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Cheap flights from St. Louis to London Heathrow Airport from £226

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 London Heathrow Airport departing on 3/12. 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 London

Cheap return flights

These are some of the best return flight deals from St. Louis to London 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 London.

Cheap last-minute flights

Planning a quick getaway from St. Louis to London? 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 London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from St. Louis to London

Find recent round-trip train or bus tickets from St. Louis to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
13:00 - 16:00STL-LHR
21h 00m2 stops
19:30 - 23:38LHR-STL
34h 08m2 stops
£554Scandinavian Airlines
Find Deal
Sat, 18 Jan - Tue, 21 Jan
13:00 - 16:00STL-LHR
21h 00m2 stops
06:40 - 23:38LHR-STL
22h 58m2 stops
£555Scandinavian Airlines
Find Deal
Fri, 7 Feb - Mon, 10 Feb
17:21 - 06:30STL-LHR
31h 09m3 stops
15:00 - 15:21LHR-STL
30h 21m3 stops
Thu, 28 Nov - Sat, 7 Dec
15:48 - 08:30STL-LHR
34h 42m3 stops
11:10 - 14:43LHR-STL
33h 33m3 stops
Thu, 16 Jan - Mon, 20 Jan
16:30 - 10:50STL-LHR
12h 20m1 stop
06:30 - 13:55LHR-STL
13h 25m1 stop
£601United Airlines
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Sun, 23 Feb - Fri, 7 Mar
06:30 - 11:15STL-LHR
22h 45m1 stop
14:30 - 15:06LHR-STL
30h 36m1 stop
£608United Airlines
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Tue, 28 Jan - Tue, 4 Feb
14:30 - 06:50STL-LHR
10h 20m1 stop
11:55 - 17:58LHR-STL
12h 03m1 stop
£648British Airways
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Tue, 10 Dec - Fri, 27 Dec
12:01 - 06:20STL-LHR
12h 19m1 stop
19:40 - 21:40LHR-STL
31h 00m2 stops
£674British Airways
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Thu, 6 Mar - Wed, 12 Mar
11:09 - 07:55STL-LHR
14h 46m1 stop
11:15 - 21:33LHR-STL
16h 18m2 stops
£688Virgin Atlantic
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Fri, 31 Jan - Sat, 8 Feb
13:09 - 07:55STL-LHR
12h 46m2 stops
12:20 - 23:43LHR-STL
17h 23m2 stops
£717Virgin Atlantic
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Wed, 20 Nov - Thu, 12 Dec
17:02 - 19:30STL-LHR
44h 28m2 stops
Tue, 3 Dec
12:00 - 19:30STL-LHR
25h 30m3 stops
Tue, 3 Dec
12:15 - 12:50STL-LHR
42h 35m3 stops
Sat, 8 Mar
16:00 - 16:00STL-LHR
19h 00m2 stops
£281Scandinavian Airlines
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Mon, 24 Mar
13:09 - 16:00STL-LHR
20h 51m2 stops
£281Scandinavian Airlines
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Wed, 13 Nov
14:54 - 06:50STL-LHR
10h 56m1 stop
£350British Airways
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Sun, 23 Mar
06:25 - 06:40STL-LHR
18h 15m2 stops
£369United Airlines
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Sun, 5 Jan
06:04 - 07:05STL-LHR
19h 01m1 stop
£446Virgin Atlantic
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Thu, 26 Dec
05:00 - 08:30STL-LHR
21h 30m2 stops
£450United Airlines
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Thu, 26 Dec
12:45 - 12:05STL-LHR
17h 20m2 stops
£1,948British Airways
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Wed, 5 Feb
17:25 - 09:35STL-LHR
34h 10m1 stop
20:40 - 23:13LHR-STL
32h 33m2 stops
£1,095
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Thu, 7 Nov - Mon, 11 Nov
11:38 - 10:20STL-LHR
16h 42m2 stops
08:50 - 20:59LHR-STL
18h 09m2 stops
£1,155Aer Lingus
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Tue, 5 Nov - Tue, 3 Dec
17:40 - 21:05STL-LHR
21h 25m2 stops
22:35 - 15:34LHR-STL
22h 59m2 stops
£1,185
Find Deal
Tue, 5 Nov - Tue, 3 Dec
06:40 - 08:05STL-LHR
19h 25m2 stops
07:50 - 21:59LHR-STL
20h 09m2 stops
£1,193Aer Lingus
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Fri, 8 Nov - Sat, 16 Nov
12:37 - 06:40STL-LHR
12h 03m1 stop
17:30 - 13:55LHR-STL
26h 25m1 stop
£1,244Lufthansa
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Tue, 5 Nov - Tue, 3 Dec
16:54 - 11:05STL-LHR
12h 11m1 stop
13:30 - 13:55LHR-STL
30h 25m1 stop
£1,246United Airlines
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Tue, 5 Nov - Tue, 3 Dec
13:05 - 07:55STL-LHR
12h 50m1 stop
06:30 - 13:55LHR-STL
13h 25m1 stop
£1,264Lufthansa
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Thu, 7 Nov - Fri, 15 Nov
12:43 - 08:15STL-LHR
13h 32m1 stop
06:10 - 19:38LHR-STL
19h 28m2 stops
£1,315Iberia
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Fri, 8 Nov - Sat, 16 Nov
13:05 - 07:55STL-LHR
12h 50m1 stop
13:30 - 13:55LHR-STL
30h 25m1 stop
£1,323United Airlines
Find Deal
Fri, 8 Nov - Sat, 16 Nov
15:50 - 08:30STL-LHR
10h 40m1 stop
11:10 - 15:06LHR-STL
33h 56m1 stop
£1,366Air Canada
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Thu, 7 Nov - Mon, 11 Nov

Lufthansa flights from St. Louis to London Heathrow Airport

Our best Lufthansa deals on St. Louis to London Heathrow Airport flight tickets
Lufthansa
29 Dec
STL08:25Lambert-St Louis
16h 15m
1 stop
LHR06:40London Heathrow
14 Jan
LHR16:00London Heathrow
13h 30m
1 stop
STL23:30Lambert-St Louis
Lufthansa
6 Apr
STL17:18Lambert-St Louis
20h 22m
2 stops
LHR19:40London Heathrow
12 Apr
LHR17:50London Heathrow
27h 31m
2 stops
STL15:21Lambert-St Louis
Lufthansa
11 Apr
STL15:30Lambert-St Louis
12h 10m
1 stop
LHR09:40London Heathrow
27 Apr
LHR06:30London Heathrow
13h 00m
1 stop
STL13:30Lambert-St Louis

Air Canada flights from St. Louis to London Heathrow Airport

Our best Air Canada deals on St. Louis to London Heathrow Airport flight tickets
Air Canada
13 Jan
STL15:50Lambert-St Louis
10h 40m
1 stop
LHR08:30London Heathrow
27 Jan
LHR13:45London Heathrow
55h 21m
2 stops
STL15:06Lambert-St Louis
Air Canada
2 Dec
STL15:50Lambert-St Louis
10h 40m
1 stop
LHR08:30London Heathrow
9 Dec
LHR12:05London Heathrow
57h 01m
2 stops
STL15:06Lambert-St Louis
Air Canada
3 Dec
STL15:50Lambert-St Louis
10h 40m
1 stop
LHR08:30London Heathrow
13 Dec
LHR18:00London Heathrow
27h 06m
1 stop
STL15:06Lambert-St Louis

How to get the cheapest flight ticket from St. Louis to London Heathrow Airport

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 from St. Louis to London Heathrow Airport?

February. The cheapest time of year to fly to London Heathrow Airport from St. Louis is February. The most expensive is June.

What is the cheapest day to depart St. Louis for London Heathrow Airport?

Wednesday. The cheapest day of the week is usually Wednesday. The most expensive is usually Friday.

When is the cheapest time to fly from St. Louis to London Heathrow Airport?

In the afternoon. St. Louis to London Heathrow Airport flights are approximately 7% more expensive in the morning than in the afternoon

What is the cheapest airline that flies to London Heathrow Airport from St. Louis?

Virgin Atlantic. Virgin Atlantic, United Airlines, and British Airways are the most popular carriers operating from St. Louis to London Heathrow Airport

How far in advance should you book St. Louis to London Heathrow Airport flights?

49 days before. The cheapest time to buy a flight from St. Louis to London Heathrow Airport is approximately 49 days to departure

Can stopping save me money on St. Louis to London Heathrow Airport flights?

You could potentially save up to 39% on your flight if you consider stops on a St. Louis to London Heathrow Airport flight.

When to book flights from St. Louis to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap St. Louis to London Heathrow Airport (STL to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to London Heathrow Airport

Best price found

£226

Fastest flight time

10h 20m

Direct flights

None
The best one-way flight to London Heathrow Airport from St. Louis in the past 72 hours is £226. The best return flight deal from St. Louis to London Heathrow Airport found on momondo in the last 72 hours is £554.
The fastest flight from St. Louis to London Heathrow Airport takes 10h 20m
There are no direct flights from St. Louis to London Heathrow Airport. Popular non-direct route for this connection is Lambert-St Louis Airport - London Heathrow Airport.

  • How far is Lambert-St Louis to London Heathrow by plane?

    Lambert-St Louis and London Heathrow are 4185.8 mi apart from one another. By plane, this route typically takes 10h 20m.

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

    Prices for flights from Lambert-St Louis Airport to London Heathrow Airport were last updated today.

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

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

    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 London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to London Heathrow Airport?


Best airlines flying from St. Louis to London Heathrow Airport

Compare and see reviews for airlines that fly from St. Louis to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £428Free CancellationRating
7.6
666 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £503Free CancellationRating
6.7
6,842 reviews
Search British Airways flights
United AirlinesPriceFrom £525Free CancellationRating
7.4
9,226 reviews
Search United Airlines flights
American AirlinesPriceFrom £532Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from St. Louis.

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

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

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

Once you have performed a search for St. Louis to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for St. Louis to London 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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