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$198+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
dec. 13 — dec. 201
lør. 12/13
lør. 12/20
1 adult, Economy
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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 november 13, 2025.

This SmartFares deal was found by Cheapflights users on 11/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 12/811:40 amSTL - LHR
2 stops22h 20mScandinavian Airlines
man. 12/156:40 amLHR - STL
2 stops31h 44mScandinavian Airlines
Deal found 11/11$586
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
tor. 12/1112:04 pmSTL - LGW
2 stops15h 56mMultiple Airlines
søn. 1/112:10 pmLGW - STL
1 stop23h 40mMultiple Airlines
Deal found 11/12$587
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 12/83:30 pmSTL - LGW
1 stop12h 30mMultiple Airlines
fre. 1/92:00 pmLGW - STL
1 stop14h 33mMultiple Airlines
Deal found 11/11$590
This Delta deal was found by Cheapflights users on 11/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tir. 11/114:02 pmSGF - LHR
1 stop10h 58mDelta
ons. 11/266:30 amLHR - SGF
2 stops21h 43mDelta
Deal found 11/11$591
This KLM deal was found by Cheapflights users on 11/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tir. 11/114:02 pmSGF - LHR
1 stop10h 58mKLM
ons. 11/268:55 amLHR - SGF
1 stop19h 18mKLM
Deal found 11/11$597
This Flightnetwork deal was found by Cheapflights users on 11/12. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 11/174:05 pmSTL - LHR
2 stops18h 15mMultiple Airlines
ons. 12/36:30 amLHR - STL
1 stop13h 25mMultiple Airlines
Deal found 11/12$602
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre. 12/123:30 pmSTL - LGW
1 stop12h 30mMultiple Airlines
fre. 1/92:00 pmLGW - STL
1 stop14h 33mMultiple Airlines
Deal found 11/11$603
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
søn. 12/710:42 amSTL - LGW
2 stops37h 18mMultiple Airlines
lør. 1/102:00 pmLGW - STL
1 stop23h 50mMultiple Airlines
Deal found 11/11$605
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons. 12/107:43 pmSTL - LGW
2 stops32h 17mMultiple Airlines
lør. 1/102:00 pmLGW - STL
1 stop23h 50mMultiple Airlines
Deal found 11/11$609
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
søn. 12/710:42 amSTL - LGW
2 stops37h 18mMultiple Airlines
fre. 1/92:00 pmLGW - STL
1 stop14h 33mMultiple Airlines
Deal found 11/12$611
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons. 12/107:43 pmSTL - LGW
2 stops32h 17mMultiple Airlines
søn. 1/112:10 pmLGW - STL
1 stop23h 40mMultiple Airlines
Deal found 11/11$612
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
lør. 12/133:30 pmSTL - LGW
1 stop12h 35mMultiple Airlines
søn. 1/112:10 pmLGW - STL
1 stop23h 40mMultiple Airlines
Deal found 11/12$613

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 november 13, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$586
(SmartFares)

One-way from

$198
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$709

Good round-trip deal

$598 or less

Good one-way deal

$418 or less
Provider with most accurate pricing for Lambert-St Louis-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-London (LON) flights.
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From Missouri to London (LON)
Search Deals
One-way flight from Missouri to London (LON)
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($267 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Missouri to London (LON).
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Price to beat on a one-way flight from Missouri to London (LON).
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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 november 13, 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 - LGW

STLLGW

Lambert-St Louis

tor. 12/11

12:04 pm-10:00 am

2 stops15h 56m

London Gatwick

søn. 1/11

2:10 pm-7:50 am

1 stop23h 40m

$587

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

man. 12/8

10:47 am-10:00 am

2 stops17h 13m

London Gatwick

fre. 1/9

2:00 pm-10:33 pm

1 stop14h 33m

$591

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

søn. 1/18

6:00 am-9:00 am

1 stop21h 00m

London Heathrow

tir. 2/3

12:30 pm-9:46 pm

1 stop15h 16m

$604

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

ons. 12/10

7:43 pm-10:00 am

2 stops32h 17m

London Gatwick

tor. 1/8

2:00 pm-10:33 pm

1 stop14h 33m

$623

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

fre. 1/16

9:00 am-9:40 am

1 stop18h 40m

London Heathrow

man. 2/2

7:40 am-9:58 pm

2 stops20h 18m

$625

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

fre. 1/16

12:02 pm-9:00 am

1 stop14h 58m

London Heathrow

man. 2/2

8:40 am-9:46 pm

2 stops19h 06m

$626

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

man. 11/24

3:14 pm-7:55 am

1 stop10h 41m

London Heathrow

ons. 12/3

6:30 am-1:55 pm

1 stop13h 25m

$626

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

tir. 12/2

11:25 am-5:55 am

1 stop12h 30m

London Heathrow

tir. 12/9

6:50 am-3:40 pm

2 stops14h 50m

$627

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

man. 11/24

2:00 pm-11:40 am

1 stop15h 40m

London Heathrow

ons. 12/3

6:30 am-5:10 pm

2 stops16h 40m

$627

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

ons. 12/10

6:42 pm-11:15 am

1 stop10h 33m

London Heathrow

tir. 12/16

9:00 am-10:45 pm

2 stops19h 45m

$627

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 60 results
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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, 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 november 13, 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 Friday 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.

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 Delta, United Airlines, and Lufthansa fly from Missouri to London in about 16h 13m. The time it takes to get you to your destination can typically vary by up to 4h 47m. The distance from Missouri to London is about 4342 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Missouri to London one-way?

    $397 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on United Airlines and Virgin Atlantic, with prices starting from $399 and $433, 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 $1,174 for a flight from Missouri to London. The cheapest flight overall is $403 while the most popular route, (Lambert-St Louis - London Heathrow) is currently priced at $586.

  • 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?

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Alternative routes for Missouri to London

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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 november 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$529Average$755FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$573Average$929FlexibilityNo cancel feeOn-time67%
DeltaCheapest$580Average$946FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$580Average$938FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$581Average$913FlexibilityNo cancel feeOn-time70%
IberiaCheapest$597Average$943FlexibilityNo cancel feeOn-time77%
FinnairCheapest$599Average$813FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$602Average$1,102FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$620Average$875FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$636Average$979FlexibilityNo cancel feeOn-time71%

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