HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$257+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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

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 December 12, 2025.

This Gotogate deal was found by Cheapflights users on 12/9. 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.
Thu 12/116:30 amSTL - LHR
2 stops18h 40mMultiple Airlines
Thu 12/181:35 pmLHR - STL
1 stop32h 52mMultiple Airlines
Deal found 12/9$702
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Thu 12/1111:25 amSTL - LHR
1 stop12h 30mUnited Airlines
Thu 12/187:40 amLHR - STL
1 stop12h 46mUnited Airlines
Deal found 12/9$708
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 12/3011:24 amMCI - LHR
1 stop14h 31mLufthansa
Tue 1/138:30 amLHR - MCI
2 stops19h 29mLufthansa
Deal found 12/10$748
This Netflights deal was found by Cheapflights users on 12/10. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1510:41 amMCI - LHR
1 stop16h 04mVirgin Atlantic
Thu 1/1512:30 pmLHR - MCI
1 stop13h 32mVirgin Atlantic
Deal found 12/10$781
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/101:30 pmMCI - LHR
1 stop14h 10mUnited Airlines
Tue 12/2312:05 pmLHR - MCI
2 stops59h 36mUnited Airlines
Deal found 12/10$789
This Delta deal was found by Cheapflights users on 12/10. 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.
Mon 12/155:12 pmMCI - LHR
1 stop12h 28mDelta
Thu 1/1510:00 amLHR - MCI
2 stops17h 03mDelta
Deal found 12/10$793
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Tue 12/161:40 pmMCI - LHR
1 stop14h 00mUnited Airlines
Tue 1/131:25 pmLHR - MCI
2 stops31h 02mUnited Airlines
Deal found 12/10$800
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 12/165:00 pmMCI - LHR
1 stop11h 25mBritish Airways
Tue 1/1311:00 amLHR - MCI
1 stop13h 03mBritish Airways
Deal found 12/10$802
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Tue 12/236:35 pmMCI - LHR
1 stop29h 20mUnited Airlines
Thu 1/151:25 pmLHR - MCI
2 stops27h 07mUnited Airlines
Deal found 12/10$806
This FlightHub deal was found by Cheapflights users on 12/10. 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.
Wed 12/105:45 pmMCI - LHR
1 stop11h 05mLufthansa
Tue 12/231:35 pmLHR - MCI
1 stop14h 15mLufthansa
Deal found 12/10$808
This oojo deal was found by Cheapflights users on 12/11. 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.
Tue 12/306:36 pmMCI - LHR
1 stop11h 24mBritish Airways
Tue 1/133:45 pmLHR - MCI
1 stop12h 54mBritish Airways
Deal found 12/11$809
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/161:00 pmSTL - LHR
1 stop12h 55mLufthansa
Tue 12/237:25 amLHR - STL
1 stop15h 02mLufthansa
Deal found 12/8$816

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 December 12, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$596
(Cheapflightsfares)

One-way from

$257
(American Airlines)

Popular in

June

Cheapest in

November

Average price

$1,049

Good round-trip deal

$675 or less

Good one-way deal

$280 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. 24% potential increase in price ($285 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 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

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Fri 1/16

3:14 pm-11:15 am

1 stop14h 01m

London Heathrow

Mon 2/2

7:40 am-9:58 pm

2 stops20h 18m

$596

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Sat 1/24

3:14 pm-7:55 am

1 stop10h 41m

London Heathrow

Sat 1/31

10:25 am-9:58 pm

1 stop17h 33m

$604

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Mon 2/16

6:45 am-9:00 am

2 stops20h 15m

London Gatwick

Mon 2/23

11:20 am-11:59 pm

2 stops18h 39m

$620

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Wed 2/25

4:24 pm-10:00 am

1 stop35h 36m

London Gatwick

Thu 3/5

2:00 pm-4:20 pm

2 stops32h 20m

$623

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Sun 2/15

6:22 pm-11:15 am

1 stop10h 53m

London Heathrow

Sun 2/22

7:30 pm-9:59 pm

2 stops32h 29m

$625

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Fri 1/30

5:45 pm-10:50 am

1 stop11h 05m

London Heathrow

Tue 2/3

6:50 am-9:59 pm

2 stops21h 09m

$627

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 3/11

4:25 pm-10:15 am

1 stop12h 50m

London Heathrow

Tue 3/17

6:50 am-5:22 pm

2 stops15h 32m

$627

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Thu 1/22

11:29 am-5:55 am

1 stop12h 26m

London Heathrow

Thu 1/29

6:50 am-7:56 pm

2 stops19h 06m

$627

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 3/18

3:05 pm-10:15 am

1 stop14h 10m

London Heathrow

Tue 3/24

6:50 am-7:47 pm

2 stops17h 57m

$627

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Fri 1/30

1:28 pm-9:40 am

1 stop14h 12m

London Heathrow

Tue 2/3

6:50 am-9:58 pm

2 stops21h 08m

$627

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

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, September is the cheapest month in which you can book a flight from Missouri to London (average of $530). Flying from Missouri to London in June is currently the most expensive (average of $1,001). 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 December 12, 2025.

It’s typically best to fly out from Missouri to London in the evening. Doing so could potentially save you 16% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Missouri to London?

Use this chart to determine the cheapest time to fly round-trip from Missouri to London. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Missouri to London flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 Lufthansa, American Airlines, and United Airlines fly from Missouri to London in about 11h 05m. The time it takes to get you to your destination can typically vary by up to 9h 10m. The distance from Missouri to London is about 4325 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 British Airways and United Airlines, with prices starting from $397 and $398, 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 Kansas City - London Gatwick.

  • What are the cheapest flights from Missouri to London?

    On average you can expect to pay $734 for a flight from Missouri to London. The cheapest flight overall is $278 while the most popular route, (Lambert-St Louis - London Heathrow) is currently priced at $591.

  • 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, September is the cheapest month in which you can book a flight from Missouri to London (average of $530). Flying from Missouri to London in June is currently the most expensive (average of $1,001). 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
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley
Folkestone
Eastbourne

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
John F Kennedy Intl to Gatwick flights
LaGuardia to Heathrow flights
Boston to Heathrow flights
John F Kennedy Intl to London City flights
Newark to Gatwick flights
LaGuardia to Gatwick flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to Stansted flights
O'Hare Intl to Heathrow flights
San Francisco to Heathrow flights
John F Kennedy Intl to Luton flights
Dallas/Fort Worth to Heathrow flights
Baltimore to Heathrow flights
Seattle to Heathrow flights
Boston to Gatwick flights
Miami to Heathrow flights
Newark to London City flights
Boston to London City flights
Newark to Stansted flights
Hobby to Heathrow flights
Newark to Luton flights
Atlanta to Heathrow flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Orlando to Heathrow flights
Denver to Heathrow flights
Philadelphia to Heathrow flights
Dulles Intl to London City flights
Los Angeles to Gatwick flights
Minneapolis to Heathrow flights
O'Hare Intl to Gatwick flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
Los Angeles to London City flights
Boston to Stansted flights
O'Hare Intl to London City flights
San Francisco to Gatwick flights
Tampa to Heathrow flights
Reagan-National to Gatwick flights
Dulles Intl to Stansted flights
Austin to Heathrow flights
San Francisco to London City flights
Detroit to Heathrow flights
Charlotte to Heathrow flights
Newark to Edinburgh flights
Dallas/Fort Worth to Gatwick flights
Orlando to Gatwick 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$529Average$791FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$573Average$945FlexibilityNo cancel feeOn-time67%
DeltaCheapest$577Average$927FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$580Average$931FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$580Average$899FlexibilityNo cancel feeOn-time70%
IberiaCheapest$597Average$972FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$602Average$987FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$615Average$845FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$634Average$1,016FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$670Average$898FlexibilityNo cancel feeOn-time76%

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.