HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$230+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missouri to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Missouri to London

Keep the following information in mind while searching for Missouri to London flight deals. Data was last updated septiembre 17, 2025.

Round-trip from

$530
(Delta)

One-way from

$230
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$782
From Missouri to London (LON)
Search Deals
One-way flight from Missouri to London (LON)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 septiembre 17, 2025.

This Delta deal was found by Cheapflights users on 9/14. 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. 10/1410:45 amSTL - LHR
2 stops16h 05mDelta
mié. 10/226:30 amLHR - STL
2 stops16h 59mDelta
Deal found 9/14$530
This Air Canada deal was found by Cheapflights users on 9/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/114:05 pmSTL - LHR
2 stops33h 05mAir Canada
mar. 11/181:25 pmLHR - STL
2 stops32h 04mAir Canada
Deal found 9/16$531
This Delta deal was found by Cheapflights users on 9/15. 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.
dom. 11/28:53 amSTL - LHR
1 stop16h 12mDelta
mar. 11/1110:45 amLHR - STL
1 stop13h 50mDelta
Deal found 9/15$532
This Air Canada deal was found by Cheapflights users on 9/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1810:00 amSTL - LHR
2 stops14h 30mAir Canada
mié. 11/266:00 pmLHR - STL
1 stop27h 29mAir Canada
Deal found 9/16$535
This United Airlines deal was found by Cheapflights users on 9/16. 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.
lun. 12/83:19 pmSTL - LHR
2 stops14h 01mUnited Airlines
mar. 12/168:00 amLHR - STL
2 stops17h 48mUnited Airlines
Deal found 9/16$543
This Delta deal was found by Cheapflights users on 9/15. 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.
mié. 11/191:55 pmSTL - LHR
2 stops13h 05mDelta
vie. 12/59:00 amLHR - STL
2 stops18h 03mDelta
Deal found 9/15$556
This United Airlines deal was found by Cheapflights users on 9/15. 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.
mié. 11/194:05 pmSTL - LHR
1 stop10h 25mUnited Airlines
dom. 11/239:00 amLHR - STL
2 stops37h 35mUnited Airlines
Deal found 9/15$561
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/111:30 pmSTL - LHR
1 stop11h 00mAir Canada
mar. 10/216:50 amLHR - STL
2 stops14h 28mAir Canada
Deal found 9/15$563
This United Airlines deal was found by Cheapflights users on 9/15. 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.
dom. 10/55:15 amSTL - LHR
1 stop25h 05mUnited Airlines
dom. 10/123:50 pmLHR - STL
1 stop33h 58mUnited Airlines
Deal found 9/15$566
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/51:30 pmSTL - LHR
1 stop11h 00mAir Canada
dom. 10/129:30 amLHR - STL
1 stop16h 27mAir Canada
Deal found 9/14$567
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
sáb. 10/45:15 amMCI - LGW
1 stop22h 45mMultiple Airlines
jue. 10/92:00 pmLGW - MCI
1 stop13h 59mMultiple Airlines
Deal found 9/16$569
This Delta deal was found by Cheapflights users on 9/16. 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.
mié. 10/810:45 amSTL - LCY
2 stops14h 30mDelta
mié. 10/157:45 amLCY - STL
2 stops15h 01mDelta
Deal found 9/16$583

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 septiembre 17, 2025.
Use the filters below to find and compare flights from Missouri to London that are best for you.

Fly from

Missouri

Fly to

London

Route

Depart

Return

Price

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mar. 10/14

10:45 am-8:50 am

2 stops16h 05m

London Heathrow

mié. 10/22

6:30 am-5:29 pm

2 stops16h 59m

$530

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mié. 1/21

4:05 pm-8:30 am

1 stop10h 25m

London Heathrow

jue. 1/29

6:00 pm-3:29 pm

1 stop27h 29m

$531

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mar. 11/11

4:05 pm-7:10 am

2 stops33h 05m

London Heathrow

mar. 11/18

1:25 pm-3:29 pm

2 stops32h 04m

$531

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

lun. 12/8

1:00 pm-5:55 am

1 stop10h 55m

London Heathrow

mar. 12/16

10:25 am-5:03 pm

1 stop12h 38m

$532

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

dom. 11/2

8:53 am-7:05 am

1 stop16h 12m

London Heathrow

mar. 11/11

10:45 am-6:35 pm

1 stop13h 50m

$532

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

lun. 1/19

11:51 am-9:00 am

1 stop15h 09m

London Heathrow

mié. 1/28

11:45 am-8:39 pm

2 stops14h 54m

$534

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mar. 1/20

10:00 am-9:00 am

1 stop17h 00m

London Heathrow

mié. 1/28

11:45 am-8:39 pm

2 stops14h 54m

$534

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

lun. 1/19

7:30 am-7:50 am

1 stop18h 20m

London Heathrow

jue. 1/29

6:30 am-4:50 pm

2 stops16h 20m

$534

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mié. 1/21

10:45 am-8:45 am

1 stop16h 00m

London Heathrow

mar. 1/27

11:45 am-8:39 pm

2 stops14h 54m

$534

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

lun. 1/19

10:00 am-7:50 am

1 stop15h 50m

London Heathrow

mar. 1/27

11:45 am-8:39 pm

2 stops14h 54m

$534

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 60 results
1
2
3
...
6

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, November is the cheapest month in which you can book a flight from Missouri to London (average of $661). Flying from Missouri to London in June is currently the most expensive (average of $1,097). 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 LON?

Find hourly flight availability from Missouri to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

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

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 Delta, Air Canada, and United Airlines fly from Missouri to London in about 10h 25m. The time it takes to get you to your destination can typically vary by up to 5h 40m. 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?

    $346 is the cheapest one-way deal found within the past few days, from Scandinavian Airlines. You may also be able to find cheap deals on United Airlines and Lufthansa, with prices starting from $435 and $438, 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.

  • 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, November is the cheapest month in which you can book a flight from Missouri to London (average of $661). Flying from Missouri to London in June is currently the most expensive (average of $1,097). 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
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Wembley
Folkestone
Chichester
Eastbourne
Sutton

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.

Alternative routes for Missouri to London

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
Boston to Heathrow flights
Dulles Intl to Heathrow flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
Los Angeles to Heathrow flights
Newark to Gatwick flights
Dallas/Fort Worth to Heathrow flights
John F Kennedy Intl to Gatwick flights
San Francisco to Heathrow flights
O'Hare Intl to Heathrow flights
Baltimore to Heathrow flights
LaGuardia to Gatwick flights
Newark to London City flights
Seattle to Heathrow flights
Hobby to Heathrow flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to Luton flights
Miami to Heathrow flights
Boston to London City flights
Boston to Gatwick flights
Reagan-National to Heathrow flights
Philadelphia to Heathrow flights
Atlanta to Heathrow flights
Dulles Intl to Gatwick flights
Newark to Stansted flights
Newark to Luton flights
Denver to Heathrow flights
Orlando to Heathrow flights
Dulles Intl to London City flights
George Bush Intcntl to Heathrow flights
Baltimore to Gatwick flights
Dallas/Fort Worth to Gatwick flights
Reagan-National to Gatwick flights
Los Angeles to London City flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
Newark to Edinburgh flights
Boston to Stansted flights
O'Hare Intl to London City flights
Los Angeles to Gatwick flights
Boston to Luton flights
LaGuardia to London City flights
Minneapolis to Heathrow flights
San Francisco to London City flights
Dulles Intl to Stansted flights
Hobby to Gatwick flights
John F Kennedy Intl to Edinburgh flights
Raleigh to Heathrow flights

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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$530Average$758FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$580Average$920FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$590Average$950FlexibilityNo cancel feeOn-time70%
FinnairCheapest$599Average$813FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$620Average$875FlexibilityNo cancel feeOn-time72%
DeltaCheapest$631Average$953FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$634Average$942FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$637Average$1,008FlexibilityNo cancel feeOn-time71%
IberiaCheapest$658Average$947FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$669Average$1,102FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.