When is the best time to book a flight to St. Louis?

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What airport do you fly into for flights to St. Louis?

If you book a flight to St. Louis, you will be flying into 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. There are 2 flights from London to Lambert-St Louis per day from 11 different airlines.

Can I find cheaper flights to St. Louis if I am willing to have stopovers?

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to St. Louis on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to St. Louis?

Based on reviews from Cheapflights users, American Airlines is rated the highest out of the airlines that fly to St. Louis.

What is the cheapest airport to fly to in St. Louis?

Lambert-St Louis is currently the cheapest airport to fly to in St. Louis. One-way flights to Lambert-St Louis typically cost £139, while return flights cost around £216.

Where does the fastest flight to St. Louis depart from?

For those looking to save time traveling to St. Louis, London offers the quickest one-way flight (9 hours 5 minutes).

Does Lambert-St Louis have car hire?

Yes. Those touching down at Lambert-St Louis can take advantage of the car hire services offered upon their arrival.

Are there hotels close to Lambert-St Louis?

Yes. Lambert-St Louis has hotels nearby for those requiring accommodations. Hampton Inn St. Louis-Airport is the closest property to Lambert-St Louis (0.0 mi away from Lambert-St Louis).

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

The most popular airlines flying from London to St. Louis are British Airways, Lufthansa and United Airlines.

How long is the flight to St. Louis?

On average, a flight from London to St. Louis takes 14 hours 16 minutes. Flights to St. Louis from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to St. Louis?

The cheapest airlines flying from London to St. Louis are American Airlines, Aer Lingus and United Airlines.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 inches per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Cheap Flights to St. Louis from £271

Flights to St. Louis in 2026

Return from	£629
One-way from	£271
Popular in	July
Cheapest in	February
Average price	£670
Good round-trip deal	£798 or less

British Airways
2/9-23/9
2 total stops
26h 11m total
London to St. Louis

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28/5
1 total stop
15h 57m total
London to St. Louis

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Highest demand for flights based on searches. 11% potential increase in price (£93 potential increase over avg. return price).

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Cheapest flight prices on average. 1% potential price decrease (£14 potential savings vs. average return price).

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Average for return flights in May 2026

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Price to beat on a round-trip flight from London to Lambert-St Louis.

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Find flight deals to St. Louis

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights to St. Louis
Explore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 9 May 2026.

Wed 2/909:45

LHR

STL

1 stop12h 39m

British Airways

Wed 23/911:18

STL

LHR

1 stop13h 32m

British Airways

Deal found 5/5£629

Wed 2/911:45

LHR

STL

2 stops17h 52m

KLM

Wed 23/919:05

STL

LHR

1 stop12h 10m

KLM

Deal found 8/5£630

Wed 2/911:45

LHR

STL

2 stops17h 52m

KLM

Wed 23/919:05

STL

LHR

1 stop12h 10m

KLM

Deal found 7/5£631

Wed 2/916:25

LHR

STL

Nonstop9h 05m

British Airways

Wed 23/912:47

STL

LHR

1 stop12h 08m

British Airways

Deal found 4/5£633

Wed 2/911:15

LHR

STL

1 stop12h 47m

Virgin Atlantic

Wed 23/913:30

STL

LHR

1 stop11h 45m

Virgin Atlantic

Deal found 4/5£634

Wed 2/908:40

LHR

STL

2 stops16h 02m

Multiple Airlines

Wed 23/912:47

STL

LHR

1 stop12h 08m

Multiple Airlines

Deal found 6/5£637

Mon 28/918:10

LHR

STL

2 stops35h 10m

Finnair

Sun 4/1016:29

STL

LHR

1 stop33h 11m

Finnair

Deal found 5/5£637

Mon 8/614:00

LGW

STL

2 stops48h 47m

Multiple Airlines

Mon 22/616:17

STL

LGW

1 stop35h 43m

Multiple Airlines

Deal found 7/5£640

Thu 25/614:00

LGW

STL

1 stop15h 49m

Multiple Airlines

Thu 9/716:09

STL

LGW

1 stop35h 51m

Multiple Airlines

Deal found 4/5£641

Wed 2/906:30

LHR

STL

1 stop12h 55m

Multiple Airlines

Wed 9/913:30

STL

LHR

2 stops15h 10m

Multiple Airlines

Deal found 8/5£642

Tue 22/916:25

LHR

STL

Nonstop9h 05m

British Airways

Tue 6/1016:51

STL

LHR

1 stop13h 19m

British Airways

Deal found 7/5£642

Tue 22/916:25

LHR

STL

Nonstop9h 05m

American Airlines

Tue 6/1021:35

STL

LHR

Nonstop8h 00m

American Airlines

Deal found 5/5£643

Best flights to St. Louis
Discover carefully curated flight deals to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 May 2026.

Wed 2/909:55

LHR

STL

2 stops16h 36m

Virgin Atlantic

Wed 23/910:45

STL

LHR

2 stops14h 00m

Virgin Atlantic

Deal found 6/5£649

Fri 5/614:00

LGW

STL

1 stop15h 57m

Multiple Airlines

Sun 21/618:31

STL

LGW

2 stops33h 29m

Multiple Airlines

Deal found 7/5£677

Mon 7/910:00

LCY

STL

2 stops16h 50m

Delta

Fri 11/915:42

STL

LCY

2 stops13h 58m

Delta

Deal found 8/5£711

Mon 8/609:15

LHR

STL

1 stop14h 04m

British Airways

Mon 22/618:13

STL

LHR

1 stop11h 57m

British Airways

Deal found 8/5£768

Thu 25/610:00

LCY

STL

2 stops19h 56m

KLM

Thu 9/718:58

STL

LCY

2 stops17h 32m

KLM

Deal found 4/5£831

Fri 11/906:55

STN

STL

2 stops44h 27m

Turkish Airlines

Sat 19/917:32

STL

STN

2 stops34h 23m

Turkish Airlines

Deal found 5/5£1,034

Wed 2/909:55

LHR

STL

2 stops16h 36m

Virgin Atlantic

Wed 23/915:42

STL

LHR

2 stops13h 38m

Virgin Atlantic

Deal found 8/5£651

Wed 2/909:55

LHR

STL

2 stops16h 36m

Virgin Atlantic

Wed 23/915:42

STL

LHR

2 stops13h 38m

Virgin Atlantic

Deal found 7/5£652

Sun 6/910:25

LGW

STL

2 stops18h 36m

Delta

Fri 11/916:13

STL

LGW

2 stops17h 47m

Delta

Deal found 8/5£728

Tue 9/619:55

LTN

STL

2 stops23h 30m

Multiple Airlines

Sun 21/614:15

STL

LTN

3 stops18h 20m

Multiple Airlines

Deal found 5/5£733

Wed 17/606:30

LHR

STL

2 stops14h 47m

Delta

Tue 23/617:36

STL

LHR

1 stop13h 29m

Delta

Deal found 5/5£769

Wed 17/606:30

LHR

STL

2 stops16h 16m

Delta

Tue 23/617:36

STL

LHR

1 stop13h 29m

Delta

Deal found 6/5£769

Fri 5/608:15

LTN

STL

3 stops18h 10m

Multiple Airlines

Sun 21/614:15

STL

LTN

2 stops25h 25m

Multiple Airlines

Deal found 7/5£883

Wed 17/609:55

LHR

STL

2 stops16h 44m

Delta

Tue 23/615:57

STL

LHR

2 stops14h 18m

Delta

Deal found 4/5£771

Wed 12/807:45

LCY

STL

2 stops15h 07m

KLM

Wed 26/811:13

STL

LCY

2 stops14h 02m

KLM

Deal found 8/5£1,031

Fri 11/910:50

LGW

STL

2 stops40h 32m

Turkish Airlines

Sat 19/917:32

STL

LGW

2 stops22h 53m

Turkish Airlines

Deal found 5/5£1,040

Wed 29/714:00

LGW

STL

1 stop15h 59m

Multiple Airlines

Wed 5/816:52

STL

LGW

2 stops35h 08m

Multiple Airlines

Deal found 8/5£894

Wed 17/606:30

LHR

STL

2 stops14h 47m

Delta

Tue 23/613:59

STL

LHR

2 stops17h 06m

Delta

Deal found 8/5£771

Mon 8/611:35

LGW

STL

2 stops30h 31m

Multiple Airlines

Mon 22/614:15

STL

LGW

3 stops22h 10m

Multiple Airlines

Deal found 8/5£898

Wed 17/606:30

LHR

STL

2 stops14h 47m

Delta

Tue 23/613:59

STL

LHR

2 stops17h 06m

Delta

Deal found 7/5£772

Sun 28/617:35

STN

STL

2 stops33h 41m

Turkish Airlines

Mon 6/717:33

STL

STN

2 stops41h 17m

Turkish Airlines

Deal found 6/5£1,151

Sun 28/614:00

LGW

STL

1 stop15h 49m

Multiple Airlines

Mon 6/716:09

STL

LGW

1 stop35h 51m

Multiple Airlines

Deal found 6/5£902

Wed 17/610:45

LHR

STL

1 stop12h 38m

Delta

Tue 23/615:57

STL

LHR

1 stop15h 08m

Delta

Deal found 6/5£782

Wed 17/617:45

STN

STL

2 stops33h 45m

Turkish Airlines

Tue 23/617:29

STL

STN

2 stops41h 11m

Turkish Airlines

Deal found 7/5£1,153

Tue 16/615:15

LHR

STL

1 stop14h 41m

Delta

Tue 23/615:57

STL

LHR

1 stop15h 08m

Delta

Deal found 5/5£783

Wed 10/612:40

LGW

STL

1 stop13h 29m

Multiple Airlines

Wed 24/614:15

STL

LGW

1 stop14h 30m

Multiple Airlines

Deal found 8/5£949

Mon 8/610:50

STN

STL

2 stops40h 31m

Turkish Airlines

Mon 22/617:29

STL

STN

2 stops41h 21m

Turkish Airlines

Deal found 6/5£1,153

Wed 17/610:45

LHR

STL

1 stop15h 54m

Delta

Tue 23/617:36

STL

LHR

1 stop13h 29m

Delta

Deal found 4/5£784

Mon 8/610:50

STN

STL

2 stops40h 40m

Turkish Airlines

Mon 22/617:29

STL

STN

2 stops34h 26m

Turkish Airlines

Deal found 7/5£1,158

Wed 2/920:25

STN

STL

2 stops28h 17m

Multiple Airlines

Wed 23/908:55

STL

STN

3 stops24h 40m

Multiple Airlines

Deal found 7/5£991

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Flights to St. Louis in 2026

Find the latest flights to St. Louis in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 9 May 2026.

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One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals to St. Louis

Cheapest flights to St. Louis
Explore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 9 May 2026.

Explore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 9 May 2026.

Best flights to St. Louis
Discover carefully curated flight deals to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 May 2026.

Discover carefully curated flight deals to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 May 2026.

Direct flights to St. Louis
Explore direct flight options to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 May 2026.

Explore direct flight options to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 May 2026.

Last-minute flights to St. Louis
Discover last-minute flight deals to St. Louis. Data last updated 9 May 2026 and is based on user searches.

Discover last-minute flight deals to St. Louis. Data last updated 9 May 2026 and is based on user searches.

One-way flights to St. Louis
Search for one-way flight options to St. Louis. Find affordable one-way fares based on user searches. Data last updated 9 May 2026.

Search for one-way flight options to St. Louis. Find affordable one-way fares based on user searches. Data last updated 9 May 2026.

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Cheap flights to St. Louis – Compare and Save

Flights to St. Louis in 2026

Find the latest flights to St. Louis in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 9 May 2026.

Return from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals to St. Louis

Cheapest flights to St. LouisExplore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 9 May 2026.

Explore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 9 May 2026.

Best flights to St. LouisDiscover carefully curated flight deals to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 May 2026.

Discover carefully curated flight deals to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 May 2026.

Direct flights to St. LouisExplore direct flight options to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 May 2026.

Explore direct flight options to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 May 2026.

Last-minute flights to St. LouisDiscover last-minute flight deals to St. Louis. Data last updated 9 May 2026 and is based on user searches.

Discover last-minute flight deals to St. Louis. Data last updated 9 May 2026 and is based on user searches.

One-way flights to St. LouisSearch for one-way flight options to St. Louis. Find affordable one-way fares based on user searches. Data last updated 9 May 2026.

Search for one-way flight options to St. Louis. Find affordable one-way fares based on user searches. Data last updated 9 May 2026.

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Cheapest flights to St. Louis
Explore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 9 May 2026.

Best flights to St. Louis
Discover carefully curated flight deals to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 May 2026.

Direct flights to St. Louis
Explore direct flight options to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 May 2026.

Last-minute flights to St. Louis
Discover last-minute flight deals to St. Louis. Data last updated 9 May 2026 and is based on user searches.

One-way flights to St. Louis
Search for one-way flight options to St. Louis. Find affordable one-way fares based on user searches. Data last updated 9 May 2026.