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Cheap flights from London Heathrow Airport to Missouri from £397

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — STL
11 Jun — 18 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Missouri

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Missouri
Explore the most affordable flight options available from Heathrow to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 May 2026.

Wed 2/911:45
LHR
-
STL
2 stops17h 52m
KLM
Wed 23/919:05
STL
-
LHR
1 stop12h 10m
KLM
Deal found 8/5£630
Wed 2/908:40
LHR
-
STL
2 stops16h 02m
Multiple Airlines
Wed 23/920:07
STL
-
LHR
1 stop10h 08m
Multiple Airlines
Deal found 10/5£638
Wed 2/906:30
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Wed 9/913:30
STL
-
LHR
2 stops15h 10m
Multiple Airlines
Deal found 8/5£641
Tue 22/916:25
LHR
-
STL
Nonstop9h 05m
British Airways
Tue 6/1021:35
STL
-
LHR
Nonstop8h 00m
British Airways
Deal found 7/5£642
Wed 2/907:30
LHR
-
STL
2 stops22h 29m
Finnair
Wed 30/912:43
STL
-
LHR
1 stop19h 42m
Finnair
Deal found 9/5£643
Wed 23/906:30
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Tue 29/920:07
STL
-
LHR
1 stop10h 08m
Multiple Airlines
Deal found 9/5£645
Tue 8/912:15
LHR
-
STL
1 stop13h 10m
British Airways
Tue 22/921:35
STL
-
LHR
Nonstop8h 00m
British Airways
Deal found 7/5£646
Wed 2/909:55
LHR
-
STL
2 stops16h 36m
Virgin Atlantic
Wed 23/915:42
STL
-
LHR
2 stops13h 38m
Virgin Atlantic
Deal found 8/5£651
Sat 6/606:40
LHR
-
MCI
2 stops22h 28m
Scandinavian Airlines
Sat 13/610:30
MCI
-
LHR
2 stops26h 20m
Scandinavian Airlines
Deal found 9/5£700
Thu 21/506:40
LHR
-
MCI
2 stops21h 43m
Scandinavian Airlines
Tue 2/607:05
MCI
-
LHR
2 stops32h 35m
Scandinavian Airlines
Deal found 9/5£701
Fri 5/606:40
LHR
-
MCI
2 stops22h 28m
Scandinavian Airlines
Mon 8/615:38
MCI
-
LHR
2 stops18h 22m
Scandinavian Airlines
Deal found 10/5£711
Thu 4/618:40
LHR
-
MCI
2 stops34h 28m
Scandinavian Airlines
Thu 11/615:38
MCI
-
LHR
2 stops20h 02m
Scandinavian Airlines
Deal found 7/5£713

Find flight deals from Heathrow to Missouri

Keep the following information in mind while searching for Heathrow to Missouri flight deals. Data was last updated 12 May 2026.

Round-trip from

£630

One-way from

£397

Popular in

July

Cheapest in

February

Average price

£670

Good round-trip deal

£798 or less
KLM
  • KLM
  • 2/9-23/9
  • 3 total stops
  • 30h 02m total
  • London to Missouri
Search Deals
Lufthansa
  • Lufthansa
  • 21/9
  • 1 total stop
  • 12h 55m total
  • London to Missouri
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Missouri.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Missouri 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 858,174 searches. Data last updated 12 May 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Tue 9/6

08:40-20:39

2 stops17h 59m

Lambert-St Louis

Tue 15/9

13:30-10:20

2 stops14h 50m

£713
Fastest return journey

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Mon 8/6

09:15-17:19

1 stop14h 04m

Lambert-St Louis

Mon 22/6

18:13-12:10

1 stop11h 57m

£768

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Wed 17/6

06:30-15:17

2 stops14h 47m

Lambert-St Louis

Tue 23/6

13:59-13:05

2 stops17h 06m

£771

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Mon 15/6

09:55-20:39

2 stops16h 44m

Lambert-St Louis

Mon 29/6

06:30-07:10

1 stop18h 40m

£773

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Mon 8/6

06:30-17:23

2 stops16h 53m

Lambert-St Louis

Mon 15/6

13:59-10:30

2 stops14h 31m

£782

LondonSpringfield

LHR - SGF

LHRSGF

London Heathrow

Mon 14/9

12:55-23:58

1 stop17h 03m

Springfield-Branson

Wed 23/9

14:24-10:55

1 stop14h 31m

£801

LondonSpringfield

LHR - SGF

LHRSGF

London Heathrow

Mon 14/9

11:15-22:29

1 stop17h 14m

Springfield-Branson

Wed 23/9

06:00-06:45

2 stops18h 45m

£818

LondonKansas City

LHR - MCI

LHRMCI

London Heathrow

Wed 17/6

06:30-15:24

2 stops14h 54m

Kansas City

Tue 30/6

12:25-07:15

1 stop12h 50m

£833

LondonKansas City

LHR - MCI

LHRMCI

London Heathrow

Wed 8/7

06:30-15:14

2 stops14h 44m

Kansas City

Wed 22/7

07:00-07:15

1 stop18h 15m

£834

LondonKansas City

LHR - MCI

LHRMCI

London Heathrow

Thu 10/9

08:55-18:44

1 stop15h 49m

Kansas City

Wed 2/12

13:44-08:15

1 stop12h 31m

£838

Flights are sorted by cheapest return flights first.

Deals found on 8/5

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri from Heathrow with our price prediction graph.
Estimated return 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 London Heathrow Airport to Missouri

How far ahead should I book a flight from London Heathrow Airport to Missouri?

The price you pay for your flight from London Heathrow Airport to Missouri may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Missouri (average of £125). Flying from London Heathrow Airport to Missouri in March is currently the most expensive (average of £510). 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 LHR to MO?

Find hourly flight availability from Heathrow to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 May 2026.

When flying from London Heathrow Airport to Missouri, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from London Heathrow Airport to Missouri?

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated 12 May 2026.
See what other customers who have flown with Finnair,United Airlines, andVirgin Atlantic from London Heathrow Airport to Missouri have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,393 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.6
Good
1,393 reviews
Finnair
7.6
Good
1,393 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
United Airlines
7.4
Good
9,702 reviews
Finnair
7.6
Good
1,393 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Virgin Atlantic
7.4
Good
688 reviews
Finnair
7.6
Good
1,393 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Lufthansa
6.8
Okay
7,993 reviews
Finnair
7.6
Good
1,393 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
7,974 reviews
Finnair
7.6
Good
1,393 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Missouri. 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 London Heathrow Airport to Missouri?

    There are many flights that can get you from London Heathrow Airport to Missouri in 14h 04m. Fly via Delta, British Airways, or Finnair to get the fastest option. There are 4186 mi between London Heathrow Airport and Missouri. Both multi-stop and direct flights can be found to your destination and back.

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

    £338 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on United Airlines and Finnair, with prices starting from £353 and £356, respectively.

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

    Most travelers choose London Heathrow - Lambert-St Louis, London Heathrow - Kansas City or London Heathrow - Springfield-Branson when deciding on the best route from London Heathrow Airport to Missouri.

  • What are the most reliable airlines from London Heathrow Airport to Missouri?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Missouri on time: American Airlines (100%), Aer Lingus (100%), Finnair (100%).

  • What are the cheapest flights from London Heathrow Airport to Missouri?

    Looking at all options, your cheapest flight can be booked for £699. While the most popular route (London Heathrow - Lambert-St Louis) can be booked for £624 on average, our data indicates £965 when flying from London Heathrow Airport to Missouri.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Missouri (average of £125). Flying from London Heathrow Airport to Missouri in March is currently the most expensive (average of £510). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Heathrow to Missouri

Discover the top 10 airlines that operate flights from Heathrow to Missouri. 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 858,174 searches. Data last updated 12 May 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest£171Average£879FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£363Average£717FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£466Average£769FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£471Average£785FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£512Average£799FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£547Average£872FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
DeltaCheapest£553Average£962FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FinnairCheapest£577Average£756FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Scandinavian AirlinesCheapest£587Average£693FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air CanadaCheapest£594Average£703FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Missouri?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Missouri. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Missouri?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Missouri from Heathrow.

Can Cheapflights find flights from Heathrow to Missouri with no change fees?

Certainly. Search results for flights to Missouri from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to Missouri become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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