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Cheap flights from St. Louis to London from £268

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LON
26 nov — 3 dec1
1 adult

The best prices from Lambert-St Louis to London are usually found in February or April, booked 2 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Cheap flight deals from St. Louis to London

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 november 2024.

Round-trip from

£598

One-way from

£268

Popular in

June

Cheapest in

February
Lufthansa
  • Lufthansa
  • 11/1-24/1
  • 3 total stops
  • 46h 45m total
  • St. Louis to London
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8/1
  • 8/1
  • 3 total stops
  • 16h 35m total
  • St. Louis to London
Search Deals
High demand for flights, 35% potential price rise
Search Deals
Best time to find cheap flights, 22% potential price drop
Search Deals

Find flight deals from St. Louis to London

Cheapest flights from St. Louis to London
Explore the most affordable flight options available from St. Louis to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 november 2024.

ons 4/1218:46STL - LGW
2 stops33h 49mMultiple Airlines
tors 12/1214:00LGW - STL
1 stop15h 24mMultiple Airlines
Deal found 20/11£622
fre 6/1215:45STL - LHR
2 stops20h 05mMultiple Airlines
tors 12/1216:20LHR - STL
2 stops27h 35mMultiple Airlines
Deal found 20/11£628
lör 14/1215:50STL - LHR
1 stop32h 40mAir Canada
fre 27/1215:00LHR - STL
2 stops30h 06mAir Canada
Deal found 20/11£654
ons 11/1212:56STL - LHR
1 stop12h 59mDelta
fre 27/1209:10LHR - STL
1 stop14h 14mDelta
Deal found 20/11£692
fre 13/1213:36STL - LHR
1 stop11h 44mBritish Airways
fre 27/1214:10LHR - STL
1 stop14h 09mBritish Airways
Deal found 20/11£705
ons 4/1212:00STL - LHR
1 stop12h 20mUnited Airlines
fre 13/1206:30LHR - STL
1 stop13h 25mUnited Airlines
Deal found 20/11£706
ons 4/1215:45STL - LTN
2 stops18h 40mMultiple Airlines
lör 7/1206:25LTN - STL
3 stops38h 56mMultiple Airlines
Deal found 20/11£723
tors 5/1210:09STL - LHR
1 stop14h 11mVirgin Atlantic
tors 12/1210:50LHR - STL
1 stop13h 09mVirgin Atlantic
Deal found 20/11£729
tors 12/1211:51STL - LHR
1 stop12h 29mIberia
fre 27/1214:10LHR - STL
1 stop14h 09mIberia
Deal found 20/11£732
lör 7/1213:08STL - LHR
2 stops20h 52mScandinavian Airlines
lör 14/1206:40LHR - STL
2 stops23h 03mScandinavian Airlines
Deal found 19/11£732
fre 6/1207:04STL - LHR
2 stops18h 06mLufthansa
fre 13/1206:30LHR - STL
1 stop13h 25mLufthansa
Deal found 20/11£744
tis 3/1205:45STL - LGW
2 stops19h 45mAmerican Airlines
fre 13/1211:20LGW - STL
2 stops27h 34mAmerican Airlines
Deal found 19/11£756

Find flights from St. Louis to London within your budget

Customise your flight search to find flights from St. Louis to London 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 939,815 searches. Data last updated 21 november 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

lör 11/1

15:50-07:10

2 stops33h 20m

London Heathrow

fre 24/1

06:30-13:55

1 stop13h 25m

£598

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

ons 29/1

14:55-11:15

1 stop14h 20m

London Heathrow

fre 7/2

06:30-13:55

1 stop13h 25m

£615

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

ons 4/12

18:46-10:35

2 stops33h 49m

London Gatwick

tors 12/12

14:00-23:24

1 stop15h 24m

£622

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

ons 19/2

10:59-18:50

3 stops25h 51m

London Heathrow

mån 24/2

06:40-23:38

2 stops22h 58m

£641

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

lör 14/12

15:50-06:30

1 stop32h 40m

London Heathrow

fre 27/12

15:00-15:06

2 stops30h 06m

£654

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

tis 28/1

15:50-12:50

2 stops15h 00m

London City

tis 4/2

09:15-15:06

2 stops35h 51m

£657

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

ons 11/12

12:56-07:55

1 stop12h 59m

London Heathrow

fre 27/12

09:10-17:24

1 stop14h 14m

£692

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

fre 13/12

13:36-07:20

1 stop11h 44m

London Heathrow

fre 27/12

14:10-22:19

1 stop14h 09m

£705

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

sön 27/4

10:24-07:15

2 stops14h 51m

London City

sön 4/5

13:45-23:38

2 stops15h 53m

£718

St. LouisLondon

STL - LTN

STLLTN

Lambert-St Louis

ons 4/12

15:45-16:25

2 stops18h 40m

London Luton

lör 7/12

06:25-15:21

3 stops38h 56m

£723

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 46 results
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Best time to book a flight from St. Louis to London

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

Travel insights for flights from St. Louis to London

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

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

Use this chart to determine the optimal time to book a return flight from St. Louis to London. Price data was last updated on 15 November 2024.

Booking 2 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to London (average of £112). Flying from St. Louis to London in July is currently the most expensive (average of £160). 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 LON?

Find hourly flight availability from St. Louis to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 november 2024.

It’s optimal to fly from St. Louis to London in the morning. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight at midday.

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 21 november 2024.
Read through reviews of airlines operating flights from St. Louis to London, such as United Airlines, Scandinavian Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

Delta
8.0
Very Good
8,756 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

Finnair
7.7
Good
1,300 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

Austrian Airlines
7.6
Good
805 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 10

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 London. 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 London?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to London. On average, Lambert-St Louis has 0 outbound flights to London per day from 5 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • What are the cheapest airlines flying from St. Louis to London round-trip?

    United Airlines, at £615, was found to be the cheapest airline from St. Louis to London.Alternate airlines flying return to your destination include Scandinavian Airlines and Air Canada. Users have found that United Airlines is 15% cheaper than the other options available to this destination.

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

    The cheapet airlines for a one-way flight from St. Louis to London are Scandinavian Airlines (£339), Lufthansa (£388), and Air Canada (£393).

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

    While some choose either Lambert-St Louis - London Gatwick or Lambert-St Louis - London City, Lambert-St Louis - London Heathrow is the most popular route from St. Louis to London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to London 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 London?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to London (average of £112). Flying from St. Louis to London in July is currently the most expensive (average of £160). 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

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Top 5 airlines flying from St. Louis to London

Discover the top 5 airlines that operate flights from St. Louis to London. 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 939,815 searches. Data last updated 21 november 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£492Average£900FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£509Average£769FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£520Average£761FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£538Average£562FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£545Average£1,226FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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How does Cheapflights help users find flights from St. Louis to London?

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

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from St. Louis to London with no change fees.

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

Yes! Start tracking prices for St. Louis to London 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.

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