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$184+ Cheap flights from St. Louis (STL) to the United Kingdom

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LHR
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from St. Louis to United Kingdom

Cheapest flights from St. Louis to United Kingdom
Explore the most affordable flight options available from St. Louis to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Mytrip deal was found by Cheapflights users on 1/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/84:50 pm
STL
-
EDI
2 stops24h 15m
Multiple Airlines
Sun 3/1510:45 pm
EDI
-
STL
2 stops21h 44m
Multiple Airlines
Deal found 1/25$569
This Air Canada deal was found by Cheapflights users on 1/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:30 pm
STL
-
MAN
2 stops34h 55m
Air Canada
Thu 10/86:05 am
MAN
-
STL
2 stops19h 25m
Air Canada
Deal found 1/25$570
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:59 am
STL
-
EDI
2 stops15h 11m
British Airways
Mon 3/29:55 am
EDI
-
STL
2 stops19h 53m
British Airways
Deal found 1/26$611
This Virgin Atlantic deal was found by Cheapflights users on 1/27. 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.
Thu 2/266:47 pm
STL
-
MAN
1 stop33h 43m
Virgin Atlantic
Wed 3/111:30 pm
MAN
-
STL
1 stop15h 28m
Virgin Atlantic
Deal found 1/27$620
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:11 pm
STL
-
GLA
2 stops15h 54m
British Airways
Mon 4/205:40 pm
GLA
-
STL
1 stop31h 50m
British Airways
Deal found 1/26$621
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/13:50 pm
STL
-
LHR
1 stop11h 55m
Lufthansa
Fri 3/136:30 am
LHR
-
STL
1 stop13h 25m
Lufthansa
Deal found 1/27$622
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:30 am
STL
-
EDI
1 stop20h 05m
United Airlines
Wed 4/89:00 am
EDI
-
STL
2 stops37h 56m
United Airlines
Deal found 1/26$623
This Cheapflightsfares deal was found by Cheapflights users on 1/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/36:40 pm
STL
-
LHR
2 stops22h 15m
Lufthansa
Wed 2/189:30 am
LHR
-
STL
2 stops20h 29m
Lufthansa
Deal found 1/25$627
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/302:19 pm
STL
-
EDI
2 stops15h 06m
British Airways
Wed 4/89:15 am
EDI
-
STL
2 stops18h 59m
British Airways
Deal found 1/26$627
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 2/262:19 pm
STL
-
MAN
2 stops14h 41m
American Airlines
Wed 3/119:50 am
MAN
-
STL
2 stops16h 21m
American Airlines
Deal found 1/27$628
This Gotogate deal was found by Cheapflights users on 1/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/114:05 pm
STL
-
LHR
1 stop32h 30m
Multiple Airlines
Wed 4/226:30 am
LHR
-
STL
1 stop12h 55m
Multiple Airlines
Deal found 1/25$629
This oojo deal was found by Cheapflights users on 1/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:40 pm
STL
-
GLA
2 stops32h 10m
British Airways
Wed 4/229:30 am
GLA
-
STL
2 stops18h 44m
British Airways
Deal found 1/25$629

Find flight deals from St. Louis to United Kingdom

Keep the following information in mind while searching for St. Louis to United Kingdom flight deals. Data was last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$569
(Mytrip)

One-way from

$184
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$714

Good round-trip deal

$679 or less

Good one-way deal

$459 or less
Provider with most accurate pricing for Lambert-St Louis-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-London (LON) flights.
Search Deals
From Lambert-St Louis to United Kingdom
Search Deals
One-way flight from Lambert-St Louis to United Kingdom
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($308 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to United Kingdom.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to United Kingdom.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to United Kingdom 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 January 27, 2026.
Use the filters below to find and compare flights from St. Louis to the United Kingdom that are best for you.

Fly from

St. Louis

Fly to

United Kingdom

Route

Depart

Return

Price

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

Thu 2/26

6:47 pm-10:30 am

1 stop33h 43m

Manchester

Wed 3/11

1:30 pm-11:58 pm

1 stop15h 28m

$620

St. LouisGlasgow

STL - GLA

STLGLA

Lambert-St Louis

Mon 4/13

12:11 pm-10:05 am

2 stops15h 54m

Glasgow Intl

Mon 4/20

8:50 pm-7:30 pm

1 stop28h 40m

$621

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Mon 3/30

8:30 am-10:35 am

1 stop20h 05m

Edinburgh Turnhouse

Wed 4/8

9:00 am-4:56 pm

2 stops37h 56m

$623

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Mon 3/30

2:19 pm-11:25 am

2 stops15h 06m

Edinburgh Turnhouse

Wed 4/8

9:15 am-10:14 pm

2 stops18h 59m

$627

St. LouisGlasgow

STL - GLA

STLGLA

Lambert-St Louis

Sat 4/11

7:40 pm-9:50 am

2 stops32h 10m

Glasgow Intl

Wed 4/22

9:30 am-10:14 pm

2 stops18h 44m

$629

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Wed 3/4

8:00 am-7:30 am

2 stops17h 30m

London Gatwick

Thu 3/12

11:20 am-8:35 am

2 stops26h 15m

$631

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 3/4

2:45 pm-9:40 am

1 stop12h 55m

London Heathrow

Thu 3/12

6:35 am-5:59 pm

2 stops16h 24m

$639

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 3/11

7:00 pm-11:15 am

1 stop11h 15m

London Heathrow

Wed 3/18

6:50 am-5:59 pm

2 stops16h 09m

$639

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 2/9

3:45 pm-11:40 am

1 stop13h 55m

London Heathrow

Wed 2/25

6:30 am-4:45 pm

2 stops16h 15m

$640

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 2/18

11:55 am-7:50 am

1 stop13h 55m

London Heathrow

Wed 2/25

6:30 am-4:42 pm

2 stops16h 12m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis to United Kingdom

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

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

Currently, February is the cheapest month in which you can book a flight from St. Louis to United Kingdom (average of $517). Flying from St. Louis to United Kingdom in June is currently the most expensive (average of $738). 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.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated January 27, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from St. Louis to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,119 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,205 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,197 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Iberia
7.0
Good
3,098 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,702 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to United Kingdom. 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 from for flights from St. Louis to United Kingdom?

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

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

    For as low as $621, Virgin Atlantic can have you in United Kingdom from St. Louis in 15h 54m. Airlines will cover a distance of 3914 mi. This flight may include one or multiple stops.

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

    $242 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 Air Canada and Aer Lingus, with prices starting from $394 and $415, respectively.

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

    The most popular flight routes from St. Louis to United Kingdom are Lambert-St Louis - London Heathrow, Lambert-St Louis - London Gatwick and Lambert-St Louis - London City.

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

    Looking at all options, your cheapest flight can be booked for $315. While the most popular route (Lambert-St Louis - London Heathrow) can be booked for $618 on average, our data indicates $670 when flying from St. Louis to United Kingdom.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from St. Louis to United Kingdom (average of $517). Flying from St. Louis to United Kingdom in June is currently the most expensive (average of $738). 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

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Alternative routes for St. Louis to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from St. Louis to United Kingdom

Discover the top 10 airlines that operate flights from St. Louis to United Kingdom. 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$529Average$878FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$565Average$865FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$573Average$969FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$575Average$837FlexibilityNo cancel feeOn-time70%
DeltaCheapest$577Average$879FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$580Average$909FlexibilityNo cancel feeOn-time69%
IberiaCheapest$597Average$986FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$602Average$1,102FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$615Average$914FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$632Average$818FlexibilityNo cancel feeOn-time76%

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