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Cheap flights from Missouri to London Heathrow Airport from £166

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LHR
2 Apr — 9 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Missouri to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Missouri to Heathrow
Explore the most affordable flight options available from Missouri to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 March 2026.

Sun 20/907:45
MCI
-
LHR
2 stops16h 50m
Multiple Airlines
Mon 21/919:30
LHR
-
MCI
2 stops29h 47m
Multiple Airlines
Deal found 2/3£424
Sun 20/911:20
MCI
-
LHR
2 stops16h 55m
United Airlines
Mon 21/914:50
LHR
-
MCI
1 stop14h 35m
United Airlines
Deal found 2/3£462
Sun 1/306:00
STL
-
LHR
1 stop18h 25m
Delta
Fri 13/311:45
LHR
-
STL
2 stops17h 13m
Delta
Deal found 26/2£486
Tue 8/912:10
STL
-
LHR
1 stop12h 20m
Multiple Airlines
Tue 15/906:30
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Deal found 28/2£488
Wed 2/912:10
STL
-
LHR
1 stop12h 20m
Multiple Airlines
Wed 9/906:30
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Deal found 1/3£489
Tue 4/815:16
MCI
-
LHR
2 stops20h 34m
SWISS
Tue 15/906:00
LHR
-
MCI
2 stops21h 40m
SWISS
Deal found 2/3£490
Wed 2/915:30
STL
-
LHR
1 stop19h 10m
Lufthansa
Wed 9/909:00
LHR
-
STL
2 stops18h 22m
Lufthansa
Deal found 1/3£490
Wed 19/815:30
STL
-
LHR
1 stop19h 10m
Lufthansa
Fri 28/806:30
LHR
-
STL
1 stop12h 55m
Lufthansa
Deal found 27/2£491
Mon 17/815:30
STL
-
LHR
1 stop20h 10m
Lufthansa
Mon 24/819:30
LHR
-
STL
1 stop23h 55m
Lufthansa
Deal found 27/2£492
Wed 4/311:25
STL
-
LHR
2 stops15h 55m
United Airlines
Tue 10/306:50
LHR
-
STL
2 stops16h 10m
United Airlines
Deal found 2/3£492
Wed 4/311:23
STL
-
LHR
1 stop13h 42m
Delta
Wed 18/306:30
LHR
-
STL
2 stops19h 36m
Delta
Deal found 2/3£493
Tue 5/518:54
STL
-
LHR
2 stops15h 46m
Lufthansa
Tue 19/519:30
LHR
-
STL
1 stop23h 55m
Lufthansa
Deal found 26/2£494

Find flight deals from Missouri to Heathrow

Keep the following information in mind while searching for Missouri to Heathrow flight deals. Data was last updated 3 March 2026.

Round-trip from

£490

One-way from

£166

Popular in

June

Cheapest in

January

Average price

£554
SWISS
  • SWISS
  • 4/8-15/9
  • 4 total stops
  • 42h 14m total
  • Missouri to London
Search Deals
British Airways
  • British Airways
  • 28/7
  • 1 total stop
  • 15h 39m total
  • Missouri to London
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£169 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Missouri to Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 3 March 2026.
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

Mon 30/3

12:04-06:25

1 stop12h 21m

London Heathrow

Fri 10/4

09:55-21:06

2 stops17h 11m

£504

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 12/8

14:52-11:35

1 stop14h 43m

London Heathrow

Fri 28/8

06:50-17:34

2 stops16h 44m

£506

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 30/3

18:05-09:40

1 stop33h 35m

London Heathrow

Tue 14/4

17:40-15:24

1 stop27h 44m

£515

JoplinLondon

JLN - LHR

JLNLHR

Joplin

Wed 19/8

08:42-06:45

1 stop16h 03m

London Heathrow

Tue 25/8

14:50-23:53

1 stop15h 03m

£519

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 15/4

11:15-06:45

1 stop13h 30m

London Heathrow

Wed 22/4

08:30-15:24

1 stop12h 54m

£524

JoplinLondon

JLN - LHR

JLNLHR

Joplin

Wed 6/5

09:06-10:15

2 stops19h 09m

London Heathrow

Tue 12/5

06:55-23:44

2 stops22h 49m

£534

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 6/5

17:42-13:50

2 stops14h 08m

London Heathrow

Wed 13/5

06:30-15:15

2 stops14h 45m

£542

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Tue 7/4

08:10-07:10

2 stops17h 00m

London Heathrow

Tue 21/4

06:30-17:00

2 stops16h 30m

£546

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 22/4

10:50-07:40

2 stops14h 50m

London Heathrow

Mon 27/4

08:40-20:44

2 stops18h 04m

£549

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Tue 12/5

06:15-11:35

1 stop23h 20m

London Heathrow

Tue 19/5

06:50-16:24

2 stops15h 34m

£551

Flights are sorted by cheapest return flights first.

Deals found on 26/2

Showing 1-10 of 56 resultsSorted by cheapest first
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Best time to book a flight from Missouri to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Missouri with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to London Heathrow Airport

What is the cheapest month to book a flight from Missouri to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Missouri to London Heathrow Airport (average of £395). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of £747). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Missouri to London Heathrow Airport?

    Departing from Missouri to London Heathrow Airport will take you 12h 21m. The distance from Missouri to London Heathrow Airport is about 4186 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Missouri to London Heathrow Airport?

    The most popular route from Missouri to London Heathrow Airport is Lambert-St Louis - London Heathrow. You may also consider Kansas City - London Heathrow or Springfield-Branson - London Heathrow.

  • Can I find deals for flights from Missouri to Heathrow that include hotel bookings?

    Yes. In addition to deals on Missouri to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Heathrow.

  • Can I find deals for business class flights from Missouri to Heathrow?

    Yes. Cheapflights offers flight deals from Missouri to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to London Heathrow Airport?

    Currently, February is the cheapest month in which you can book a flight from Missouri to London Heathrow Airport (average of £395). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of £747). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Wembley
Northampton
Luton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Chelmsford
Ipswich
Swindon
Bedford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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O'Hare Intl to Gatwick flights
Boston to Stansted flights
Newark to London City flights
Newark to Luton flights
O'Hare Intl to London City flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
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Philadelphia to Heathrow flights
O'Hare Intl to Stansted flights
Los Angeles to Stansted flights
San Francisco to Gatwick flights
Minneapolis to Heathrow flights
Charlotte to Heathrow flights
Tampa to Heathrow flights
Seattle to Gatwick flights
Dallas/Fort Worth to Gatwick flights
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Austin to Heathrow flights

Top 3 airlines flying from Missouri to Heathrow

Discover the top 3 airlines that operate flights from Missouri to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£410Average£572FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£432Average£693FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£477Average£771FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Missouri to Heathrow?

Cheapflights helps you search for flights from Missouri to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Missouri to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Missouri.

Can Cheapflights find flights from Missouri to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Missouri shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Missouri to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Missouri to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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