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$223+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
Apr 1 — Apr 81
Wed 4/1
Wed 4/8
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 2, 2026.

This Orbitz deal was found by Cheapflights users on 3/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:45 am
MCI
-
LHR
2 stops16h 50m
Multiple Airlines
Mon 9/217:30 pm
LHR
-
MCI
2 stops29h 47m
Multiple Airlines
Deal found 3/2$569
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Sun 9/2011:20 am
MCI
-
LHR
2 stops16h 55m
United Airlines
Mon 9/212:50 pm
LHR
-
MCI
1 stop14h 35m
United Airlines
Deal found 3/2$620
This Gotogate deal was found by Cheapflights users on 2/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:10 pm
STL
-
LHR
1 stop12h 20m
Multiple Airlines
Tue 9/156:30 am
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Deal found 2/28$654
This Gotogate deal was found by Cheapflights users on 3/1. 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.
Wed 9/212:10 pm
STL
-
LHR
1 stop12h 20m
Multiple Airlines
Wed 9/96:30 am
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Deal found 3/1$655
This Cheapflightsfares deal was found by Cheapflights users on 3/2. 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.
Tue 8/43:16 pm
MCI
-
LHR
2 stops20h 34m
SWISS
Tue 9/156:00 am
LHR
-
MCI
2 stops21h 40m
SWISS
Deal found 3/2$657
This Cheapflightsfares deal was found by Cheapflights users on 3/1. 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 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 9/99:00 am
LHR
-
STL
2 stops18h 22m
Lufthansa
Deal found 3/1$657
This Cheapflightsfares deal was found by Cheapflights users on 2/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:30 pm
STL
-
LHR
1 stop20h 10m
Lufthansa
Mon 8/247:30 pm
LHR
-
STL
1 stop23h 55m
Lufthansa
Deal found 2/27$659
This United Airlines deal was found by Cheapflights users on 2/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/411:25 am
STL
-
LHR
1 stop14h 30m
United Airlines
Tue 3/106:50 am
LHR
-
STL
2 stops14h 33m
United Airlines
Deal found 2/27$660
This Mytrip deal was found by Cheapflights users on 2/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:05 pm
STL
-
STN
2 stops19h 00m
Multiple Airlines
Mon 4/206:30 am
STN
-
STL
2 stops14h 55m
Multiple Airlines
Deal found 2/27$660
This Delta deal was found by Cheapflights users on 3/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/411:23 am
STL
-
LHR
1 stop13h 42m
Delta
Wed 3/186:30 am
LHR
-
STL
2 stops19h 36m
Delta
Deal found 3/2$661
This Cheapflightsfares deal was found by Cheapflights users on 2/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:09 pm
STL
-
LHR
2 stops15h 31m
Lufthansa
Tue 5/199:00 am
LHR
-
STL
2 stops20h 57m
Lufthansa
Deal found 2/28$662
This Cheapflightsfares deal was found by Cheapflights users on 2/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:36 pm
MCI
-
LHR
2 stops17h 49m
Lufthansa
Tue 9/156:30 am
LHR
-
MCI
2 stops18h 47m
Lufthansa
Deal found 2/27$663

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 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$658
(Cheapflightsfares)

One-way from

$223
(oojo)

Popular in

June

Cheapest in

January

Average price

$743

Good round-trip deal

$857 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. 26% potential increase in price ($304 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 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 2, 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

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 8/12

3:30 pm-2:10 pm

1 stop16h 40m

London Heathrow

Fri 8/28

6:50 am-3:52 pm

2 stops15h 02m

$678

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Sun 5/10

5:59 pm-9:40 am

1 stop33h 41m

London Heathrow

Fri 5/22

5:40 pm-8:04 pm

1 stop32h 24m

$690

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 4/13

4:49 pm-7:40 am

1 stop32h 51m

London Heathrow

Tue 4/28

2:10 pm-3:25 pm

1 stop31h 15m

$691

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 5/5

4:06 pm-9:40 am

1 stop35h 34m

London Heathrow

Tue 5/19

5:40 pm-8:04 pm

1 stop32h 24m

$691

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 3/30

6:05 pm-9:40 am

1 stop33h 35m

London Heathrow

Tue 4/14

5:40 pm-3:24 pm

1 stop27h 44m

$691

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 4/15

11:15 am-6:45 am

1 stop13h 30m

London Heathrow

Wed 4/22

8:30 am-3:24 pm

1 stop12h 54m

$703

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 4/27

8:03 pm-12:15 pm

1 stop10h 12m

London Heathrow

Mon 5/4

9:35 pm-7:31 pm

2 stops27h 56m

$707

Kansas CityLondon

MCI - LCY

MCILCY

Kansas City

Wed 8/12

7:45 am-8:40 am

2 stops18h 55m

London City

Fri 8/28

9:15 am-9:40 pm

2 stops18h 25m

$714

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Sat 8/29

5:45 pm-6:55 am

1 stop31h 10m

London Heathrow

Tue 9/8

2:05 pm-7:17 pm

2 stops35h 12m

$725

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Tue 4/7

2:06 pm-7:10 am

1 stop11h 04m

London Heathrow

Tue 4/21

6:30 am-5:00 pm

2 stops16h 30m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

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, February 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.

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, SWISS, and Delta fly from Missouri to London in about 14h 43m. The time it takes to get you to your destination can typically vary by up to 4h 12m. 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 $1,214 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 $654.

  • 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 $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
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
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 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$529Average$720FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$533Average$871FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$538Average$861FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$563Average$982FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$572Average$932FlexibilityNo cancel feeOn-time67%
DeltaCheapest$577Average$928FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$580Average$971FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$580Average$921FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$602Average$1,102FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$620Average$707FlexibilityNo cancel feeOn-time72%

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