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£356+ Cheap flights to St. Louis

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
27 Mar — 3 Apr1
1 adult

Flights to St. Louis in 2025

Find the latest flights to St. Louis in 2025, 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 22 March 2025.

Return from

£545

One-way from

£356

Popular in

December

Cheapest in

March

Average price

£571
20/4-3/5
  • 20/4-3/5
  • 2 total stops
  • 50h 09m total
  • London to St. Louis
17/6
  • 17/6
  • 3 total stops
  • 35h 56m total
  • London to St. Louis
Highest demand for flights based on searches. 5% potential increase in price (£34 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£25 potential savings vs. average return price).
Average for return flights in March 2025

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 22 March 2025.

Sun 20/414:00LGW - STL
1 stop15h 46mMultiple Airlines
Sat 3/517:47STL - LGW
1 stop34h 23mMultiple Airlines
Deal found 21/3£545
Tue 1/714:25LHR - STL
1 stop15h 27mIberia
Mon 14/713:24STL - LHR
1 stop12h 41mIberia
Deal found 21/3£681
Sun 20/408:30LHR - STL
1 stop12h 19mAir Canada
Sun 27/415:30STL - LHR
1 stop14h 20mAir Canada
Deal found 21/3£692
Wed 18/619:50STN - STL
3 stops29h 50mMultiple Airlines
Thu 26/607:30STL - STN
3 stops29h 55mMultiple Airlines
Deal found 21/3£708
Wed 2/410:05LHR - STL
1 stop16h 36mBritish Airways
Wed 9/418:00STL - LHR
1 stop10h 30mBritish Airways
Deal found 21/3£722
Wed 18/619:20LTN - STL
3 stops30h 20mMultiple Airlines
Thu 26/607:30STL - LTN
3 stops32h 50mMultiple Airlines
Deal found 21/3£726
Fri 2/510:30LHR - STL
2 stops15h 28mMultiple Airlines
Sat 17/513:30STL - LHR
1 stop11h 00mMultiple Airlines
Deal found 21/3£732
Sun 20/406:30LHR - STL
1 stop13h 00mUnited Airlines
Sun 27/415:40STL - LHR
2 stops13h 00mUnited Airlines
Deal found 21/3£742
Sat 3/506:55LHR - STL
2 stops20h 53mLufthansa
Sat 10/511:49STL - LHR
1 stop12h 56mLufthansa
Deal found 21/3£752
Tue 1/406:30LHR - STL
2 stops16h 22mDelta
Tue 8/410:42STL - LHR
2 stops16h 13mDelta
Deal found 21/3£833
Fri 11/409:40LHR - STL
2 stops14h 27mVirgin Atlantic
Mon 28/416:05STL - LHR
2 stops13h 20mVirgin Atlantic
Deal found 21/3£850
Fri 11/416:00LHR - STL
1 stop13h 15mAustrian Airlines
Fri 25/413:12STL - LHR
1 stop11h 08mAustrian Airlines
Deal found 21/3£890

Cheapflights Fare Finder

Locate flights to St. Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 22 March 2025.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sun 20/4

14:00-23:46

1 stop15h 46m

Lambert-St Louis

Sat 3/5

17:47-10:10

1 stop34h 23m

£545

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Tue 1/7

14:25-23:52

1 stop15h 27m

Lambert-St Louis

Mon 14/7

13:24-08:05

1 stop12h 41m

£681

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Sun 20/4

08:30-14:49

1 stop12h 19m

Lambert-St Louis

Sun 27/4

15:30-11:50

1 stop14h 20m

£692

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Wed 18/6

19:50-19:40

3 stops29h 50m

Lambert-St Louis

Thu 26/6

07:30-19:25

3 stops29h 55m

£708

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Wed 2/4

10:05-20:41

1 stop16h 36m

Lambert-St Louis

Wed 9/4

18:00-10:30

1 stop10h 30m

£722

LondonSt. Louis

LTN - STL

LTNSTL

London Luton

Wed 18/6

19:20-19:40

3 stops30h 20m

Lambert-St Louis

Thu 26/6

07:30-22:20

3 stops32h 50m

£726

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Fri 2/5

10:30-19:58

2 stops15h 28m

Lambert-St Louis

Sat 17/5

13:30-06:30

1 stop11h 00m

£732

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Sun 20/4

06:30-13:30

1 stop13h 00m

Lambert-St Louis

Sun 27/4

15:40-10:40

2 stops13h 00m

£742

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Sat 3/5

06:55-21:48

2 stops20h 53m

Lambert-St Louis

Sat 10/5

11:49-06:45

1 stop12h 56m

£752

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Tue 1/4

06:30-16:52

2 stops16h 22m

Lambert-St Louis

Tue 8/4

10:42-08:55

2 stops16h 13m

£833

Flights are sorted by cheapest return flights first.

Deals found on 21/3

Showing 1-10 of 44 results
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Best time to book a flight to St. Louis

Have a flexible travel schedule? Discover the best time to fly to 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.

Cheapflights Insights

Everything you need to know about your flight to St. Louis

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

Use this chart to determine the optimal time to book a return flight from London to St. Louis. Price data was last updated on 14 March 2025.

Booking 13 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.

How long is the flight to St. Louis?

On average, a flight from London to St. Louis takes 17 hours 6 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.

When is the cheapest time to fly to St. Louis?

Use this chart to determine the cheapest time to fly return from London to St. Louis. Price data was last updated on 30 June 2024.

Users looking for the lowest fares to St. Louis should consider flying on Wednesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday afternoons, when prices are usually at their highest.

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

The cheapest airlines flying from London to St. Louis are Finnair, Iberia and British Airways.

Rainfall in St. Louis by month

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

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.

Temperature in St. Louis by month

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

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated 22 March 2025.
Read through reviews of airlines servicing St. Louis, such as Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
8.0
Very Good

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

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

FAQs about flying to St. Louis

St. Louis climate

St Louis has moderate, seasonal weather, but storms can occur at any time of the year. July and August are the hottest and most humid months of the year, and January and February are cold, usually with snow. Winter temperatures range from below 0 to 13 degrees C, while summers have daily temperatures of between 14 to 32 degrees C.

Getting around St. Louis

The local transport connects the central regions and is a great way to travel throughout the city. It’s possible to access the majority of St. Louis tourist attractions via the public transport, so a car isn’t necessary. There are shuttle buses that will transport travellers from some attractions to the nearest station. Travellers can pick up a shuttle service map at any of the stations, or at first attraction. Bus services are part of the same network, but extend throughout St. Louis counties.

Renting a car is also an option. St. Louis is a very easy city to navigate and parking is abundant throughout the city. However, if you plan to drive to the suburbs, the navigation might become a little tricky. Make sure to check with your hotel or a local before hitting the motorway in your rental car.

Taxi stands are located at most major hotels around the city and at common tourist attractions. Cabs can also be reserved ahead of time.

Getting from the Airport to the City

Lambert–St. Louis International Airport (STL) is located around 10 miles (16 km) northwest of downtown St. Louis.

What is good to know if travelling to St. Louis?

  • Celebrate Independence Day in style with a flight to St. Louis. Grab a blanket and a couple of chairs and head down to the riverfront for 4th of July. Grab a spot underneath the Arch and enjoy the spectacle. From people watching, to concerts and outdoor vendors and markets, there is much to do to celebrate America’s birthday. And of course, an amazing fireworks display happens on the riverfront.
  • St. Louis’ Soulard Market Place is home to the best outdoor markets in the city, and also one of the best Mardi Gras parties in the Midwest.
  • The Butterfly Garden in St. Louis’ suburb, Chesterfield, is a must-see for travellers of any age. Located in Faust Park about 30 minutes west of St. Louis City, the Butterfly Garden is a delight for everyone.
  • You don’t have to be a baseball fan to appreciate Busch Stadium. Take a tour of the Stadium or take in a game.
  • Beer lovers know St. Louis as the home of Anheuser-Busch. Brewed right in the city centre, the Anheuser-Busch Brewery offers daily tours, and of course, beer tastings. 

St. Louis airport overview

Lambert-St Louis International Airport, or Lamberts as it’s affectionately known, is located 17km (10 miles) northwest of the city of St Louis, Missouri, and is in close proximity to connecting interstate highways. With four long runways and more than 12 million passengers per year, Lamberts is the state’s busiest airport; nonstop flights to Lambert-St Louis International Airport arrive from 88 domestic and international hubs.

Lambert-St Louis has a certain historical pedigree, too. It served as a balloon-launching base in the 19th century and was later visited by the Wright Brothers on one of their early flights. In 1910, Theodore Roosevelt took a flight from here, becoming the first US President to fly, and a few years later the first experimental parachute jump took place over the airfield.

A new construction project – launched in spring 2011 – is set to improve passenger services, boost airport operations and offer good views of the establishment. Terminal 1 is already an architectural spectacle, with exciting LED lighting that may be viewed from the interior and exterior of the building, as well as new flooring, ticket counters, signs, security checkpoints and an atrium, all of which have resulted in a completely new and attractive look for Lambert-St Louis International Airport.

  • 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.

  • 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, Finnair 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 £24, while return flights cost around £75.

  • How much is a return flight to St. Louis?

    A return flight to St. Louis will typically cost around £357, however they can be found for as little as £97.

  • 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 (13 hours 17 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).

See more FAQs

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