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Heathrow

$296+ Cheap flights from Missouri to Heathrow (LHR)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LHR
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Missouri to Heathrow

Keep the following information in mind while searching for Missouri to Heathrow flight deals. Data was last updated July 31, 2025.

Round-trip from

$555
(Booking.com)

One-way from

$296
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$1,042
From Missouri to London Heathrow
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One-way flight from Missouri to London Heathrow
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Highest demand for flights based on searches. 17% potential increase in price ($198 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Missouri to Heathrow

Cheapest flights from Missouri to Heathrow
Explore the most affordable flight options available from Missouri to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/201:30 pmSTL - LHR
1 stop14h 30mAir Canada
Sat 8/306:50 amLHR - STL
2 stops19h 10mAir Canada
Deal found 7/30$555
This Cheapflightsfares deal was found by Cheapflights users on 7/31. 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.
Fri 10/178:05 pmSTL - LHR
1 stop10h 10mBritish Airways
Tue 10/211:10 pmLHR - STL
1 stop13h 16mBritish Airways
Deal found 7/31$556
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.
Fri 10/1711:10 amSTL - LHR
1 stop13h 10mUnited Airlines
Tue 10/212:05 pmLHR - STL
2 stops30h 22mUnited Airlines
Deal found 7/29$557
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1712:25 pmSTL - LHR
2 stops15h 10mMultiple Airlines
Tue 10/216:50 amLHR - STL
2 stops14h 28mMultiple Airlines
Deal found 7/30$560
This Delta deal was found by Cheapflights users on 7/31. 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 8/133:40 pmSTL - LHR
1 stop13h 30mDelta
Sun 8/1711:30 amLHR - STL
2 stops17h 52mDelta
Deal found 7/31$572
This Cheapflightsfares deal was found by Cheapflights users on 7/31. 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 8/135:52 pmSTL - LHR
1 stop12h 53mIberia
Sun 8/173:10 pmLHR - STL
1 stop13h 53mIberia
Deal found 7/31$573
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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.
Mon 8/185:30 pmSTL - LHR
2 stops17h 10mLufthansa
Wed 8/276:30 amLHR - STL
2 stops15h 14mLufthansa
Deal found 7/30$598
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 8/139:23 amSGF - LHR
1 stop18h 17mUnited Airlines
Wed 10/112:40 pmLHR - SGF
2 stops31h 56mUnited Airlines
Deal found 7/30$627
This KLM deal was found by Cheapflights users on 7/31. 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.
Tue 11/1111:45 amSGF - LHR
1 stop17h 55mKLM
Wed 11/2612:30 pmLHR - SGF
1 stop16h 02mKLM
Deal found 7/31$649
This Virgin Atlantic deal was found by Cheapflights users on 7/30. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/133:54 pmSGF - LHR
2 stops13h 31mVirgin Atlantic
Wed 10/112:25 pmLHR - SGF
2 stops15h 37mVirgin Atlantic
Deal found 7/30$654
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.
Fri 9/126:00 amMCI - LHR
1 stop24h 20mUnited Airlines
Fri 9/192:05 pmLHR - MCI
3 stops30h 15mUnited Airlines
Deal found 7/28$675
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/34:06 pmMCI - LHR
2 stops13h 19mDelta
Wed 10/86:15 amLHR - MCI
2 stops16h 51mDelta
Deal found 7/29$676

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Heathrow 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 31, 2025.
Use the filters below to find and compare flights from Missouri to London Heathrow Airport that are best for you.

Fly from

Missouri

Fly to

Heathrow

Route

Depart

Return

Price

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 8/20

1:30 pm-10:00 am

1 stop14h 30m

London Heathrow

Sat 8/30

6:50 am-8:00 pm

2 stops19h 10m

$555

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Fri 10/17

8:05 pm-12:15 pm

1 stop10h 10m

London Heathrow

Tue 10/21

1:10 pm-8:26 pm

1 stop13h 16m

$556

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Fri 10/17

11:10 am-6:20 am

1 stop13h 10m

London Heathrow

Tue 10/21

2:05 pm-2:27 pm

2 stops30h 22m

$557

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Fri 10/17

12:25 pm-9:35 am

2 stops15h 10m

London Heathrow

Tue 10/21

6:50 am-3:18 pm

2 stops14h 28m

$560

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 8/13

3:40 pm-11:10 am

1 stop13h 30m

London Heathrow

Sun 8/17

11:30 am-11:22 pm

2 stops17h 52m

$572

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 8/13

5:52 pm-12:45 pm

1 stop12h 53m

London Heathrow

Sun 8/17

3:10 pm-11:03 pm

1 stop13h 53m

$573

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 8/18

5:30 pm-4:40 pm

2 stops17h 10m

London Heathrow

Wed 8/27

6:30 am-3:44 pm

2 stops15h 14m

$598

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Wed 8/13

5:45 am-6:30 am

2 stops18h 45m

London Heathrow

Wed 10/1

12:40 pm-2:36 pm

2 stops31h 56m

$627

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Tue 11/11

11:45 am-11:40 am

1 stop17h 55m

London Heathrow

Wed 11/26

12:30 pm-10:32 pm

1 stop16h 02m

$649

SpringfieldLondon

SGF - LHR

SGFLHR

Springfield-Branson

Wed 8/13

3:54 pm-11:25 am

2 stops13h 31m

London Heathrow

Wed 10/1

12:25 pm-10:02 pm

2 stops15h 37m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 48 results
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Best time to book a flight from Missouri to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow Airport

What is the cheapest month to book a flight from Missouri to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Missouri to London Heathrow Airport (average of $661). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 LHR?

Find hourly flight availability from Missouri to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to London Heathrow Airport as you normally would.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Missouri to London Heathrow Airport, such as Delta, KLM, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,902 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.4
Good
1,457 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Missouri to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    One-way options have recently been found by users for as low as $373 on Air Canada. Other airlines that offer cheap prices include United Airlines from $394 and Virgin Atlantic from $419 one-way.

  • What are the most popular routes from Missouri to London Heathrow Airport?

    When deciding which route to take from Missouri to London Heathrow Airport consider Lambert-St Louis - London Heathrow, Kansas City - London Heathrow or Springfield-Branson - London Heathrow as they are the most popular.

  • Can I find deals for flights from Missouri to Heathrow that include hotel bookings?

    Yes. In addition to deals on Missouri to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Heathrow.

  • Can I find deals for business class flights from Missouri to Heathrow?

    Yes. Cheapflights offers flight deals from Missouri to Heathrow 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 Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Missouri to London Heathrow Airport (average of $661). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Dartford
Broadway
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Swindon

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to London City flights
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John F Kennedy Intl to Stansted flights
LaGuardia to Gatwick flights
Boston to Heathrow flights
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John F Kennedy Intl to Luton flights
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San Francisco to Heathrow flights
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Baltimore to Heathrow flights
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Dallas/Fort Worth to Heathrow flights
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Boston to Gatwick flights
Philadelphia to Heathrow flights
Atlanta to Heathrow flights
Orlando to Heathrow flights
Hobby to Heathrow flights
Reagan-National to Heathrow flights
Denver to Heathrow flights
O'Hare Intl to Gatwick flights
Boston to London City flights
Dulles Intl to Gatwick flights
O'Hare Intl to London City flights
Dulles Intl to London City flights
Seattle to Gatwick flights
Los Angeles to London City flights
Baltimore to Gatwick flights
San Francisco to Gatwick flights
LaGuardia to Stansted flights
Reagan-National to Gatwick flights
George Bush Intcntl to Heathrow flights
San Francisco to London City flights
Dallas/Fort Worth to Gatwick flights
Los Angeles to Gatwick flights
Orlando to Gatwick flights
Seattle to London City flights
Minneapolis to Heathrow flights
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Midway to Heathrow flights
Charlotte to Heathrow flights
Detroit to Heathrow flights

Top 10 airlines flying from Missouri to Heathrow

Discover the top 10 airlines that operate flights from Missouri to Heathrow. 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$529Average$795FlexibilityNo cancel feeOn-time75%
FinnairCheapest$599Average$813FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$620Average$873FlexibilityNo cancel feeOn-time72%
DeltaCheapest$642Average$964FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$658Average$988FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$662Average$910FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$664Average$949FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$669Average$1,102FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$678Average$952FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$686Average$1,076FlexibilityNo cancel feeOn-time71%

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