St. Louis

$304+ Cheap flights from the United Kingdom to St. Louis (STL)

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — STL
ene. 11 — ene. 181
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Cheap flight deals from United Kingdom to St. Louis

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 diciembre 12, 2025.

This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/258:20 amLHR - STL
1 stop17h 02mAmerican Airlines
dom. 1/183:37 pmSTL - LHR
1 stop12h 23mAmerican Airlines
Deal found 12/11$932
This Delta deal was found by Cheapflights users on 12/10. 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.
jue. 12/256:30 amLHR - STL
2 stops20h 11mDelta
dom. 1/1812:00 pmSTL - LHR
2 stops12h 55mDelta
Deal found 12/10$944
This Delta deal was found by Cheapflights users on 12/10. 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.
sáb. 12/279:05 amMAN - STL
2 stops29h 53mDelta
sáb. 1/175:00 pmSTL - MAN
2 stops19h 40mDelta
Deal found 12/10$1,064
This The Travel House deal was found by Cheapflights users on 12/10. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/129:50 amMAN - STL
2 stops20h 09mAer Lingus
mar. 1/1311:05 amSTL - MAN
2 stops20h 20mAer Lingus
Deal found 12/10$1,111
This British Airways deal was found by Cheapflights users on 12/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/278:05 amMAN - STL
2 stops17h 26mBritish Airways
sáb. 1/1712:06 pmSTL - MAN
2 stops14h 44mBritish Airways
Deal found 12/10$1,267
This Virgin Atlantic deal was found by Cheapflights users on 12/10. 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.
sáb. 12/271:30 pmMAN - STL
1 stop14h 13mVirgin Atlantic
sáb. 1/179:59 amSTL - MAN
1 stop18h 31mVirgin Atlantic
Deal found 12/10$1,286
This lastminute.com deal was found by Cheapflights users on 12/11. 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.
mié. 12/242:50 pmLHR - STL
2 stops30h 13mMultiple Airlines
dom. 12/286:35 pmSTL - LHR
1 stop10h 40mMultiple Airlines
Deal found 12/11$1,307
This The Travel House deal was found by Cheapflights users on 12/11. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/1612:25 pmMAN - STL
2 stops34h 25mAer Lingus
mar. 12/235:54 amSTL - MAN
2 stops25h 31mAer Lingus
Deal found 12/11$1,374
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
lun. 12/222:00 pmLGW - STL
2 stops25h 40mMultiple Airlines
dom. 12/284:27 pmSTL - LGW
1 stop35h 33mMultiple Airlines
Deal found 12/11$1,376
This ChecknFly deal was found by Cheapflights users on 12/11. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/244:30 pmLHR - STL
1 stop36h 26mIberia
dom. 12/2811:41 amSTL - LHR
1 stop16h 19mIberia
Deal found 12/11$1,385
This British Airways deal was found by Cheapflights users on 12/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/237:05 pmLHR - STL
2 stops49h 04mBritish Airways
lun. 12/296:41 amSTL - LHR
1 stop19h 34mBritish Airways
Deal found 12/10$1,393
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/107:10 pmLHR - STL
1 stop22h 04mAmerican Airlines
mar. 1/62:54 pmSTL - LHR
1 stop10h 06mAmerican Airlines
Deal found 12/10$1,402

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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$531
(Trip.com)

One-way from

$304
(Trip.com)

Popular in

December

Cheapest in

March

Average price

$1,367

Good one-way deal

$604 or less
Provider with most accurate pricing for London (LON)-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for London (LON)-Lambert-St Louis flights.
From United Kingdom to Lambert-St Louis
One-way flight from United Kingdom to Lambert-St Louis
Highest demand for flights based on searches. 4% potential increase in price ($44 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Average for round-trip flights in December 2025
Price to beat on a one-way flight from United Kingdom to Lambert-St Louis.

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated diciembre 12, 2025.
Use the filters below to find and compare flights from the United Kingdom to St. Louis that are best for you.

Fly from

United Kingdom

Fly to

St. Louis

Route

Depart

Return

Price

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

vie. 1/23

2:00 pm-11:33 pm

1 stop15h 33m

Lambert-St Louis

vie. 1/30

11:18 am-10:00 am

1 stop16h 42m

$531

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

jue. 1/22

2:00 pm-10:23 am

1 stop26h 23m

Lambert-St Louis

lun. 1/26

10:16 am-10:00 am

1 stop17h 44m

$532

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

jue. 1/22

2:00 pm-11:33 pm

1 stop15h 33m

Lambert-St Louis

mié. 1/28

8:22 pm-10:00 am

2 stops31h 38m

$559

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

sáb. 1/24

2:00 pm-11:33 pm

1 stop15h 33m

Lambert-St Louis

sáb. 1/31

8:22 pm-6:00 am

2 stops27h 38m

$584

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

dom. 1/25

7:20 pm-5:50 pm

2 stops28h 30m

Lambert-St Louis

dom. 2/1

6:57 pm-8:10 pm

2 stops19h 13m

$741

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

mar. 1/13

8:20 am-4:14 pm

1 stop13h 54m

Lambert-St Louis

vie. 1/23

5:04 pm-11:40 am

1 stop12h 36m

$744

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

mar. 1/13

5:00 pm-2:23 pm

2 stops27h 23m

Lambert-St Louis

vie. 1/23

1:35 pm-8:15 am

1 stop12h 40m

$756

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

jue. 1/22

8:15 am-10:44 pm

2 stops20h 29m

Lambert-St Louis

lun. 1/26

2:54 pm-7:00 am

1 stop10h 06m

$758

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

vie. 2/6

6:40 am-11:37 pm

2 stops22h 57m

Lambert-St Louis

sáb. 2/14

10:11 am-9:40 pm

2 stops29h 29m

$786

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

sáb. 1/24

5:35 pm-4:58 pm

2 stops29h 23m

Lambert-St Louis

sáb. 1/31

5:04 pm-8:10 pm

2 stops45h 06m

$786

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
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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 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 the United Kingdom to St. Louis

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

Currently, September is the cheapest month in which you can book a flight from United Kingdom to St. Louis (average of $539). Flying from United Kingdom to St. Louis in July is currently the most expensive (average of $814). 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 diciembre 12, 2025.

It’s typically best to fly out from United Kingdom to St. Louis in the evening. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.

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 diciembre 12, 2025.
Get a feel of what it's like to fly with British Airways from the United Kingdom to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

Overall

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

Comfort

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

Overall

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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?

    If you book a flight to St. Louis from United Kingdom, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

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

    For as low as $744, Virgin Atlantic can have you in St. Louis from United Kingdom in 13h 54m. United Kingdom and St. Louis are separated by a distance of 4186 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as $526. Users have also found prices from $599 and $634 on WestJet and Aer Lingus, respectively.

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

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

    Looking for the cheapest flight from United Kingdom to St. Louis? While on average our users pay $640, our data indicates the cheapest price to be $480. The most popular route (London Heathrow - Lambert-St Louis), is priced around $714.

  • 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 vacation 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, September is the cheapest month in which you can book a flight from United Kingdom to St. Louis (average of $539). Flying from United Kingdom to St. Louis in July is currently the most expensive (average of $814). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top airline flying from United Kingdom to St. Louis

Discover the top airline 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 2,558,603 searches. Data last updated diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$555Average$998FlexibilityNo cancel feeOn-time70%

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