HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$216+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
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 February 4, 2026.

This Norse deal was found by Cheapflights users on 2/1. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/15:45 am
MCI
-
LGW
1 stop22h 15m
Multiple Airlines
Wed 4/222:00 pm
LGW
-
MCI
1 stop15h 59m
Multiple Airlines
Deal found 2/1$625
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:55 am
STL
-
LHR
1 stop13h 55m
KLM
Mon 3/98:25 pm
LHR
-
STL
2 stops25h 07m
KLM
Deal found 2/1$630
This Cheapflightsfares deal was found by Cheapflights users on 2/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:37 pm
MCI
-
LHR
2 stops18h 13m
Lufthansa
Wed 3/116:30 am
LHR
-
MCI
2 stops19h 11m
Lufthansa
Deal found 2/3$632
This Cheapflightsfares deal was found by Cheapflights users on 2/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:55 pm
STL
-
LHR
2 stops17h 40m
Lufthansa
Fri 3/136:30 am
LHR
-
STL
2 stops16h 30m
Lufthansa
Deal found 2/2$632
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/51:15 pm
MCI
-
LHR
1 stop16h 00m
United Airlines
Thu 3/126:50 am
LHR
-
MCI
2 stops20h 09m
United Airlines
Deal found 2/4$633
This Delta deal was found by Cheapflights users on 2/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:35 am
MCI
-
LHR
1 stop18h 50m
Delta
Wed 3/116:30 am
LHR
-
MCI
2 stops16h 04m
Delta
Deal found 2/4$634
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/51:15 pm
MCI
-
LHR
1 stop16h 00m
United Airlines
Tue 3/106:50 am
LHR
-
MCI
2 stops15h 32m
United Airlines
Deal found 2/2$635
This Cheapflightsfares deal was found by Cheapflights users on 2/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:49 pm
STL
-
LHR
2 stops17h 36m
Lufthansa
Tue 8/256:30 am
LHR
-
STL
1 stop12h 55m
Lufthansa
Deal found 2/3$636
This Flighttix deal was found by Cheapflights users on 2/3. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:55 pm
STL
-
LHR
1 stop10h 20m
Lufthansa
Wed 3/46:30 am
LHR
-
STL
1 stop13h 25m
Lufthansa
Deal found 2/3$637
This Mytrip deal was found by Cheapflights users on 2/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:05 pm
STL
-
STN
2 stops14h 40m
Multiple Airlines
Tue 4/281:15 pm
STN
-
STL
3 stops30h 10m
Multiple Airlines
Deal found 2/2$637
This Cheapflightsfares deal was found by Cheapflights users on 2/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/306:35 pm
STL
-
LHR
2 stops17h 50m
Lufthansa
Fri 4/106:30 am
LHR
-
STL
1 stop12h 55m
Lufthansa
Deal found 2/2$638
This Gotogate deal was found by Cheapflights users on 2/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/237:41 am
STL
-
LHR
2 stops17h 29m
Multiple Airlines
Wed 3/46:30 am
LHR
-
STL
1 stop13h 25m
Multiple Airlines
Deal found 2/1$639

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$625
(Norse)

One-way from

$216
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$800

Good round-trip deal

$669 or less

Good one-way deal

$465 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. 26% potential increase in price ($311 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 4, 2026.
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

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Wed 4/1

5:45 am-10:00 am

1 stop22h 15m

London Gatwick

Wed 4/22

2:00 pm-11:59 pm

1 stop15h 59m

$625

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Thu 3/5

1:15 pm-11:15 am

1 stop16h 00m

London Heathrow

Thu 3/12

6:50 am-9:59 pm

2 stops20h 09m

$633

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Thu 3/5

2:12 pm-8:45 am

1 stop12h 33m

London Heathrow

Wed 3/18

6:30 am-7:19 pm

2 stops17h 49m

$634

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Thu 3/5

1:15 pm-11:15 am

1 stop16h 00m

London Heathrow

Tue 3/10

6:50 am-5:22 pm

2 stops15h 32m

$635

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Tue 4/21

4:05 pm-12:45 pm

2 stops14h 40m

London Stansted

Tue 4/28

1:15 pm-1:25 pm

3 stops30h 10m

$637

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Thu 3/5

10:41 am-6:55 am

2 stops14h 14m

London Heathrow

Thu 3/12

6:30 am-7:19 pm

2 stops17h 49m

$640

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 2/9

6:00 am-6:25 am

1 stop18h 25m

London Heathrow

Wed 2/25

11:45 am-8:43 pm

2 stops14h 58m

$645

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 5/6

7:00 am-1:20 pm

2 stops24h 20m

London Heathrow

Wed 5/13

10:50 am-9:59 pm

2 stops17h 09m

$647

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Sat 2/7

3:11 pm-7:10 am

2 stops33h 59m

London Heathrow

Wed 2/25

6:50 am-9:40 pm

2 stops20h 50m

$647

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 2/24

11:25 am-6:40 am

2 stops13h 15m

London Heathrow

Wed 3/4

6:35 am-5:44 pm

2 stops17h 09m

$648

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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, February is the cheapest month in which you can book a flight from Missouri to London (average of $518). Flying from Missouri to London in June is currently the most expensive (average of $1,000). 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 British Airways fly from Missouri to London in about 12h 03m. The time it takes to get you to your destination can typically vary by up to 8h 02m. 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 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 $1,085 for a flight from Missouri to London. The cheapest flight overall is $321 while the most popular route, (Lambert-St Louis - London Heathrow) is currently priced at $622.

  • 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, February is the cheapest month in which you can book a flight from Missouri to London (average of $518). Flying from Missouri to London in June is currently the most expensive (average of $1,000). 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
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
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
John F Kennedy Intl to Gatwick flights
Boston to Heathrow flights
LaGuardia to Heathrow flights
Dulles Intl to Heathrow flights
Newark to Gatwick flights
John F Kennedy Intl to London City flights
Los Angeles to Heathrow flights
O'Hare Intl to Heathrow flights
John F Kennedy Intl to Stansted flights
San Francisco to Heathrow flights
Baltimore to Heathrow flights
Seattle to Heathrow flights
Dallas/Fort Worth to Heathrow flights
LaGuardia to Gatwick flights
Boston to Gatwick flights
John F Kennedy Intl to Luton flights
Atlanta to Heathrow flights
Orlando to Heathrow flights
Miami to Heathrow flights
Reagan-National to Heathrow flights
Boston to London City flights
Hobby to Heathrow flights
Newark to Stansted flights
Dulles Intl to Gatwick flights
Newark to London City flights
Denver to Heathrow flights
Newark to Luton flights
Dulles Intl to London City flights
Dulles Intl to Stansted flights
Boston to Stansted flights
Philadelphia to Heathrow flights
Baltimore to Gatwick flights
Minneapolis to Heathrow flights
O'Hare Intl to Gatwick flights
Los Angeles to Gatwick flights
Newark to Edinburgh flights
John F Kennedy Intl to Edinburgh flights
Reagan-National to Gatwick flights
Austin to Heathrow flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to London City flights
Tampa to Heathrow flights
San Francisco to Gatwick flights
O'Hare Intl to Stansted flights
Los Angeles to Stansted flights
Detroit to Heathrow flights
Seattle to Gatwick flights
Los Angeles to London City 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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$529Average$683FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$533Average$882FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$573Average$965FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$574Average$899FlexibilityNo cancel feeOn-time70%
DeltaCheapest$577Average$939FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$580Average$980FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$580Average$927FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$596Average$977FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$602Average$1,102FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$615Average$846FlexibilityNo cancel feeOn-time72%

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.
Site
©2026 Cheapflights