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$222+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:35 pmMCI - LHR
1 stop29h 20mUnited Airlines
Tue 1/131:25 pmLHR - MCI
2 stops31h 45mUnited Airlines
Deal found 12/3$583
This lastminute.com deal was found by Cheapflights users on 12/2. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:38 pmMCI - LHR
1 stop11h 02mVirgin Atlantic
Tue 12/169:40 amLHR - MCI
2 stops19h 30mVirgin Atlantic
Deal found 12/2$593
This FlightHub deal was found by Cheapflights users on 12/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:35 pmMCI - LHR
1 stop29h 20mLufthansa
Tue 1/1312:05 pmLHR - MCI
1 stop13h 51mLufthansa
Deal found 12/2$598
This KLM deal was found by Cheapflights users on 12/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1512:47 pmMCI - LHR
1 stop13h 03mKLM
Thu 1/1510:10 amLHR - MCI
1 stop15h 09mKLM
Deal found 12/2$618
This Delta deal was found by Cheapflights users on 12/2. 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.
Mon 12/155:50 amMCI - LHR
1 stop18h 35mDelta
Thu 1/158:40 amLHR - MCI
2 stops17h 22mDelta
Deal found 12/2$621
This United Airlines deal was found by Cheapflights users on 12/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:25 pmMCI - LHR
1 stop10h 30mUnited Airlines
Mon 12/151:25 pmLHR - MCI
2 stops31h 34mUnited Airlines
Deal found 12/3$628
This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:36 pmMCI - LHR
1 stop30h 44mBritish Airways
Thu 1/153:45 pmLHR - MCI
1 stop12h 54mBritish Airways
Deal found 12/3$630
This Cheapflightsfares deal was found by Cheapflights users on 12/1. 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 12/1011:36 amMCI - LHR
1 stop12h 19mLufthansa
Mon 12/1510:25 amLHR - MCI
1 stop13h 00mLufthansa
Deal found 12/1$633
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:50 amSTL - LHR
1 stop27h 30mAustrian Airlines
Tue 12/91:35 pmLHR - STL
1 stop33h 28mAustrian Airlines
Deal found 12/2$655
This Mytrip deal was found by Cheapflights users on 12/2. 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.
Fri 12/511:25 amSTL - LHR
2 stops15h 55mMultiple Airlines
Tue 12/96:35 amLHR - STL
2 stops16h 28mMultiple Airlines
Deal found 12/2$668
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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.
Wed 12/36:42 pmSTL - LHR
2 stops21h 38mLufthansa
Mon 12/86:30 amLHR - STL
2 stops16h 33mLufthansa
Deal found 12/2$670
This United Airlines deal was found by Cheapflights users on 12/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:30 amSTL - LHR
1 stop22h 45mUnited Airlines
Wed 1/76:00 pmLHR - STL
1 stop27h 29mUnited Airlines
Deal found 12/3$671

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 December 4, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$544
(Kiwi.com)

One-way from

$222
(Booking.com)

Popular in

June

Cheapest in

November

Average price

$1,129

Good round-trip deal

$690 or less

Good one-way deal

$280 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. 23% potential increase in price ($275 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 December 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 December 4, 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

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Wed 1/28

5:04 pm-10:00 am

1 stop34h 56m

London Gatwick

Fri 2/27

2:00 pm-3:29 pm

1 stop31h 29m

$523

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Sun 1/25

5:04 pm-10:00 am

1 stop34h 56m

London Gatwick

Fri 2/27

2:00 pm-3:29 pm

1 stop31h 29m

$526

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Wed 1/28

5:04 pm-10:00 am

1 stop34h 56m

London Gatwick

Wed 2/25

1:00 pm-10:11 am

2 stops51h 11m

$539

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Sun 1/25

5:04 pm-10:00 am

1 stop34h 56m

London Gatwick

Thu 2/26

2:00 pm-10:11 am

2 stops26h 11m

$548

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Thu 1/29

5:04 pm-10:00 am

1 stop34h 56m

London Gatwick

Fri 2/27

2:00 pm-7:51 pm

2 stops35h 51m

$548

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Sun 1/25

5:04 pm-10:00 am

1 stop34h 56m

London Gatwick

Wed 2/25

1:00 pm-10:11 am

2 stops51h 11m

$550

Kansas CityLondon

MCI - LGW

MCILGW

Kansas City

Wed 2/25

9:44 am-9:00 am

2 stops17h 16m

London Gatwick

Wed 3/4

12:30 pm-10:38 am

2 stops28h 08m

$569

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Sun 1/18

12:26 pm-8:15 am

1 stop13h 49m

London Heathrow

Tue 2/3

7:30 am-9:17 pm

2 stops19h 47m

$576

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Tue 12/30

6:35 pm-5:55 am

1 stop29h 20m

London Heathrow

Tue 1/13

1:25 pm-3:10 pm

2 stops31h 45m

$583

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Fri 1/16

3:14 pm-11:15 am

1 stop14h 01m

London Heathrow

Mon 2/2

7:40 am-9:58 pm

2 stops20h 18m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

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 December 4, 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 Tuesday 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 British Airways, United Airlines, and Lufthansa fly from Missouri to London in about 13h 49m. The time it takes to get you to your destination can typically vary by up to 15h 31m. The distance from Missouri to London is about 4376 mi. This flight may include one or multiple stops.

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

    $324 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 British Airways and United Airlines, with prices starting from $397 and $398, 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 cheapest flights from Missouri to London?

    On average you can expect to pay $1,100 for a flight from Missouri to London. The cheapest flight overall is $278 while the most popular route, (Lambert-St Louis - London Heathrow) is currently priced at $524.

  • 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
Ilford
Hounslow
Hayes
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Kingston upon Thames
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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$529Average$791FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$573Average$934FlexibilityNo cancel feeOn-time67%
DeltaCheapest$577Average$933FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$580Average$935FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$580Average$904FlexibilityNo cancel feeOn-time70%
IberiaCheapest$597Average$944FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$602Average$1,102FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$615Average$875FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$634Average$1,009FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$670Average$888FlexibilityNo cancel feeOn-time76%

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