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Cheap flights from Missouri to London Heathrow Airport from £231

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 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LHR
13 Sep — 20 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Missouri to Heathrow

Enter your travel dates to find the best prices.

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 14 August 2026.

Mon 16/1115:19 -
1 stop10h 36m
Wed 18/1106:50 -
2 stops17h 58m
Deal found 11/8£552
Sun 15/1118:40 -
1 stop31h 15m
Wed 18/1106:50 -
2 stops21h 06m
Deal found 13/8£556
Sun 6/1206:00 -
2 stops19h 10m
Tue 8/1206:35 -
2 stops20h 17m
Deal found 13/8£557
Wed 11/1115:40 -
1 stop17h 05m
Fri 13/1107:40 -
2 stops21h 44m
Deal found 12/8£561
Tue 10/1118:50 -
2 stops33h 55m
Fri 13/1108:45 -
2 stops20h 39m
Deal found 12/8£565
Sun 15/1113:33 -
2 stops39h 47m
Wed 18/1111:10 -
2 stops18h 34m
Deal found 14/8£586
Tue 10/1115:19 -
2 stops15h 41m
Wed 18/1109:00 -
2 stops18h 51m
Deal found 12/8£607
Tue 10/1111:32 -
1 stop15h 03m
Wed 18/1107:35 -
2 stops16h 42m
Deal found 12/8£619
Thu 19/1109:40 -
2 stops15h 30m
Sat 21/1106:50 -
2 stops14h 53m
Deal found 13/8£621
Tue 10/1118:50 -
2 stops16h 15m
Thu 12/1115:30 -
1 stop28h 15m
Deal found 12/8£623
Tue 10/1116:05 -
1 stop10h 25m
Wed 18/1106:30 -
1 stop13h 15m
Deal found 12/8£626
Tue 17/1111:42 -
1 stop14h 53m
Tue 24/1107:30 -
2 stops17h 17m
Deal found 13/8£626

Find flight deals from Missouri to Heathrow

Keep the following information in mind while searching for Missouri to Heathrow flight deals. Data was last updated 14 August 2026.

Round-trip from

£552

One-way from

£231

Popular in

June

Cheapest in

October

Average price

£680
United Airlines
  • United Airlines
  • 16/11-18/11
  • 3 total stops
  • 28h 34m total
  • Missouri to London
Search Deals
16/11
  • 16/11
  • 3 total stops
  • 34h 42m total
  • Missouri to London
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£175 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 14 August 2026.
Use the filters below to find and compare flights from Missouri to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SpringfieldLondon

SGF Springfield-Branson - LHR London Heathrow

SGFLHR

Springfield-Branson

Sun 15/11

18:40-07:55

1 stop31h 15m

London Heathrow

Wed 18/11

06:50-21:56

2 stops21h 06m

£556

JoplinLondon

JLN Joplin - LHR London Heathrow

JLNLHR

Joplin

Sun 15/11

13:33-11:20

2 stops39h 47m

London Heathrow

Wed 18/11

11:10-23:44

2 stops18h 34m

£586

St. LouisLondon

STL Lambert-St Louis - LHR London Heathrow

STLLHR

Lambert-St Louis

Wed 18/11

09:40-07:10

2 stops15h 30m

London Heathrow

Wed 25/11

09:00-19:23

2 stops16h 23m

£644

St. LouisLondon

STL Lambert-St Louis - LHR London Heathrow

STLLHR

Lambert-St Louis

Wed 13/1

11:51-08:05

2 stops14h 14m

London Heathrow

Tue 19/1

10:00-20:37

2 stops16h 37m

£651

Kansas CityLondon

MCI Kansas City - LHR London Heathrow

MCILHR

Kansas City

Tue 29/9

12:20-06:25

1 stop12h 05m

London Heathrow

Wed 21/10

09:55-20:18

2 stops16h 23m

£655

Kansas CityLondon

MCI Kansas City - LHR London Heathrow

MCILHR

Kansas City

Wed 23/9

12:22-13:05

1 stop18h 43m

London Heathrow

Tue 29/9

09:55-20:43

2 stops16h 48m

£655

SpringfieldLondon

SGF Springfield-Branson - LHR London Heathrow

SGFLHR

Springfield-Branson

Wed 28/10

14:55-12:00

2 stops16h 05m

London Heathrow

Wed 4/11

06:35-17:58

2 stops17h 23m

£659

St. LouisLondon

STL Lambert-St Louis - LHR London Heathrow

STLLHR

Lambert-St Louis

Fri 20/11

18:50-06:30

2 stops53h 40m

London Heathrow

Fri 27/11

09:00-15:26

2 stops36h 26m

£671

JoplinLondon

JLN Joplin - LHR London Heathrow

JLNLHR

Joplin

Sun 15/11

13:33-09:40

1 stop14h 07m

London Heathrow

Thu 19/11

06:35-23:44

2 stops23h 09m

£671

Kansas CityLondon

MCI Kansas City - LHR London Heathrow

MCILHR

Kansas City

Sat 10/10

14:10-07:10

1 stop11h 00m

London Heathrow

Thu 22/10

06:30-14:42

2 stops14h 12m

£692

Flights are sorted by cheapest return flights first.

Deals found on 11/8

Showing 1-10 of 56 resultsSorted by cheapest first
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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 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 Missouri to London Heathrow Airport

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

Currently, October is the cheapest month in which you can book a flight from Missouri to London Heathrow Airport (average of £509). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of £1,080). 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 14 August 2026.

When flying from Missouri to London Heathrow Airport, 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 Missouri to London Heathrow Airport?

Airfare is below average for this route at the moment.
Missouri to London Heathrow Airport flights typically cost between £700 and £929 in February.
The cheapest return price found within the last 5 days was £555 on United Airlines (7 Feb–9 Feb).

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

The price you pay for your flight from Missouri to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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.

  • How long is the flight from Missouri to London Heathrow Airport?

    Departing from Missouri to London Heathrow Airport will take you 12h 05m. The distance from Missouri to London Heathrow Airport is about 4325 mi. This flight may include one or multiple stops.

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

    The most popular route from Missouri to London Heathrow Airport is Lambert-St Louis - London Heathrow. You may also consider Kansas City - London Heathrow or Springfield-Branson - London Heathrow.

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

    The top 3 most reliable airlines when flying from Missouri to London Heathrow Airport are American Airlines (66%), Aer Lingus (66%) and Finnair (66%).

  • 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 holiday 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, October is the cheapest month in which you can book a flight from Missouri to London Heathrow Airport (average of £509). Flying from Missouri to London Heathrow Airport in June is currently the most expensive (average of £1,080). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Southend-on-Sea
Swindon
Enfield
Kingston upon Thames
Southall
Poole

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.
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Dulles Intl to London City flights
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Boston to London City flights
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Philadelphia to Heathrow flights
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Boston to Stansted flights
Los Angeles to Stansted flights
Baltimore to Gatwick flights
Los Angeles to London City flights
Reagan-National to Gatwick flights
George Bush Intcntl to Heathrow flights
Raleigh to Heathrow flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
Sky Harbor Intl to Heathrow flights
Detroit to Heathrow flights
O'Hare Intl to Stansted flights
San Francisco to London City flights
O'Hare Intl to London City flights
Charlotte to Heathrow flights
San Francisco to Stansted flights
Minneapolis to Heathrow flights

Top 2 airlines flying from Missouri to Heathrow

Discover the top 2 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 858,174 searches. Data last updated 14 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£428Average£561FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£430Average£568FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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 Missouri to Heathrow?

Cheapflights helps you search for flights from Missouri to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

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 Heathrow from Missouri.

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

Certainly. Search results for flights to Heathrow from Missouri 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 Missouri to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Missouri to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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