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$276+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LHR
mars 9 — mars 161
dim. 3/9
dim. 3/16
1 adult, Economy
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Cheap 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 mars 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$650
(oojo)

One-way from

$276
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$804
Provider with most accurate pricing for Lambert-St Louis-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-London (LON) flights.
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From Lambert-St Louis to United Kingdom
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One-way flight from Lambert-St Louis to United Kingdom
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 mars 4, 2025.

This oojo deal was found by Cheapflights users on 3/2. 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.
mar. 4/16:29 pmSTL - GLA
2 stops14h 11mBritish Airways
mar. 4/87:00 amGLA - STL
2 stops17h 02mBritish Airways
Deal found 3/2$648
This oojo deal was found by Cheapflights users on 3/3. 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.
jeu. 5/13:44 pmSTL - MAN
2 stops21h 36mBritish Airways
jeu. 5/89:05 amMAN - STL
2 stops16h 24mBritish Airways
Deal found 3/3$677
This United deal was found by Cheapflights users on 3/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/114:17 pmSTL - LHR
1 stop33h 23mUnited Airlines
mar. 10/215:40 pmLHR - STL
1 stop27h 36mUnited Airlines
Deal found 3/3$687
This Delta deal was found by Cheapflights users on 3/3. 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.
mar. 3/181:05 pmSTL - LHR
1 stop13h 10mDelta
mar. 4/19:55 amLHR - STL
2 stops16h 57mDelta
Deal found 3/3$689
This Gotogate deal was found by Cheapflights users on 3/3. 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.
jeu. 5/11:30 pmSTL - LHR
1 stop14h 30mMultiple Airlines
mar. 5/68:45 amLHR - STL
2 stops17h 13mMultiple Airlines
Deal found 3/3$691
This oojo deal was found by Cheapflights users on 3/3. 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.
lun. 10/66:27 pmSTL - LHR
2 stops15h 53mBritish Airways
mer. 10/2211:30 amLHR - STL
2 stops17h 55mBritish Airways
Deal found 3/3$693
This Scandinavian Airlines deal was found by Cheapflights users on 3/3. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 9/103:30 pmSTL - LHR
2 stops18h 30mScandinavian Airlines
lun. 9/226:40 amLHR - STL
2 stops20h 07mScandinavian Airlines
Deal found 3/3$694
This EaseMyTrip deal was found by Cheapflights users on 3/3. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/112:51 pmSTL - MAN
1 stop13h 44mMultiple Airlines
jeu. 5/88:40 pmMAN - STL
2 stops25h 55mMultiple Airlines
Deal found 3/3$696
This EaseMyTrip deal was found by Cheapflights users on 3/3. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/112:51 pmSTL - MAN
1 stop13h 44mAir France
jeu. 5/812:35 pmMAN - STL
1 stop14h 04mAir France
Deal found 3/3$700
This Air Canada deal was found by Cheapflights users on 3/3. 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.
lun. 4/213:30 pmSTL - LHR
2 stops33h 00mAir Canada
jeu. 5/19:30 amLHR - STL
2 stops16h 13mAir Canada
Deal found 3/3$701
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
mer. 3/55:20 pmSTL - LGW
1 stop34h 40mMultiple Airlines
jeu. 3/132:00 pmLGW - STL
1 stop14h 49mMultiple Airlines
Deal found 3/3$710
This American Airlines deal was found by Cheapflights users on 3/2. 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.
jeu. 4/173:44 pmSTL - BHX
2 stops22h 01mAmerican Airlines
jeu. 4/248:10 amBHX - STL
2 stops17h 13mAmerican Airlines
Deal found 3/2$712

Find flights from St. Louis to United Kingdom within your budget

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 mars 4, 2025.

Fly from

St. Louis

Fly to

United Kingdom

Route

Depart

Return

Price

St. LouisGlasgow

STL - GLA

STLGLA

Lambert-St Louis

mar. 3/18

5:37 pm-3:50 pm

2 stops17h 13m

Glasgow Intl

jeu. 3/27

7:20 pm-7:30 pm

2 stops29h 10m

$650

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

jeu. 5/1

3:44 pm-7:20 pm

2 stops21h 36m

Manchester

jeu. 5/8

9:05 am-7:29 pm

2 stops16h 24m

$677

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mar. 3/18

8:00 am-11:15 am

1 stop22h 15m

London Heathrow

mar. 4/1

5:40 pm-2:49 pm

1 stop27h 09m

$687

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

mar. 3/18

1:05 pm-7:15 am

1 stop13h 10m

London Heathrow

mar. 4/1

9:55 am-8:52 pm

2 stops16h 57m

$689

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

jeu. 5/1

1:30 pm-10:00 am

1 stop14h 30m

London Heathrow

mar. 5/6

8:45 am-7:58 pm

2 stops17h 13m

$691

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

jeu. 5/1

12:51 pm-8:35 am

1 stop13h 44m

Manchester

jeu. 5/8

8:40 pm-4:35 pm

2 stops25h 55m

$696

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

jeu. 5/1

12:51 pm-8:35 am

1 stop13h 44m

Manchester

jeu. 5/8

12:35 pm-8:39 pm

1 stop14h 04m

$700

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

lun. 4/21

3:30 pm-6:30 am

2 stops33h 00m

London Heathrow

jeu. 5/1

9:30 am-7:43 pm

2 stops16h 13m

$701

St. LouisBirmingham

STL - BHX

STLBHX

Lambert-St Louis

jeu. 4/17

3:44 pm-7:45 pm

2 stops22h 01m

Birmingham

jeu. 4/24

8:10 am-7:23 pm

2 stops17h 13m

$712

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

lun. 3/10

10:36 am-10:00 am

1 stop18h 24m

London Gatwick

sam. 3/15

2:00 pm-11:49 pm

1 stop14h 49m

$719

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

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.

Travel insights for flights from St. Louis to United Kingdom

Get recent, data-driven insights about flights from St. Louis to United Kingdom including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to United Kingdom (average of $661). Flying from St. Louis to United Kingdom in June is currently the most expensive (average of $1,135). 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 STL to GB?

Find hourly flight availability from St. Louis to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mars 4, 2025.

When flying from St. Louis to United Kingdom, 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 United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 mars 4, 2025.
See what other customers who have flown with Delta, KLM and Finnair from St. Louis to United Kingdom have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,068 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,322 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,434 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,679 reviews
Delta
8.0
Very good
8,068 reviews

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    $470 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on British Airways and United Airlines, with prices starting from $522 and $524, 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.

  • 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, November is the cheapest month in which you can book a flight from St. Louis to United Kingdom (average of $661). Flying from St. Louis to United Kingdom in June is currently the most expensive (average of $1,135). 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 mars 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$490Average$950FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$596Average$870FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$624Average$993FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$631Average$999FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$647Average$918FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$649Average$1,126FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$654Average$946FlexibilityNo cancel feeOn-time72%
IberiaCheapest$657Average$848FlexibilityNo cancel feeOn-time77%
DeltaCheapest$686Average$1,058FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$887Average$1,051FlexibilityNo cancel feeOn-timeN/A
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