Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from the United Kingdom to St. Louis from £270

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
2 Aug — 9 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to St. Louis
Explore the most affordable flight options available from United Kingdom to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2026.

Fri 4/909:35
MAN
-
STL
2 stops20h 23m
Scandinavian Airlines
Sat 12/915:54
STL
-
MAN
2 stops35h 01m
Scandinavian Airlines
Deal found 2/7£633
Thu 3/919:10
MAN
-
STL
2 stops34h 48m
Scandinavian Airlines
Sat 12/915:54
STL
-
MAN
2 stops20h 56m
Scandinavian Airlines
Deal found 2/7£663
Thu 13/807:50
EDI
-
STL
2 stops18h 34m
Multiple Airlines
Thu 20/814:40
STL
-
EDI
2 stops21h 20m
Multiple Airlines
Deal found 29/6£665
Fri 4/913:25
BHX
-
STL
2 stops16h 33m
KLM
Sun 13/915:54
STL
-
BHX
2 stops34h 41m
KLM
Deal found 2/7£665
Wed 16/920:15
LCY
-
STL
2 stops30h 20m
Virgin Atlantic
Wed 23/918:45
STL
-
LCY
2 stops15h 55m
Virgin Atlantic
Deal found 1/7£677
Tue 10/1115:50
LHR
-
STL
1 stop13h 49m
Delta
Sun 15/1119:55
STL
-
LHR
1 stop32h 05m
Delta
Deal found 3/7£678
Wed 19/819:50
LHR
-
STL
3 stops30h 34m
Multiple Airlines
Mon 24/814:40
STL
-
LHR
3 stops22h 10m
Multiple Airlines
Deal found 29/6£679
Sun 8/1118:55
LCY
-
STL
2 stops32h 00m
British Airways
Sun 15/1117:27
STL
-
LCY
2 stops39h 08m
British Airways
Deal found 30/6£679
Fri 2/1008:40
LHR
-
STL
2 stops16h 01m
Air Canada
Sun 11/1012:10
STL
-
LHR
2 stops14h 25m
Air Canada
Deal found 2/7£680
Wed 30/920:15
LCY
-
STL
2 stops26h 55m
Virgin Atlantic
Wed 7/1019:20
STL
-
LCY
2 stops15h 20m
Virgin Atlantic
Deal found 3/7£680
Sun 29/1119:40
LHR
-
STL
2 stops34h 18m
Iberia
Mon 7/1214:54
STL
-
LHR
1 stop10h 06m
Iberia
Deal found 30/6£682
Sat 5/919:45
LHR
-
STL
2 stops30h 57m
Virgin Atlantic
Sat 12/917:46
STL
-
LHR
2 stops30h 34m
Virgin Atlantic
Deal found 2/7£683

Find flight deals from United Kingdom to St. Louis

Keep the following information in mind while searching for United Kingdom to St. Louis flight deals. Data was last updated 3 July 2026.

Round-trip from

£633

One-way from

£270

Popular in

July

Cheapest in

February

Average price

£923

Good round-trip deal

£684 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 4/9-14/9
  • 4 total stops
  • 56h 48m total
  • United Kingdom to St. Louis
Search Deals
21/9
  • 21/9
  • 2 total stops
  • 49h 40m total
  • United Kingdom to St. Louis
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£97 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from United Kingdom to Lambert-St Louis.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to St. Louis 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 3 July 2026.
Use the filters below to find and compare flights from the United Kingdom to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ManchesterSt. Louis

MAN - STL

MANSTL

Manchester

Fri 4/9

09:35-23:58

2 stops20h 23m

Lambert-St Louis

Sat 12/9

13:40-18:50

2 stops23h 10m

£663

EdinburghSt. Louis

EDI - STL

EDISTL

Edinburgh Turnhouse

Thu 13/8

07:50-20:24

2 stops18h 34m

Lambert-St Louis

Thu 20/8

14:40-18:00

2 stops21h 20m

£665

LondonSt. Louis

LCY - STL

LCYSTL

London City

Mon 9/11

08:40-20:55

2 stops18h 15m

Lambert-St Louis

Sun 15/11

17:27-14:35

2 stops39h 08m

£679

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Mon 28/9

11:05-17:01

1 stop11h 56m

Lambert-St Louis

Sat 10/10

19:01-11:55

1 stop10h 54m

£693

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 9/11

10:00-23:39

2 stops19h 39m

Lambert-St Louis

Sat 14/11

11:51-09:00

2 stops15h 09m

£694

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 27/11

10:00-17:06

2 stops37h 06m

Lambert-St Louis

Mon 7/12

16:13-15:45

2 stops17h 32m

£694

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 27/11

10:00-17:06

2 stops37h 06m

Lambert-St Louis

Thu 3/12

16:13-15:45

2 stops17h 32m

£694

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Wed 7/10

11:05-17:01

1 stop11h 56m

Lambert-St Louis

Sat 17/10

19:01-11:55

1 stop10h 54m

£697

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 21/8

14:00-16:11

1 stop32h 11m

Lambert-St Louis

Sun 6/9

17:02-10:00

1 stop34h 58m

£697

ManchesterSt. Louis

MAN - STL

MANSTL

Manchester

Fri 4/9

19:10-23:31

2 stops34h 21m

Lambert-St Louis

Fri 11/9

13:40-08:55

2 stops37h 15m

£704

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from United Kingdom to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from United Kingdom 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 the United Kingdom to St. Louis

What is the cheapest month to book a flight from United Kingdom to St. Louis?

Currently, August is the cheapest month in which you can book a flight from United Kingdom to St. Louis (average of £68). Flying from United Kingdom to St. Louis in June is currently the most expensive (average of £579). 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 GB to STL?

Find hourly flight availability from United Kingdom to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 July 2026.

When flying from United Kingdom to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How often are flights from the United Kingdom to St. Louis delayed?

About 5% of weekly flights between United Kingdom and St. Louis have experienced delays in the past year, with the average delay time being 79 minutes.

What is the most punctual flight time for the United Kingdom to St. Louis flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to St. Louis flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 5% of flights being delayed.

How far ahead should I book a flight from United Kingdom to St. Louis?

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated 3 July 2026.
See what other customers who have flown with Virgin Atlantic,United Airlines, andAir Canada from the United Kingdom to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.5

Entertainment

7.5

Food

6.9

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
690 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.5

Entertainment

7.5

Food

6.9

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
9,929 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.5

Entertainment

7.5

Food

6.9

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Air Canada
7.1
Good
11,291 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.5

Entertainment

7.5

Food

6.9

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Lufthansa
6.8
Okay
8,108 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.5

Entertainment

7.5

Food

6.9

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,093 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.5

Entertainment

7.5

Food

6.9

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

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

  • What airport do you fly into for flights to St. Louis from United Kingdom?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from United Kingdom to St. Louis. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

  • How long is the flight from United Kingdom to St. Louis?

    There are many flights that can get you from United Kingdom to St. Louis in 11h 56m. Fly via Scandinavian Airlines, British Airways, or United Airlines to get the fastest option. The distance from United Kingdom to St. Louis is about 4186 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from United Kingdom to St. Louis one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as £341. However, be on the lookout for offers from British Airways and Lufthansa, as they are both options that can get you from United Kingdom to St. Louis for a low price.

  • What are the most popular routes from United Kingdom to St. Louis?

    When deciding which route to take from United Kingdom to St. Louis consider London Heathrow - Lambert-St Louis, London Gatwick - Lambert-St Louis or London Stansted - Lambert-St Louis as they are the most popular.

  • What are the most reliable airlines from United Kingdom to St. Louis?

    Consider American Airlines (82%), Aer Lingus (82%) or Finnair (82%) when booking your flight. These represent the most reliable airlines when flying from United Kingdom to St. Louis.

  • What are the cheapest flights from United Kingdom to St. Louis?

    On average you can expect to pay £911 for a flight from United Kingdom to St. Louis. The cheapest flight overall is £626 while the most popular route, (London Heathrow - Lambert-St Louis) is currently priced at £564.

  • Can I find deals for flights from United Kingdom to St. Louis that include hotel bookings?

    Yes. In addition to deals on United Kingdom to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to St. Louis.

  • Can I find deals for business class flights from United Kingdom to St. Louis?

    Yes. Cheapflights offers flight deals from United Kingdom to St. Louis 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 United Kingdom to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from United Kingdom to St. Louis (average of £68). Flying from United Kingdom to St. Louis in June is currently the most expensive (average of £579). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from United Kingdom to St. Louis

Discover the top 10 airlines that operate flights from United Kingdom to St. Louis. 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 3 July 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest£175Average£723FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£370Average£862FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£476Average£806FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£484Average£761FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£506Average£755FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£559Average£819FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£564Average£712FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air CanadaCheapest£576Average£710FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapest£611Average£869FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
LufthansaCheapest£645Average£913FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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 United Kingdom to St. Louis?

Cheapflights makes it easy to find United Kingdom to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to St. Louis?

Cheapflights helps you find that perfect flight to St. Louis from United Kingdom by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from United Kingdom to St. Louis with no change fees?

Need flexible booking options for your flight to St. Louis from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to St. Louis become cheaper?

Yes! Start tracking prices for United Kingdom to St. Louis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.