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Cheap flights from St. Louis to London from £193

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 departing on 26/7. 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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Cheap return flights

United Airlines Logo
08:50 - 07:30STL-LHR
16h 40m1 stop
United Airlines Logo
06:30 - 15:26LHR-STL
14h 56m2 stops
£498United Airlines
Find Deal
Wed, 19 Nov - Fri, 5 Dec
British Airways Logo
12:07 - 06:25STL-LHR
12h 18m1 stop
British Airways Logo
13:30 - 20:21LHR-STL
12h 51m1 stop
£499British Airways
Find Deal
Sun, 21 Sep - Wed, 1 Oct
Air Canada Logo
08:10 - 06:30STL-LHR
16h 20m2 stops
Air Canada Logo
14:05 - 12:25LHR-STL
28h 20m2 stops
£504Air Canada
Find Deal
Tue, 19 Aug - Wed, 27 Aug
Iberia Logo
14:01 - 10:50STL-LHR
14h 49m1 stop
Iberia Logo
06:15 - 23:49LHR-STL
23h 34m2 stops
£504Iberia
Find Deal
Wed, 10 Sep - Wed, 24 Sep
Air Canada Logo
13:30 - 08:35STL-LHR
13h 05m2 stops
Air Canada Logo
15:50 - 14:19LHR-STL
28h 29m2 stops
£505Air Canada
Find Deal
Wed, 10 Sep - Tue, 30 Sep
Delta Logo
15:36 - 11:25STL-LHR
13h 49m2 stops
Delta Logo
11:30 - 22:02LHR-STL
16h 32m2 stops
£517Delta
Find Deal
Tue, 19 Aug - Wed, 27 Aug
Scandinavian Airlines Logo
15:30 - 16:00STL-LHR
18h 30m2 stops
Scandinavian Airlines Logo
07:05 - 23:39LHR-STL
22h 34m3 stops
£528Scandinavian Airlines
Find Deal
Tue, 14 Oct - Wed, 22 Oct
Iberia Logo
12:07 - 06:25STL-LHR
12h 18m1 stop
Iberia Logo
12:15 - 20:23LHR-STL
14h 08m1 stop
£536Iberia
Find Deal
Wed, 10 Sep - Mon, 22 Sep
Delta Logo
07:00 - 07:15STL-LHR
18h 15m1 stop
Delta Logo
11:30 - 23:22LHR-STL
17h 52m2 stops
£545Delta
Find Deal
Mon, 28 Jul - Thu, 14 Aug
Scandinavian Airlines Logo
13:30 - 16:00STL-LHR
20h 30m2 stops
Scandinavian Airlines Logo
21:05 - 20:49LHR-STL
29h 44m3 stops
£590Scandinavian Airlines
Find Deal
Thu, 25 Sep - Mon, 29 Sep

British Airways flights from St. Louis to London Heathrow Airport

Our best British Airways deals on St. Louis to London Heathrow Airport flight tickets
British Airways
21 Sept
STL12:07Lambert-St Louis
12h 18m
1 stop
LHR06:25London Heathrow
1 Oct
LHR13:30London Heathrow
12h 51m
1 stop
STL20:21Lambert-St Louis
British Airways
20 Aug
STL12:23Lambert-St Louis
12h 02m
1 stop
LHR06:25London Heathrow
27 Aug
LHR09:15London Heathrow
12h 33m
1 stop
STL15:48Lambert-St Louis
British Airways
30 Jul
STL12:27Lambert-St Louis
11h 58m
1 stop
LHR06:25London Heathrow
13 Aug
LHR10:30London Heathrow
14h 00m
1 stop
STL18:30Lambert-St Louis

United Airlines flights from St. Louis to London Heathrow Airport

Our best United Airlines deals on St. Louis to London Heathrow Airport flight tickets
United Airlines
19 Nov
STL08:50Lambert-St Louis
16h 40m
1 stop
LHR07:30London Heathrow
5 Dec
LHR06:30London Heathrow
14h 56m
2 stops
STL15:26Lambert-St Louis
United Airlines
14 Oct
STL13:30Lambert-St Louis
14h 05m
1 stop
LHR09:35London Heathrow
22 Oct
LHR14:05London Heathrow
26h 44m
2 stops
STL10:49Lambert-St Louis
United Airlines
11 Oct
STL16:40Lambert-St Louis
35h 00m
1 stop
LHR09:40London Heathrow
21 Oct
LHR15:50London Heathrow
29h 28m
1 stop
STL15:18Lambert-St Louis

See travel insights to London from

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 typical price of a round-trip flight between St. Louis and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

In general, October is the cheapest month to fly from St. Louis to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £602. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from St. Louis averaging around £617.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from St. Louis is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £554. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Friday is £1,316.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from St. Louis to London Heathrow Airport in the morning for as low as £670. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £831 on average. Flights to London Heathrow Airport from St. Louis in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from St. Louis when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £711 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from St. Louis for as low as £611 on momondo.

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

£193

Fastest flight time

10h 14m

Direct flights

None
The best one-way flight to London Heathrow Airport from St. Louis in the past 72 hours is £193. The best return flight deal from St. Louis to London Heathrow Airport found on momondo in the last 72 hours is £498.
The fastest flight from St. Louis to London Heathrow Airport takes 10h 14m
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 14m.

  • 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
Air CanadaPriceFrom £498Free CancellationRating
7.0
9,393 reviews
Search Air Canada flights
British AirwaysPriceFrom £499Free CancellationRating
6.6
6,923 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £524Free CancellationRating
7.4
644 reviews
Search Virgin Atlantic flights
KLMPriceFrom £530Free CancellationRating
7.8
1,346 reviews
Search KLM flights
American AirlinesPriceFrom £584Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Southend-on-Sea
Slough
Northampton
Stratford-upon-Avon
Swindon
Maidstone
Gatwick
Ipswich
Canterbury
Ilford
Margate
Dartford
Salisbury
Hounslow
Colchester
Guildford
Worthing

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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