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$220+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Sun 12/149:54 amSTL - LGW
1 stop18h 06mMultiple Airlines
Fri 1/92:00 pmLGW - STL
1 stop14h 33mMultiple Airlines
Deal found 10/30$573
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Mon 12/89:54 amSTL - LGW
1 stop18h 06mMultiple Airlines
Sat 1/102:00 pmLGW - STL
1 stop14h 33mMultiple Airlines
Deal found 10/30$576
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Thu 12/113:30 pmSTL - LGW
1 stop12h 30mMultiple Airlines
Sat 1/102:00 pmLGW - STL
1 stop14h 33mMultiple Airlines
Deal found 10/30$593
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/123:50 pmSTL - LHR
1 stop11h 55mLufthansa
Wed 11/196:30 amLHR - STL
1 stop13h 25mLufthansa
Deal found 10/29$598
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Sat 12/133:30 pmSTL - LGW
1 stop12h 35mMultiple Airlines
Thu 1/82:00 pmLGW - STL
1 stop23h 50mMultiple Airlines
Deal found 10/30$602
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Mon 12/810:47 amSTL - LGW
2 stops17h 13mMultiple Airlines
Thu 1/82:00 pmLGW - STL
1 stop14h 33mMultiple Airlines
Deal found 10/30$607
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 11/266:43 pmSTL - LHR
2 stops15h 07mLufthansa
Wed 12/36:30 amLHR - STL
1 stop13h 25mLufthansa
Deal found 10/30$618
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:50 pmSTL - LGW
2 stops20h 40mMultiple Airlines
Tue 11/187:55 pmLGW - STL
2 stops24h 00mMultiple Airlines
Deal found 10/28$618
This United Airlines deal was found by Cheapflights users on 10/29. 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 10/293:05 pmSGF - LHR
1 stop14h 10mUnited Airlines
Wed 11/126:35 amLHR - SGF
2 stops21h 38mUnited Airlines
Deal found 10/29$619
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/1111:26 amSGF - LHR
1 stop17h 49mUnited Airlines
Wed 11/266:50 amLHR - SGF
2 stops21h 23mUnited Airlines
Deal found 10/30$620
This Gotogate deal was found by Cheapflights users on 10/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/264:05 pmSTL - LHR
1 stop13h 15mMultiple Airlines
Wed 12/36:30 amLHR - STL
1 stop13h 25mMultiple Airlines
Deal found 10/29$622
This Gotogate deal was found by Cheapflights users on 10/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:05 pmSTL - LHR
1 stop13h 15mMultiple Airlines
Wed 11/196:30 amLHR - STL
1 stop13h 25mMultiple Airlines
Deal found 10/29$623

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 October 30, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$573
(Kiwi.com)

One-way from

$220
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$740

Good round-trip deal

$597 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.
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. 21% potential increase in price ($257 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 30, 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

Mon 12/8

3:30 pm-10:00 am

1 stop12h 30m

London Gatwick

Thu 1/8

2:00 pm-7:50 am

1 stop23h 50m

$576

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Mon 12/8

9:54 am-10:00 am

1 stop18h 06m

London Gatwick

Sat 1/10

2:00 pm-10:33 pm

1 stop14h 33m

$576

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Thu 12/11

3:30 pm-10:00 am

1 stop12h 30m

London Gatwick

Thu 1/8

2:00 pm-7:50 am

1 stop23h 50m

$593

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Sun 1/18

6:00 am-9:00 am

1 stop21h 00m

London Heathrow

Tue 2/3

6:20 am-9:46 pm

2 stops21h 26m

$600

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Wed 2/18

5:05 pm-11:40 am

1 stop12h 35m

London Heathrow

Tue 2/24

6:30 am-4:29 pm

2 stops15h 59m

$601

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Sat 12/13

3:30 pm-10:05 am

1 stop12h 35m

London Gatwick

Sat 1/10

2:00 pm-10:33 pm

1 stop14h 33m

$602

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Thu 12/11

12:04 pm-10:00 am

2 stops15h 56m

London Gatwick

Sat 1/10

2:00 pm-10:33 pm

1 stop14h 33m

$615

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Fri 11/14

3:50 pm-6:30 pm

2 stops20h 40m

London Gatwick

Tue 11/18

7:55 pm-1:55 pm

2 stops24h 00m

$618

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Tue 11/11

6:15 am-10:15 am

1 stop22h 00m

London Heathrow

Wed 11/26

6:35 am-10:13 pm

2 stops21h 38m

$619

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Sun 12/7

4:08 pm-11:40 am

1 stop13h 32m

London Heathrow

Sun 12/14

10:45 am-6:13 pm

1 stop13h 28m

$624

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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 October 30, 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.

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, KLM, and United Airlines fly from Missouri to London in about 11h 51m. The time it takes to get you to your destination can typically vary by up to 9h 09m. The distance from Missouri to London is about 4186 mi. This flight may include one or multiple stops.

  • 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 $634 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 $598.

  • 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
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton

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Alternative routes for Missouri to London

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 30, 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$580Average$911FlexibilityNo cancel feeOn-time70%
IberiaCheapest$597Average$932FlexibilityNo 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$637Average$980FlexibilityNo cancel feeOn-time71%

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