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Cheap flights from Missouri to London from £208

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to London departing on 29/9. 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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Cheap return flights

Delta Logo
10:45 - 08:50STL-LHR
16h 05m2 stops
Delta Logo
06:30 - 16:46LHR-STL
16h 16m2 stops
£390Delta
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Tue, 14 Oct - Wed, 22 Oct
Air Canada Logo
16:05 - 08:30STL-LHR
10h 25m1 stop
Air Canada Logo
13:00 - 15:29LHR-STL
32h 29m1 stop
£391Air Canada
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Mon, 19 Jan - Fri, 30 Jan
United Airlines Logo
13:30 - 06:30STL-LHR
11h 00m1 stop
United Airlines Logo
17:50 - 15:44LHR-STL
27h 54m2 stops
£391United Airlines
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Tue, 14 Oct - Mon, 20 Oct
Iberia Logo
11:51 - 07:00STL-LHR
13h 09m1 stop
Iberia Logo
10:15 - 21:00LHR-STL
16h 45m1 stop
£392Iberia
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Wed, 12 Nov - Tue, 18 Nov
United Airlines Logo
06:30 - 06:30STL-LHR
18h 00m2 stops
United Airlines Logo
17:50 - 15:44LHR-STL
27h 54m2 stops
£394United Airlines
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Tue, 14 Oct - Mon, 20 Oct
Multiple Airlines Logo
09:15 - 06:30STL-LHR
15h 15m2 stops
Multiple Airlines Logo
06:50 - 15:18LHR-STL
14h 28m2 stops
£402Multiple Airlines
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Thu, 16 Oct - Thu, 23 Oct
Multiple Airlines Logo
09:15 - 06:35STL-LHR
15h 20m1 stop
Multiple Airlines Logo
06:50 - 15:18LHR-STL
14h 28m2 stops
£408Multiple Airlines
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Thu, 16 Oct - Thu, 23 Oct
Iberia Logo
11:58 - 08:15STL-LHR
14h 17m1 stop
Iberia Logo
19:40 - 09:57LHR-STL
20h 17m2 stops
£413Iberia
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Thu, 15 Jan - Mon, 26 Jan
Lufthansa Logo
15:30 - 12:40STL-LHR
15h 10m1 stop
Lufthansa Logo
20:25 - 15:44LHR-STL
25h 19m2 stops
£414Lufthansa
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Sun, 5 Oct - Mon, 13 Oct
Lufthansa Logo
12:25 - 10:40STL-LHR
16h 15m2 stops
Lufthansa Logo
20:25 - 15:44LHR-STL
25h 19m2 stops
£417Lufthansa
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Sun, 5 Oct - Mon, 13 Oct

Air Canada flights from Missouri to London Heathrow Airport

Our best Air Canada deals on Missouri to London Heathrow Airport flight tickets
Air Canada
19 Jan
STL16:05Lambert-St Louis
10h 25m
1 stop
LHR08:30London Heathrow
30 Jan
LHR13:00London Heathrow
32h 29m
1 stop
STL15:29Lambert-St Louis
£391
Find similar
Air Canada
28 Sept
STL09:15Lambert-St Louis
15h 15m
2 stops
LHR06:30London Heathrow
14 Oct
LHR09:30London Heathrow
16h 13m
2 stops
STL19:43Lambert-St Louis
£391
Find similar
Air Canada
28 Sept
STL13:30Lambert-St Louis
16h 20m
2 stops
LHR11:50London Heathrow
14 Oct
LHR09:30London Heathrow
16h 13m
2 stops
STL19:43Lambert-St Louis
£392
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Virgin Atlantic flights from Missouri to London Heathrow Airport

Our best Virgin Atlantic deals on Missouri to London Heathrow Airport flight tickets
Virgin Atlantic
11 Feb
STL10:45Lambert-St Louis
15h 20m
2 stops
LHR08:05London Heathrow
15 Feb
LHR08:40London Heathrow
17h 59m
2 stops
STL20:39Lambert-St Louis
£433
Find similar
Virgin Atlantic
21 Sept
MCI17:26Kansas City
14h 04m
1 stop
LHR13:30London Heathrow
2 Oct
LHR09:20London Heathrow
13h 01m
1 stop
MCI16:21Kansas City
£633
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momondo Fare Finder

 
Customise your flight search to find flights from Missouri to London Heathrow Airport 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 19 September 2025.
Use the filters below to find and compare flights from Missouri to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 14/10

10:45-08:50

2 stops16h 05m

London Heathrow

Wed 22/10

06:30-16:46

2 stops16h 16m

£390

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 19/1

16:05-08:30

1 stop10h 25m

London Heathrow

Fri 30/1

13:00-15:29

1 stop32h 29m

£391

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 14/10

13:30-06:30

1 stop11h 00m

London Heathrow

Mon 20/10

17:50-15:44

2 stops27h 54m

£391

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 12/11

11:51-07:00

1 stop13h 09m

London Heathrow

Tue 18/11

10:15-21:00

1 stop16h 45m

£392

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 14/10

06:30-06:30

2 stops18h 00m

London Heathrow

Mon 20/10

17:50-15:44

2 stops27h 54m

£394

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Thu 16/10

09:15-06:30

2 stops15h 15m

London Heathrow

Thu 23/10

06:50-15:18

2 stops14h 28m

£402

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Thu 16/10

09:15-06:35

1 stop15h 20m

London Heathrow

Thu 23/10

06:50-15:18

2 stops14h 28m

£408

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Thu 15/1

11:58-08:15

1 stop14h 17m

London Heathrow

Mon 26/1

19:40-09:57

2 stops20h 17m

£413

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Sun 5/10

15:30-12:40

1 stop15h 10m

London Heathrow

Mon 13/10

20:25-15:44

2 stops25h 19m

£414

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Sun 5/10

12:25-10:40

2 stops16h 15m

London Heathrow

Mon 13/10

20:25-15:44

2 stops25h 19m

£417

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Missouri 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 to London Heathrow Airport?

In general, October is the cheapest month to fly from Missouri to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £544. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from Missouri averaging around £573.

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 Missouri is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £547. 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 £1,300.

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 Missouri to London Heathrow Airport in the morning for as low as £662. 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 £820 on average. Flights to London Heathrow Airport from Missouri 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 Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £677 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Missouri for as low as £553 on momondo.

Can stopping save me money on Missouri to London Heathrow Airport flights?

You could potentially save up to 3% on your flight if you consider stops on a Missouri to London Heathrow Airport flight.

Cheap Missouri to London Heathrow Airport flight deals and tips

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

Direct flights

None
There are no direct flights from Missouri to London Heathrow Airport. There are no popular flight routes from Missouri to London Heathrow Airport.
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  • When did momondo last update prices for flights from Missouri to London Heathrow Airport?

    Prices for flights from Missouri to London Heathrow Airport were last updated today.

  • How many operators does momondo search for flights from Missouri to London Heathrow Airport?

  • How old do you have to be to fly from Missouri 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 Missouri to London Heathrow Airport.

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

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

Best airlines flying from Missouri to London Heathrow Airport

Compare and see reviews for airlines that fly from Missouri to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £428Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
Air CanadaPriceFrom £430Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
KLMPriceFrom £442Free CancellationRating
7.8
1,386 reviews
Search KLM flights
LufthansaPriceFrom £462Free CancellationRating
6.8
7,415 reviews
Search Lufthansa flights
United AirlinesPriceFrom £471Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
British AirwaysPriceFrom £485Free CancellationRating
6.7
7,373 reviews
Search British Airways flights

Travelling to a place near London?

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

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to London?

It is quick and easy to find Missouri to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Missouri to London with flexible booking policies on momondo?

All flight searches from Missouri to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Missouri to London?

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 Missouri to London.

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

Of course. momondo tracks the price of Missouri to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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