom from St. Louis in the past 72 hours is $309. The best round-trip flight deal from St. Louis to United Kingdom found on momondo in the last 72 hours is $606.
The fastest flight from St. Louis to United Kingdom takes 9h 57m
There are no direct flights from St. Louis to United Kingdom. Popular non-direct routes for this connection are Lambert-St Louis Airport - London City Airport, Lambert-St Louis Airport - London Gatwick Airport and Lambert-St Louis Airport - Manchester Airport.
There are 9 airports near United Kingdom: Inverness (INV), London City (LCY), Birmingham (BHX), London Heathrow (LHR), London Luton (LTN), Manchester (MAN), Edinburgh Turnhouse (EDI), London Gatwick (LGW), Glasgow Intl (GLA)

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.


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 $490Free CancellationRating
7.8
1,345 reviews
Search KLM flights
American AirlinesPriceFrom $611Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom $625Free CancellationRating
7.0
8,421 reviews
Search Air Canada flights
IberiaPriceFrom $631Free CancellationRating
7.0
2,651 reviews
Search Iberia flights
United AirlinesPriceFrom $634Free CancellationRating
7.4
9,022 reviews
Search United Airlines flights
British AirwaysPriceFrom $647Free CancellationRating
6.6
6,810 reviews
Search British Airways flights
LufthansaPriceFrom $649Free CancellationRating
6.8
7,083 reviews
Search Lufthansa flights
Virgin AtlanticPriceFrom $654Free CancellationRating
7.5
667 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $679Free CancellationRating
8.0
8,588 reviews
Search Delta flights
Air FrancePriceFrom $769Free CancellationRating
7.4
1,503 reviews
Search Air France flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to United Kingdom from St. Louis which offer a flexible booking policy as well as other useful filters and features.

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

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 from St. Louis to United Kingdom.

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

Yes. momondo can track prices for St. Louis to United Kingdom flights 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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Popular cities in the United Kingdom

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