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Cheap flights from Missouri to London Heathrow Airport from £237

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 16/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LHR
19 May — 26 May1
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 19 April 2026.

Mon 7/1215:03
SGF
-
LHR
1 stop14h 12m
United Airlines
Wed 9/1211:05
LHR
-
SGF
2 stops53h 29m
United Airlines
Deal found 18/4£548
Sat 7/1117:45
MCI
-
LHR
2 stops21h 35m
United Airlines
Mon 9/1112:05
LHR
-
MCI
2 stops50h 46m
United Airlines
Deal found 18/4£564
Fri 30/1018:37
MCI
-
LHR
2 stops54h 53m
Multiple Airlines
Tue 3/1106:30
LHR
-
MCI
2 stops15h 54m
Multiple Airlines
Deal found 18/4£572
Mon 2/1113:30
STL
-
LHR
2 stops23h 00m
Scandinavian Airlines
Wed 11/1106:40
LHR
-
STL
2 stops22h 59m
Scandinavian Airlines
Deal found 14/4£592
Tue 10/1110:10
MCI
-
LHR
2 stops17h 10m
Scandinavian Airlines
Wed 18/1106:40
LHR
-
MCI
2 stops23h 18m
Scandinavian Airlines
Deal found 14/4£598
Tue 4/815:16
MCI
-
LHR
2 stops19h 09m
SWISS
Tue 15/906:00
LHR
-
MCI
2 stops17h 34m
SWISS
Deal found 14/4£620
Wed 19/807:45
MCI
-
LHR
2 stops18h 10m
SWISS
Thu 27/806:00
LHR
-
MCI
2 stops17h 34m
SWISS
Deal found 16/4£622
Tue 10/1110:10
MCI
-
LHR
2 stops23h 50m
Scandinavian Airlines
Thu 19/1119:30
LHR
-
MCI
2 stops34h 28m
Scandinavian Airlines
Deal found 14/4£623
Wed 26/812:10
STL
-
LHR
1 stop12h 20m
Air Canada
Wed 2/908:40
LHR
-
STL
2 stops16h 02m
Air Canada
Deal found 14/4£626
Wed 21/1019:05
STL
-
LHR
1 stop12h 10m
KLM
Fri 20/1111:45
LHR
-
STL
2 stops17h 33m
KLM
Deal found 18/4£634
Tue 20/1015:36
MCI
-
LHR
2 stops18h 24m
Scandinavian Airlines
Wed 28/1006:40
LHR
-
MCI
2 stops22h 18m
Scandinavian Airlines
Deal found 15/4£635
Tue 29/921:35
STL
-
LHR
Nonstop8h 00m
Iberia
Tue 27/1007:30
LHR
-
STL
2 stops17h 38m
Iberia
Deal found 19/4£635

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 19 April 2026.

Round-trip from

£620

One-way from

£237

Popular in

June

Cheapest in

January

Average price

£549
Scandinavian Airlines
  • Scandinavian Airlines
  • 6/9-18/9
  • 5 total stops
  • 51h 55m total
  • Missouri to London
Search Deals
British Airways
  • British Airways
  • 16/8
  • Nonstop
  • 8h 00m total
  • Missouri to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£163 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 19 April 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

Cheapest return flight

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 8/9

06:45-07:10

1 stop18h 25m

London Heathrow

Wed 16/9

08:40-20:31

2 stops17h 51m

£641

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 7/10

10:45-07:10

1 stop14h 25m

London Heathrow

Tue 13/10

06:30-16:50

2 stops16h 20m

£641

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 2/9

13:30-10:20

2 stops14h 50m

London Heathrow

Fri 11/9

09:55-20:50

2 stops16h 55m

£645

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 12/5

13:05-10:00

1 stop14h 55m

London Heathrow

Tue 19/5

06:50-18:12

2 stops17h 22m

£646

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Mon 14/9

15:36-13:15

1 stop15h 39m

London Heathrow

Wed 23/9

06:30-17:13

2 stops16h 43m

£649

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Sat 22/8

19:55-21:20

2 stops19h 25m

London Heathrow

Tue 29/9

14:05-14:39

2 stops30h 34m

£660

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Mon 21/9

12:00-10:40

1 stop16h 40m

London Heathrow

Tue 22/9

16:00-23:57

1 stop13h 57m

£671

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Mon 21/9

17:22-12:25

1 stop13h 03m

London Heathrow

Wed 23/9

11:25-18:29

1 stop13h 04m

£671

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Wed 30/9

11:40-09:50

2 stops16h 10m

London Heathrow

Wed 7/10

08:20-18:10

2 stops15h 50m

£673

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Thu 17/9

15:42-11:20

2 stops13h 38m

London Heathrow

Thu 24/9

09:55-20:31

2 stops16h 36m

£683

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 55 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, April is the cheapest month in which you can book a flight from Missouri to London Heathrow Airport (average of £87). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of £686). 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.

How much does it cost for a return flight from Missouri to London Heathrow Airport?

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 14h 55m. 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, April is the cheapest month in which you can book a flight from Missouri to London Heathrow Airport (average of £87). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of £686). 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
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Chelmsford
Ipswich
Southend-on-Sea

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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Los Angeles to Stansted flights
Los Angeles to London City flights
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Miami to Heathrow flights
Dulles Intl to Gatwick flights
Denver to Heathrow flights
Dulles Intl to London City flights
Los Angeles to Gatwick flights
LaGuardia to Stansted flights
San Francisco to Gatwick flights
Philadelphia to Heathrow flights
Reagan-National to Gatwick flights
Ontario to Heathrow flights
George Bush Intcntl to Heathrow flights
Baltimore to Gatwick flights
Minneapolis to Heathrow flights
San Francisco to Stansted flights
San Francisco to London City flights
Newark to London City flights
Los Angeles to Luton flights
Tampa to Heathrow flights
Orlando to Gatwick flights
O'Hare Intl to Gatwick flights
Seattle to Gatwick 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 19 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£406Average£558FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£428Average£665FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£473Average£955FlexibilityNo 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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