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$255+ Cheap flights from Missouri to London (LON)

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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Cheap flight deals from Missouri to London

Cheapest flights from Missouri to London
Explore the most affordable flight options available from Missouri to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/8. 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.
Wed 12/28:00 am
SGF
-
LHR
1 stop15h 55m
United Airlines
Thu 12/311:05 am
LHR
-
SGF
2 stops40h 18m
United Airlines
Deal found 3/8$585
This Mytrip deal was found by Cheapflights users on 3/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/304:05 pm
STL
-
LHR
1 stop32h 30m
Multiple Airlines
Fri 5/16:30 am
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Deal found 3/5$665
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:29 pm
STL
-
LGW
2 stops33h 31m
Multiple Airlines
Thu 4/92:00 pm
LGW
-
STL
1 stop15h 25m
Multiple Airlines
Deal found 3/5$688
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:21 am
STL
-
LGW
2 stops36h 59m
Multiple Airlines
Fri 5/82:00 pm
LGW
-
STL
1 stop15h 19m
Multiple Airlines
Deal found 3/6$693
This Gotogate deal was found by Cheapflights users on 3/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:10 pm
STL
-
LHR
2 stops14h 25m
Multiple Airlines
Wed 10/216:30 am
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Deal found 3/8$694
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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.
Mon 10/56:49 pm
STL
-
LHR
2 stops18h 51m
Lufthansa
Fri 10/166:30 am
LHR
-
STL
1 stop12h 55m
Lufthansa
Deal found 3/5$695
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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.
Mon 8/176:36 pm
MCI
-
LHR
2 stops19h 04m
Lufthansa
Fri 8/289:00 am
LHR
-
MCI
2 stops18h 40m
Lufthansa
Deal found 3/5$696
This Gotogate deal was found by Cheapflights users on 3/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:10 pm
STL
-
LHR
1 stop12h 20m
Multiple Airlines
Fri 10/166:30 am
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Deal found 3/6$699
This Cheapflightsfares deal was found by Cheapflights users on 3/8. 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 8/47:53 am
MCI
-
LHR
2 stops26h 32m
SWISS
Tue 9/156:40 pm
LHR
-
MCI
2 stops33h 00m
SWISS
Deal found 3/8$700
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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 9/23:30 pm
STL
-
LHR
1 stop19h 10m
Lufthansa
Wed 9/97:25 am
LHR
-
STL
2 stops19h 57m
Lufthansa
Deal found 3/5$700
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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 10/63:30 pm
STL
-
LHR
1 stop20h 10m
Lufthansa
Tue 10/136:30 am
LHR
-
STL
1 stop12h 55m
Lufthansa
Deal found 3/5$701
This Norse deal was found by Cheapflights users on 3/8. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:45 am
MCI
-
LGW
1 stop22h 15m
Multiple Airlines
Fri 4/102:00 pm
LGW
-
MCI
1 stop15h 53m
Multiple Airlines
Deal found 3/8$701

Find flight deals from Missouri to London

Keep the following information in mind while searching for Missouri to London flight deals. Data was last updated March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$665
(Mytrip)

One-way from

$255
(Booking.com)

Popular in

June

Cheapest in

January

Average price

$740

Good round-trip deal

$856 or less

Good one-way deal

$444 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 (LON)
Search Deals
One-way flight from Missouri to London (LON)
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($295 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Missouri to London (LON).
Search Deals
Price to beat on a one-way flight from Missouri to London (LON).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to London 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 March 10, 2026.
Use the filters below to find and compare flights from Missouri to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Thu 4/2

5:45 am-10:00 am

1 stop22h 15m

London Gatwick

Fri 4/10

2:00 pm-11:53 pm

1 stop15h 53m

$701

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 3/30

5:25 pm-1:05 pm

1 stop13h 40m

London Heathrow

Fri 4/10

6:30 am-5:05 pm

2 stops16h 35m

$724

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 4/21

1:46 pm-7:10 am

1 stop11h 24m

London Heathrow

Thu 4/30

8:40 am-8:44 pm

2 stops18h 04m

$724

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 3/30

9:45 am-7:10 am

2 stops15h 25m

London Heathrow

Wed 4/8

6:30 am-5:05 pm

2 stops16h 35m

$728

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 4/13

10:50 am-8:50 am

2 stops16h 00m

London Heathrow

Tue 4/28

9:55 am-9:19 pm

2 stops17h 24m

$728

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 8/19

2:52 pm-11:35 am

1 stop14h 43m

London Heathrow

Wed 8/26

2:05 pm-7:17 pm

2 stops35h 12m

$734

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Wed 8/19

7:45 am-5:55 pm

2 stops28h 10m

London Gatwick

Wed 8/26

6:35 pm-9:40 pm

2 stops33h 05m

$735

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Wed 4/8

6:29 am-9:25 am

2 stops20h 56m

London Gatwick

Wed 4/15

10:25 am-9:19 pm

2 stops16h 54m

$735

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 3/30

4:49 pm-7:40 am

1 stop32h 51m

London Heathrow

Tue 4/7

12:05 pm-3:25 pm

1 stop33h 20m

$738

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 4/21

6:30 am-11:55 am

1 stop23h 25m

London Heathrow

Thu 4/30

5:40 pm-8:04 pm

1 stop32h 24m

$738

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Missouri to London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Currently, April is the cheapest month in which you can book a flight from Missouri to London (average of $514). Flying from Missouri to London in June is currently the most expensive (average of $1,020). 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?

Related info for your journey

Find useful and relevant information for your journey from Missouri to London. 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?

    Airlines like United Airlines, Delta, and SWISS fly from Missouri to London in about 13h 40m. The time it takes to get you to your destination can typically vary by up to 14h 30m. The distance from Missouri to London is about 4186 mi. This flight may include one or multiple stops.

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

    $224 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and British Airways, with prices starting from $254 and $397, respectively.

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

    The most popular flight routes from Missouri to London are Lambert-St Louis - London Heathrow, Kansas City - London Heathrow and Lambert-St Louis - London Gatwick.

  • What are the cheapest flights from Missouri to London?

    On average you can expect to pay $1,525 for a flight from Missouri to London. The cheapest flight overall is $222 while the most popular route, (Lambert-St Louis - London Heathrow) is currently priced at $701.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Missouri to London 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?

    Currently, April is the cheapest month in which you can book a flight from Missouri to London (average of $514). Flying from Missouri to London in June is currently the most expensive (average of $1,020). 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?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton
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 10 airlines flying from Missouri to London

Discover the top 10 airlines that operate flights from Missouri to London. 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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$529Average$705FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$533Average$871FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$538Average$848FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$563Average$966FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$572Average$899FlexibilityNo cancel feeOn-time67%
DeltaCheapest$577Average$928FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$580Average$940FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$580Average$915FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$602Average$1,102FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$620Average$710FlexibilityNo cancel feeOn-time72%

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