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

For one-way options, check prices for WestJet. According to our data, you can fly for as low as $617. Users have also found prices from $837 and $1,074 on Aer Lingus and Iberia, respectively.

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 City - Lambert-St Louis as they are the most popular.

What are the most popular airlines that fly from United Kingdom to St. Louis?

Before booking your flight from United Kingdom to St. Louis check out the most popular airlines for this route: American Airlines, British Airways or Lufthansa.

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

Users have found that booking a flight from United Kingdom to St. Louis at least 14 days early can save you up to 47% on average compared to booking a flight this week. If booking 14 days before your flight isn’t an option for you, users have found flights from United Kingdom to St. Louis for as little as $686 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,503 for flights departing within the next 3 days.

What is the cheapest month to fly from United Kingdom to St. Louis?

Our data shows that March tends to be the cheapest month to fly to St. Louis from United Kingdom. Users have commonly found prices around $924 for the month, but tickets can be as low as $656. Due to multiple factors, prepare for potentially higher prices in December.

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.

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.

$1,034+ Flights from the United Kingdom to St. Louis

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Cheap flight deals from United Kingdom to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$663 (Kiwi.com)
One-way from	$562 (Kiwi.com)
Popular in	December
Cheapest in	March
Average price	$739

Provider with most accurate pricing for London (LON)-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for London (LON)-Lambert-St Louis flights.

Search Deals

From United Kingdom to Lambert-St Louis

Search Deals

One-way flight from United Kingdom to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($56 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Find 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 mars 31, 2025.

ons 4/302:00 pmLGW - STL

1 stop16h 04mMultiple Airlines

ons 5/148:15 pmSTL - LGW

2 stops31h 45mMultiple Airlines

Deal found 3/31

$663

ons 4/302:10 pmLHR - STL

2 stops36h 00mMultiple Airlines

ons 5/71:00 pmSTL - LHR

2 stops35h 20mMultiple Airlines

Deal found 3/30

$772

tors 5/85:40 pmLHR - STL

2 stops28h 09mUnited Airlines

tors 5/221:42 pmSTL - LHR

1 stop13h 58mUnited Airlines

Deal found 3/30

$782

mån 5/511:05 amLHR - STL

1 stop13h 28mBritish Airways

mån 5/121:45 pmSTL - LHR

1 stop12h 20mBritish Airways

Deal found 3/30

$826

mån 4/2812:15 pmLHR - STL

1 stop15h 57mIberia

mån 5/51:45 pmSTL - LHR

1 stop12h 20mIberia

Deal found 3/31

$860

ons 5/79:25 amLCY - STL

3 stops32h 45mMultiple Airlines

mån 5/1212:15 pmSTL - LCY

3 stops22h 10mMultiple Airlines

Deal found 3/30

$877

tis 9/161:50 pmEDI - STL

2 stops26h 11mUnited Airlines

ons 9/2411:05 amSTL - EDI

2 stops15h 00mUnited Airlines

Deal found 3/31

$890

mån 4/289:30 amLHR - STL

2 stops35h 19mAir Canada

mån 5/121:30 pmSTL - LHR

1 stop14h 30mAir Canada

Deal found 3/30

$946

tors 9/257:30 pmLHR - STL

1 stop24h 00mLufthansa

mån 9/295:18 pmSTL - LHR

2 stops17h 22mLufthansa

Deal found 3/30

$953

ons 9/2410:35 amEDI - STL

2 stops19h 14mIberia

ons 10/82:40 pmSTL - EDI

2 stops18h 00mIberia

Deal found 3/30

$967

tors 5/226:40 pmGLA - STL

2 stops31h 03mMultiple Airlines

sön 7/209:15 amSTL - GLA

2 stops30h 10mMultiple Airlines

Deal found 3/30

$971

ons 5/217:00 pmMAN - STL

3 stops46h 25mMultiple Airlines

mån 7/216:33 amSTL - MAN

3 stops28h 57mMultiple Airlines

Deal found 3/30

$997

Best flights from United Kingdom to St. Louis
Discover carefully curated flight deals from United Kingdom to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated mars 31, 2025.

ons 4/302:00 pmLGW - STL

1 stop16h 04mMultiple Airlines

ons 5/148:15 pmSTL - LGW

2 stops31h 45mMultiple Airlines

Deal found 3/31

$663

tors 5/85:40 pmLHR - STL

2 stops28h 09mUnited Airlines

tors 5/221:42 pmSTL - LHR

1 stop13h 58mUnited Airlines

Deal found 3/30

$782

mån 5/511:05 amLHR - STL

1 stop13h 28mBritish Airways

mån 5/121:45 pmSTL - LHR

1 stop12h 20mBritish Airways

Deal found 3/30

$826

mån 4/2812:15 pmLHR - STL

1 stop15h 57mIberia

mån 5/51:45 pmSTL - LHR

1 stop12h 20mIberia

Deal found 3/31

$860

mån 4/289:30 amLHR - STL

2 stops35h 19mAir Canada

mån 5/121:30 pmSTL - LHR

1 stop14h 30mAir Canada

Deal found 3/30

$946

lör 5/39:50 amLHR - STL

1 stop20h 09mFinnair

lör 5/104:15 pmSTL - LHR

1 stop12h 15mFinnair

Deal found 3/30

$951

tors 9/257:30 pmLHR - STL

1 stop24h 00mLufthansa

mån 9/295:18 pmSTL - LHR

2 stops17h 22mLufthansa

Deal found 3/30

$953

ons 5/710:00 amLCY - STL

2 stops16h 49mVirgin Atlantic

mån 5/126:05 pmSTL - LCY

2 stops16h 35mVirgin Atlantic

Deal found 3/30

$1,014

tis 9/169:00 amEDI - STL

1 stop17h 47mKLM

ons 9/245:40 pmSTL - EDI

1 stop12h 25mKLM

Deal found 3/31

$1,053

mån 4/283:05 pmLGW - STL

1 stop29h 40mAmerican Airlines

mån 5/127:32 amSTL - LGW

1 stop18h 38mAmerican Airlines

Deal found 3/30

$1,074

tors 5/112:35 pmMAN - STL

1 stop14h 04mAir France

tors 5/157:06 pmSTL - MAN

2 stops15h 49mAir France

Deal found 3/31

$1,091

ons 9/37:05 amLHR - STL

3 stops22h 34mScandinavian Airlines

ons 9/243:30 pmSTL - LHR

2 stops18h 30mScandinavian Airlines

Deal found 3/30

$1,124

Last-minute flights from United Kingdom to St. Louis
Discover last-minute flight deals from United Kingdom to St. Louis. Data last updated mars 31, 2025 and is based on user searches.

ons 4/912:30 pmEDI - STL

2 stops32h 06mUnited Airlines

ons 4/301:12 pmSTL - EDI

2 stops15h 23mUnited Airlines

Deal found 3/31

$963

fre 4/118:00 amLHR - STL

2 stops20h 09mUnited Airlines

fre 4/251:12 pmSTL - LHR

1 stop16h 33mUnited Airlines

Deal found 3/31

$942

lör 4/1912:35 pmMAN - STL

1 stop17h 01mAir France

tors 10/23:30 pmSTL - MAN

1 stop11h 05mAir France

Deal found 3/30

$1,127

lör 4/1911:10 amMAN - STL

2 stops18h 26mVirgin Atlantic

tors 10/23:30 pmSTL - MAN

2 stops15h 40mVirgin Atlantic

Deal found 3/30

$1,154

mån 4/2812:15 pmLHR - STL

1 stop15h 57mIberia

mån 5/51:45 pmSTL - LHR

1 stop12h 20mIberia

Deal found 3/31

$860

mån 4/289:30 amLHR - STL

2 stops35h 19mAir Canada

mån 5/121:30 pmSTL - LHR

1 stop14h 30mAir Canada

Deal found 3/30

$946

mån 4/283:05 pmLGW - STL

1 stop29h 40mAmerican Airlines

mån 5/127:32 amSTL - LGW

1 stop18h 38mAmerican Airlines

Deal found 3/30

$1,074

ons 4/302:00 pmLGW - STL

1 stop16h 04mMultiple Airlines

ons 5/148:15 pmSTL - LGW

2 stops31h 45mMultiple Airlines

Deal found 3/31

$663

ons 4/302:10 pmLHR - STL

2 stops36h 00mMultiple Airlines

ons 5/71:00 pmSTL - LHR

2 stops35h 20mMultiple Airlines

Deal found 3/30

$772

ons 4/3012:30 pmLHR - STL

1 stop14h 28mBritish Airways

ons 5/74:15 pmSTL - LHR

1 stop12h 15mBritish Airways

Deal found 3/30

$865

ons 4/305:00 pmLCY - STL

2 stops28h 47mLufthansa

ons 5/71:10 pmSTL - LCY

2 stops21h 15mLufthansa

Deal found 3/30

$1,103

ons 4/308:45 amLCY - STL

2 stops19h 24mMultiple Airlines

ons 5/143:43 pmSTL - LCY

2 stops18h 42mMultiple Airlines

Deal found 3/31

$1,165

One-way flights from United Kingdom to St. Louis
Search for one-way flight options from United Kingdom to St. Louis. Find affordable one-way fares based on user searches. Data last updated mars 31, 2025.

fre 7/48:30 amSTN - STL

3 stops32h 04mMultiple Airlines

Deal found 3/30

$562

ons 6/1111:30 amEDI - STL

2 stops17h 50mWestJet

Deal found 3/30

$617

tis 8/59:40 amEDI - STL

3 stops32h 47mMultiple Airlines

Deal found 3/29

$620

mån 7/76:15 amLHR - STL

3 stops40h 32mMultiple Airlines

Deal found 3/30

$631

tors 7/102:10 pmLHR - STL

2 stops28h 14mWestJet

Deal found 3/30

$734

lör 7/195:20 pmGLA - STL

3 stops36h 23mMultiple Airlines

Deal found 3/30

$740

fre 7/43:05 pmLGW - STL

2 stops28h 44mMultiple Airlines

Deal found 3/30

$771

mån 7/78:50 amLHR - STL

2 stops16h 24mAer Lingus

Deal found 3/30

$837

lör 7/195:20 pmGLA - STL

2 stops33h 10mAer Lingus

Deal found 3/30

$963

ons 6/1111:35 amEDI - STL

1 stop14h 44mIberia

Deal found 3/31

$1,074

fre 7/48:30 amLHR - STL

1 stop13h 17mLufthansa

Deal found 3/30

$1,185

mån 7/71:30 pmLHR - STL

1 stop12h 54mIberia

Deal found 3/30

$1,203

Cheapflights Fare Finder

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

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

ons 4/30

2:00 pm-12:04 am

1 stop16h 04m

Lambert-St Louis

ons 5/14

8:15 pm-10:00 am

2 stops31h 45m

$663

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

ons 4/30

2:10 pm-8:10 pm

2 stops36h 00m

Lambert-St Louis

ons 5/7

1:00 pm-6:20 am

2 stops35h 20m

$772

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

tors 5/8

5:40 pm-3:49 pm

2 stops28h 09m

Lambert-St Louis

tors 5/22

1:42 pm-9:40 am

1 stop13h 58m

$782

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

mån 5/5

11:05 am-6:33 pm

1 stop13h 28m

Lambert-St Louis

mån 5/12

1:45 pm-8:05 am

1 stop12h 20m

$826

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

mån 4/28

12:15 pm-10:12 pm

1 stop15h 57m

Lambert-St Louis

mån 5/5

1:45 pm-8:05 am

1 stop12h 20m

$860

LondonSt. Louis

LCY - STL

LCYSTL

London City

ons 5/7

9:25 am-12:10 pm

3 stops32h 45m

Lambert-St Louis

mån 5/12

12:15 pm-4:25 pm

3 stops22h 10m

$877

EdinburghSt. Louis

EDI - STL

EDISTL

Edinburgh Turnhouse

tis 9/16

1:50 pm-10:01 am

2 stops26h 11m

Lambert-St Louis

ons 9/24

11:05 am-8:05 am

2 stops15h 00m

$890

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

mån 4/28

9:30 am-2:49 pm

2 stops35h 19m

Lambert-St Louis

mån 5/12

1:30 pm-10:00 am

1 stop14h 30m

$946

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

tors 9/25

7:30 pm-1:30 pm

1 stop24h 00m

Lambert-St Louis

mån 9/29

5:18 pm-4:40 pm

2 stops17h 22m

$953

EdinburghSt. Louis

EDI - STL

EDISTL

Edinburgh Turnhouse

ons 9/24

10:35 am-11:49 pm

2 stops19h 14m

Lambert-St Louis

ons 10/8

2:40 pm-2:40 pm

2 stops18h 00m

$967

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 49 results

...

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, August is the cheapest month in which you can book a flight from United Kingdom to St. Louis (average of $311). Flying from United Kingdom to St. Louis in March is currently the most expensive (average of $356). 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?

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.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from United Kingdom to St. Louis, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,899 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,321 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,267 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines

7.6

Good

770 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France

7.4

Good

1,425 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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.
What are the cheapest airlines to fly from United Kingdom to St. Louis one-way?
For one-way options, check prices for WestJet. According to our data, you can fly for as low as $617. Users have also found prices from $837 and $1,074 on Aer Lingus and Iberia, respectively.
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 City - Lambert-St Louis as they are the most popular.
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, August is the cheapest month in which you can book a flight from United Kingdom to St. Louis (average of $311). Flying from United Kingdom to St. Louis in March is currently the most expensive (average of $356). 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

Fenton

Maryland Heights

Fairview Heights

Collinsville

Wentzville

Eureka

St. Peters

Festus

Glencoe

Alton

Farmington

Chesterfield

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from United Kingdom to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$278	Average$1,357	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$867	Average$1,263	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$925	Average$928	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$997	Average$1,274	FlexibilityNo cancel fee	On-time70%
Virgin Atlantic	Cheapest$1,146	Average$1,290	FlexibilityNo cancel fee	On-time72%

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$562+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from United Kingdom to St. Louis with Cheapflights

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3. Compare prices and book

Cheap 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 mars 31, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from United Kingdom to St. Louis

Cheapest flights from United Kingdom to St. LouisExplore 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 mars 31, 2025.

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 mars 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to St. Louis that are best for you.

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.

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?

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 mars 31, 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from United Kingdom to St. Louis, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

Traveling to a place near the United Kingdom?

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Alternative routes for United Kingdom to St. Louis

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Top 5 airlines flying from United Kingdom to St. Louis

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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 mars 31, 2025.