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$218+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
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 July 30, 2026.

This United Airlines deal was found by Cheapflights users on 7/28. 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 11/113:19 pm
MCI
-
LHR
1 stop10h 36m
United Airlines
Fri 11/136:50 am
LHR
-
MCI
2 stops17h 58m
United Airlines
Deal found 7/28$746
This Expedia deal was found by Cheapflights users on 7/28. 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.
Wed 11/116:40 pm
MCI
-
LCY
2 stops17h 00m
Lufthansa
Fri 11/139:50 am
LCY
-
MCI
2 stops16h 49m
Lufthansa
Deal found 7/28$780
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Sun 11/296:40 pm
SGF
-
LHR
1 stop31h 15m
United Airlines
Wed 12/26:35 am
LHR
-
SGF
2 stops16h 44m
United Airlines
Deal found 7/28$854
This lol.travel deal was found by Cheapflights users on 7/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:20 pm
MCI
-
LHR
1 stop18h 05m
Finnair
Thu 11/510:05 am
LHR
-
MCI
1 stop14h 26m
Finnair
Deal found 7/28$865
This Expedia deal was found by Cheapflights users on 7/27. 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.
Tue 10/136:39 pm
MCI
-
LHR
2 stops15h 01m
Multiple Airlines
Tue 10/208:45 am
LHR
-
MCI
2 stops19h 19m
Multiple Airlines
Deal found 7/27$866
This Expedia deal was found by Cheapflights users on 7/27. 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.
Tue 10/1311:56 am
MCI
-
LHR
1 stop13h 54m
Iberia
Tue 10/208:00 pm
LHR
-
MCI
2 stops34h 18m
Iberia
Deal found 7/27$869
This lol.travel deal was found by Cheapflights users on 7/27. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/211:03 pm
MCI
-
LHR
1 stop14h 02m
Finnair
Tue 10/69:45 am
LHR
-
MCI
1 stop19h 11m
Finnair
Deal found 7/27$872
This United Airlines deal was found by Cheapflights users on 7/29. 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 10/281:25 pm
SGF
-
LHR
1 stop15h 15m
United Airlines
Wed 11/46:50 am
LHR
-
SGF
2 stops17h 08m
United Airlines
Deal found 7/29$874
This Delta deal was found by Cheapflights users on 7/28. 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 10/2812:33 pm
MCI
-
LHR
1 stop13h 32m
Delta
Wed 11/411:45 am
LHR
-
MCI
2 stops15h 04m
Delta
Deal found 7/28$875
This Expedia deal was found by Cheapflights users on 7/28. 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.
Wed 10/2811:57 am
MCI
-
LHR
1 stop13h 53m
Iberia
Wed 11/48:20 am
LHR
-
MCI
1 stop17h 23m
Iberia
Deal found 7/28$877
This United Airlines deal was found by Cheapflights users on 7/28. 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 11/189:45 am
MCI
-
LHR
2 stops15h 25m
United Airlines
Thu 12/36:35 am
LHR
-
MCI
2 stops16h 44m
United Airlines
Deal found 7/28$878
This Virgin Atlantic deal was found by Cheapflights users on 7/28. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:38 pm
MCI
-
LHR
2 stops14h 07m
Virgin Atlantic
Wed 11/411:45 am
LHR
-
MCI
2 stops15h 04m
Virgin Atlantic
Deal found 7/28$879

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 July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$746
(United Airlines)

One-way from

$218
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,330

Good round-trip deal

$977 or less

Good one-way deal

$456 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. 27% potential increase in price ($337 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 July 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 July 30, 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

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Sun 11/29

6:40 pm-7:55 am

1 stop31h 15m

London Heathrow

Wed 12/2

6:35 am-5:19 pm

2 stops16h 44m

$855

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Tue 9/29

12:20 pm-10:20 am

2 stops16h 00m

London Heathrow

Tue 10/20

9:55 am-8:18 pm

2 stops16h 23m

$888

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Mon 9/28

5:30 pm-11:20 am

1 stop11h 50m

London Heathrow

Tue 10/6

10:45 am-4:52 pm

1 stop12h 07m

$912

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Sat 10/10

6:39 pm-6:45 am

1 stop30h 06m

London Heathrow

Thu 10/22

4:00 pm-11:44 pm

1 stop13h 44m

$918

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 9/23

5:39 pm-10:40 am

1 stop11h 01m

London Heathrow

Mon 9/28

11:05 am-7:46 pm

2 stops38h 41m

$926

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Sat 10/10

2:10 pm-7:10 am

1 stop11h 00m

London Heathrow

Thu 10/22

6:30 am-5:35 pm

2 stops17h 05m

$934

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Tue 9/15

5:44 am-7:15 am

1 stop19h 31m

London Heathrow

Wed 9/23

9:55 am-9:19 pm

2 stops17h 24m

$935

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Sat 10/17

6:25 pm-9:00 am

1 stop32h 35m

London Heathrow

Sun 10/25

7:30 am-9:56 pm

2 stops19h 26m

$950

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Thu 10/15

3:05 pm-8:30 am

1 stop11h 25m

London Heathrow

Tue 10/27

10:25 am-5:58 pm

1 stop12h 33m

$963

Kansas CityLondon

MCI - LCY

MCILCY

Kansas City

Tue 8/25

11:22 am-8:40 am

2 stops15h 18m

London City

Tue 9/1

9:15 am-9:44 pm

2 stops18h 29m

$964

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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, October is the cheapest month in which you can book a flight from Missouri to London (average of $703). Flying from Missouri to London in June is currently the most expensive (average of $1,432). 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 July 30, 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 as you normally would.

How much does it cost to fly round-trip from Missouri to London?

Airfare is above average for this route at the moment.
Missouri to London flights typically cost between $643 and $952 in August.
The cheapest round-trip price found within the last 5 days was $966 on Multiple Airlines (Aug 23-Aug 30).

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

The best time to book flights from Missouri to London is 9 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 Virgin Atlantic fly from Missouri to London in about 11h 50m. The time it takes to get you to your destination can typically vary by up to 19h 25m. 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 United Airlines, with prices starting from $284 and $284, 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 most reliable airlines from Missouri to London?

    The top 3 most reliable airlines when flying from Missouri to London are American Airlines (65%), Aer Lingus (65%) and Finnair (65%).

  • What are the cheapest flights from Missouri to London?

    On average you can expect to pay $1,630 for a flight from Missouri to London. The cheapest flight overall is $322 while the most popular route, (Lambert-St Louis - London Heathrow) is currently priced at $721.

  • 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, October is the cheapest month in which you can book a flight from Missouri to London (average of $703). Flying from Missouri to London in June is currently the most expensive (average of $1,432). 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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Wembley
Harrow
Eastleigh
Southend-on-Sea
Watford
Dartford
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
Harlow

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Top 9 airlines flying from Missouri to London

Discover the top 9 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 July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$483Average$968FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$497Average$815FlexibilityNo cancel feeOn-time72%
IberiaCheapest$529Average$960FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$572Average$962FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$580Average$1,002FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$581Average$881FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$629Average$945FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$635Average$1,127FlexibilityNo cancel feeOn-time76%
KLMCheapest$677Average$766FlexibilityNo cancel feeOn-time75%

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