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Heathrow

$320+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LHR
juin 4 — juin 111
jeu. 6/4
jeu. 6/11
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 mai 5, 2026.

This United Airlines deal was found by Cheapflights users on 5/1. 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.
mar. 11/106:02 pm
JLN
-
LHR
2 stops34h 13m
United Airlines
ven. 11/136:50 am
LHR
-
JLN
2 stops22h 29m
United Airlines
Deal found 5/1$781
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
mar. 8/43:16 pm
MCI
-
LHR
2 stops19h 09m
SWISS
mar. 9/156:00 am
LHR
-
MCI
2 stops17h 34m
SWISS
Deal found 4/30$840
This Travelocity deal was found by Cheapflights users on 5/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/299:35 pm
STL
-
LHR
Nonstop8h 00m
Iberia
mer. 10/146:15 am
LHR
-
STL
2 stops19h 53m
Iberia
Deal found 5/4$859
This FlightHub deal was found by Cheapflights users on 5/3. 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.
mar. 11/1010:10 am
MCI
-
LHR
2 stops23h 50m
Scandinavian Airlines
ven. 11/206:40 am
LHR
-
MCI
2 stops23h 18m
Scandinavian Airlines
Deal found 5/3$860
This The Travel House deal was found by Cheapflights users on 4/30. 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.
mar. 10/201:30 pm
STL
-
LHR
2 stops20h 30m
Scandinavian Airlines
sam. 10/246:40 am
LHR
-
STL
2 stops22h 59m
Scandinavian Airlines
Deal found 4/30$860
This The Travel House deal was found by Cheapflights users on 5/1. 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.
mar. 8/259:59 am
MCI
-
LHR
2 stops41h 21m
Scandinavian Airlines
mer. 9/95:00 pm
LHR
-
MCI
2 stops36h 52m
Scandinavian Airlines
Deal found 5/1$863
This oojo deal was found by Cheapflights users on 5/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/79:35 pm
STL
-
LHR
Nonstop8h 00m
British Airways
jeu. 10/157:50 am
LHR
-
STL
2 stops18h 18m
British Airways
Deal found 5/1$866
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/64:13 pm
STL
-
LHR
1 stop10h 37m
Delta
mar. 10/138:40 am
LHR
-
STL
2 stops17h 57m
Delta
Deal found 4/30$868
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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.
mar. 10/69:35 pm
STL
-
LHR
Nonstop8h 00m
British Airways
mer. 10/144:25 pm
LHR
-
STL
Nonstop9h 05m
British Airways
Deal found 5/4$869
This Bookaflight.co.il deal was found by Cheapflights users on 5/2. 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 Bookaflight.co.il is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/291:30 pm
STL
-
LHR
1 stop11h 45m
Virgin Atlantic
mar. 10/69:20 am
LHR
-
STL
1 stop12h 38m
Virgin Atlantic
Deal found 5/2$870
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/99:59 am
MCI
-
LHR
2 stops24h 01m
Scandinavian Airlines
lun. 11/166:40 am
LHR
-
MCI
2 stops23h 18m
Scandinavian Airlines
Deal found 4/30$871
This Expedia deal was found by Cheapflights users on 5/3. 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.
dim. 8/169:40 pm
STL
-
LHR
Nonstop8h 00m
Multiple Airlines
mar. 9/16:30 am
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Deal found 5/3$871

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 mai 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$840
(Cheapflightsfares)

One-way from

$320
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$1,003

Good round-trip deal

$1,067 or less

Good one-way deal

$514 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 May 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.
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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 mai 5, 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

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mer. 10/7

7:20 am-6:25 am

1 stop17h 05m

London Heathrow

mar. 10/13

8:40 am-8:37 pm

2 stops17h 57m

$868

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mer. 9/16

1:30 pm-1:15 pm

1 stop17h 45m

London Heathrow

ven. 9/25

6:30 am-4:55 pm

2 stops16h 25m

$868

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mer. 10/21

9:00 am-7:15 am

1 stop16h 15m

London Heathrow

ven. 10/30

6:30 am-6:01 pm

2 stops16h 31m

$869

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mer. 9/16

1:30 pm-10:20 am

2 stops14h 50m

London Heathrow

mar. 9/22

9:55 am-8:50 pm

2 stops16h 55m

$873

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mar. 9/8

7:20 am-7:10 am

2 stops17h 50m

London Heathrow

mar. 9/22

9:55 am-8:50 pm

2 stops16h 55m

$873

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mar. 8/11

11:00 am-7:55 am

2 stops14h 55m

London Heathrow

ven. 8/21

6:30 am-4:17 pm

2 stops15h 47m

$873

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

mar. 9/1

5:00 pm-11:35 am

1 stop12h 35m

London Heathrow

jeu. 9/10

6:50 am-6:00 pm

2 stops17h 10m

$878

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

mer. 10/21

6:00 am-8:50 am

2 stops20h 50m

London Heathrow

ven. 10/30

10:00 am-11:11 am

2 stops30h 11m

$889

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mer. 8/26

5:30 pm-1:05 pm

1 stop13h 35m

London Heathrow

dim. 9/6

6:30 am-4:45 pm

2 stops16h 15m

$918

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mer. 9/16

1:30 pm-1:15 pm

1 stop17h 45m

London Heathrow

lun. 10/12

8:40 am-11:18 pm

2 stops20h 38m

$918

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 59 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

How far ahead should I book a flight from Missouri to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Missouri to London Heathrow Airport, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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.

What is the cheapest time of day to fly from MO to LHR?

Find hourly flight availability from Missouri to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mai 5, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to London Heathrow Airport as you normally would.

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 17h 05m. The distance from Missouri to London Heathrow Airport is about 4186 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 most reliable airlines from Missouri to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Missouri to London Heathrow Airport consider choosing American Airlines (14%), Aer Lingus (14%) or Finnair (14%) as they are the most reliable in getting you off to your destination on time.

  • 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 $1,587, our data indicates the cheapest price to be $388. The most popular route (Lambert-St Louis - London Heathrow), is priced around $840.

  • 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

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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 mai 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$483Average$928FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$529Average$696FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$533Average$914FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$563Average$923FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$572Average$863FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$574Average$830FlexibilityNo cancel feeOn-time70%
IberiaCheapest$577Average$900FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$580Average$932FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$629Average$834FlexibilityNo cancel feeOn-time72%

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