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$315+ Cheap flights from Missouri to Heathrow (LHR)

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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LHR
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
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Cheap flight deals from Missouri to Heathrow

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 April 22, 2026.

This United Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:22 am
SGF
-
LHR
1 stop17h 53m
United Airlines
Wed 12/911:05 am
LHR
-
SGF
2 stops40h 18m
United Airlines
Deal found 4/19$736
This United Airlines deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:45 pm
MCI
-
LHR
2 stops21h 35m
United Airlines
Mon 11/912:05 pm
LHR
-
MCI
2 stops50h 46m
United Airlines
Deal found 4/18$763
This Orbitz deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:37 pm
MCI
-
LHR
2 stops54h 53m
Multiple Airlines
Tue 11/36:30 am
LHR
-
MCI
2 stops15h 54m
Multiple Airlines
Deal found 4/18$774
This Cheapflightsfares deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/43:16 pm
MCI
-
LHR
2 stops20h 34m
SWISS
Tue 9/156:00 am
LHR
-
MCI
2 stops17h 34m
SWISS
Deal found 4/19$840
This Cheapflightsfares deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:45 am
MCI
-
LHR
2 stops18h 10m
SWISS
Thu 8/276:00 am
LHR
-
MCI
2 stops17h 34m
SWISS
Deal found 4/17$841
This Cheapflightsfares deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:42 pm
STL
-
LHR
2 stops18h 18m
Scandinavian Airlines
Wed 11/186:40 am
LHR
-
STL
2 stops22h 59m
Scandinavian Airlines
Deal found 4/21$849
This Cheapflightsfares deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:30 pm
STL
-
LHR
2 stops20h 30m
Scandinavian Airlines
Tue 10/206:40 am
LHR
-
STL
2 stops20h 09m
Scandinavian Airlines
Deal found 4/19$850
This Expedia deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:05 pm
STL
-
LHR
1 stop12h 10m
KLM
Tue 10/1311:45 am
LHR
-
STL
2 stops35h 21m
KLM
Deal found 4/21$858
This The Travel House deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:30 am
MCI
-
LHR
2 stops29h 00m
Scandinavian Airlines
Tue 11/35:00 pm
LHR
-
MCI
2 stops36h 58m
Scandinavian Airlines
Deal found 4/21$859
This Expedia deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:35 pm
STL
-
LHR
Nonstop8h 00m
Iberia
Tue 10/206:15 am
LHR
-
STL
2 stops19h 53m
Iberia
Deal found 4/20$859
This FlightHub deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:36 pm
MCI
-
LHR
2 stops20h 04m
Scandinavian Airlines
Sat 10/246:40 am
LHR
-
MCI
2 stops23h 18m
Scandinavian Airlines
Deal found 4/21$860
This Justfly.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:30 pm
SGF
-
LHR
2 stops18h 30m
Scandinavian Airlines
Tue 10/276:40 pm
LHR
-
SGF
2 stops32h 52m
Scandinavian Airlines
Deal found 4/20$860

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 April 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$840
(Cheapflightsfares)

One-way from

$315
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$743

Good round-trip deal

$986 or less

Good one-way deal

$511 or less
Provider with most accurate pricing for Lambert-St Louis-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-London (LON) flights.
Search Deals
From Missouri to London Heathrow
Search Deals
One-way flight from Missouri to London Heathrow
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($298 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Missouri to London Heathrow.
Search Deals
Price to beat on a one-way flight from Missouri to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated April 22, 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 round-trip

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Mon 9/14

3:36 pm-1:15 pm

1 stop15h 39m

London Heathrow

Wed 9/23

6:30 am-5:13 pm

2 stops16h 43m

$878

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Sun 9/13

8:00 am-6:25 am

1 stop16h 25m

London Heathrow

Thu 9/24

9:55 am-9:10 pm

2 stops17h 15m

$878

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Mon 9/21

12:00 pm-10:40 am

1 stop16h 40m

London Heathrow

Tue 9/22

4:00 pm-11:57 pm

1 stop13h 57m

$907

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Mon 9/21

5:22 pm-12:25 pm

1 stop13h 03m

London Heathrow

Wed 9/23

11:25 am-6:29 pm

1 stop13h 04m

$907

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Thu 9/17

9:59 am-6:45 am

1 stop14h 46m

London Heathrow

Thu 9/24

9:55 am-9:10 pm

2 stops17h 15m

$928

ColumbiaLondon

COU - LHR

COULHR

Columbia Regional

Wed 8/19

11:43 am-6:50 am

1 stop13h 07m

London Heathrow

Mon 8/24

11:10 am-6:45 pm

1 stop13h 35m

$947

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Mon 9/21

1:13 pm-6:25 am

1 stop11h 12m

London Heathrow

Sat 9/26

11:15 am-9:01 pm

1 stop15h 46m

$957

JoplinLondon

JLN - LHR

JLNLHR

Joplin

Sun 9/13

1:54 pm-11:50 am

2 stops15h 56m

London Heathrow

Sun 9/20

2:05 pm-11:53 pm

2 stops39h 48m

$967

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Thu 8/20

5:22 pm-12:25 pm

1 stop13h 03m

London Heathrow

Mon 8/24

7:25 am-5:34 pm

2 stops16h 09m

$978

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Thu 9/17

6:23 am-7:45 am

1 stop19h 22m

London Heathrow

Mon 9/21

8:00 am-2:17 pm

1 stop12h 17m

$1,007

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 50 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 round-trip 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 $117). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of $928). 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 to fly round-trip 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 13h 50m. The distance from Missouri to London Heathrow Airport is about 4376 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Missouri to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as $224 on American Airlines. Other airlines that offer cheap prices include United Airlines from $284 and Delta from $284 one-way.

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

    When deciding which route to take from Missouri to London Heathrow Airport consider Lambert-St Louis - London Heathrow, Kansas City - London Heathrow or Springfield-Branson - London Heathrow as they are the most popular.

  • What are the cheapest flights from Missouri to London Heathrow Airport?

    Looking for the cheapest flight from Missouri to London Heathrow Airport? While on average our users pay $1,564, our data indicates the cheapest price to be $363. The most popular route (Lambert-St Louis - London Heathrow), is priced around $860.

  • 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 vacation 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 $117). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of $928). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from Missouri to Heathrow

Discover the top 9 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 2,558,603 searches. Data last updated April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$483Average$943FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$529Average$696FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$533Average$907FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$538Average$821FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$563Average$999FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$572Average$862FlexibilityNo cancel feeOn-time67%
IberiaCheapest$577Average$936FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$580Average$932FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$629Average$809FlexibilityNo cancel feeOn-time72%

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