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£67+ Cheap flights from 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 30/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — LHR
14 Mar — 21 Mar1
1 adult
1 adult, Economy, 0 bags

What to know about flights from St. Louis

Discover essential information about flights departing from St. Louis, including flight schedules, destinations, airlines operating at the St. Louis airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 12 February 2026.

Cheapest airline

British Airways

Good round-trip deal

£327 or less

Good one-way deal

£163 or less
On average, British Airways currently has the cheapest one-way flight from Lambert-St Louis (avg. price of £610).
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Price to beat on a round-trip flight from Lambert-St Louis.
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Price to beat on a one-way flight from Lambert-St Louis.
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Find flights from St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from St. Louis
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 12 February 2026.

Wed 18/320:12
STL
-
SAT
1 stop12h 54m
Frontier
Mon 23/314:40
SAT
-
STL
1 stop8h 39m
Frontier
Deal found 10/2£138
Thu 9/406:00
STL
-
SAT
1 stop4h 50m
United Airlines
Mon 13/418:02
SAT
-
STL
1 stop4h 26m
United Airlines
Deal found 9/2£141
Tue 30/607:20
STL
-
SAT
1 stop6h 26m
Delta
Thu 16/706:45
SAT
-
STL
1 stop7h 52m
Delta
Deal found 8/2£144
Wed 18/318:50
STL
-
SAT
1 stop5h 09m
American Airlines
Sat 21/306:00
SAT
-
STL
1 stop4h 59m
American Airlines
Deal found 10/2£145
Sat 7/317:01
STL
-
SAT
1 stop7h 34m
Delta
Wed 11/305:10
SAT
-
STL
1 stop5h 59m
Delta
Deal found 9/2£147
Tue 7/409:10
STL
-
SAT
2 stops8h 33m
United Airlines
Sat 11/418:02
SAT
-
STL
1 stop4h 26m
United Airlines
Deal found 10/2£148
Wed 6/518:50
STL
-
SAT
1 stop5h 40m
Delta
Sun 10/516:09
SAT
-
STL
1 stop7h 50m
Delta
Deal found 9/2£152
Tue 14/706:00
STL
-
SAT
1 stop5h 19m
Delta
Tue 21/710:45
SAT
-
STL
1 stop5h 13m
Delta
Deal found 11/2£154
Wed 18/320:12
STL
-
SAT
1 stop12h 54m
Frontier
Sun 22/306:45
SAT
-
STL
1 stop27h 04m
Frontier
Deal found 10/2£158
Wed 18/311:32
STL
-
SAT
2 stops21h 55m
Multiple Airlines
Sun 22/306:45
SAT
-
STL
1 stop27h 04m
Multiple Airlines
Deal found 10/2£168
Sat 11/420:03
STL
-
INV
2 stops32h 12m
British Airways
Wed 22/407:35
INV
-
STL
2 stops17h 58m
British Airways
Deal found 8/2£370
Mon 6/406:32
STL
-
INV
2 stops24h 13m
Virgin Atlantic
Wed 15/406:25
INV
-
STL
2 stops20h 17m
Virgin Atlantic
Deal found 9/2£378

Find flights from St. Louis within your budget

 
Find flights departing from St. Louis that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 12 February 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 1/7

17:29-23:04

1 stop5h 35m

San Antonio

Sat 4/7

06:49-12:11

1 stop5h 22m

£144

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 30/6

07:20-13:46

1 stop6h 26m

San Antonio

Thu 16/7

06:45-14:37

1 stop7h 52m

£144

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 30/6

10:23-16:00

1 stop5h 37m

San Antonio

Thu 16/7

06:49-12:11

1 stop5h 22m

£144

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 18/3

20:12-09:06

1 stop12h 54m

San Antonio

Mon 23/3

14:40-10:32

2 stops19h 52m

£166

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Thu 30/4

18:50-00:34

1 stop5h 44m

San Antonio

Sun 3/5

05:20-10:34

1 stop5h 14m

£174

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 29/7

17:30-00:14

1 stop6h 44m

San Antonio

Fri 31/7

06:45-14:37

1 stop7h 52m

£174

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 13/5

07:45-15:39

2 stops7h 54m

San Antonio

Mon 18/5

18:02-22:30

1 stop4h 28m

£177

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Thu 9/4

07:45-15:46

2 stops8h 01m

San Antonio

Mon 13/4

18:02-22:28

1 stop4h 26m

£177

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 29/4

06:00-10:50

1 stop4h 50m

San Antonio

Mon 4/5

18:02-22:30

1 stop4h 28m

£185

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Mon 25/5

17:29-23:04

1 stop5h 35m

San Antonio

Sat 30/5

18:02-22:37

1 stop4h 35m

£195

Flights are sorted by cheapest return flights first.

Deals found on 8/2

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

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

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

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

Use this chart to determine the optimal time to book a return flight from St. Louis to Heathrow. Price data was last updated on 6 February 2026.

Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis. 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?

Currently, February is the cheapest month in which you can book a flight from St. Louis (average of £387). Flying from St. Louis in June will prove the most costly (average of £731). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from St. Louis?

Many airlines operate round-trip flights from St. Louis: Virgin Atlantic, British Airways, Air Canada, United Airlines. These airlines fly to the following popular destinations: London.

Virgin Atlantic
Virgin Atlantic
From £402
British Airways
British Airways
From £424
Lufthansa
Lufthansa
From £1,029
Air Canada
Air Canada
From £428

What are popular destinations to fly to from St. Louis?

If you’re flying from St. Louis, these routes are more frequently taken by airlines Chicago (335 flights per day), Atlanta (105 flights per day) and New York (103 flights per day).

Chicago
Chicago
From £335
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From £163
London
London
From £431
Tampa
Tampa
From £285

What is the cheapest place to fly to from St. Louis?

The cheapest city to fly to from St. Louis is Atlanta Hartsfield-Jackson, with prices starting at £163. Explore other affordable destinations below.

Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From £163
Philadelphia
Philadelphia
From £179
Salt Lake City
Salt Lake City
From £226
Montreal
Montreal
From £274

Airline reviews for flights from St. Louis

Get insights into the airlines that provide service from 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 airline for your flight from St. Louis. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Read through reviews of airlines serving St. Louis, such as Virgin Atlantic, United Airlines, andAir Canada. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Entertainment

7.6

Comfort

7.3

Overall

7.5

Crew

8.2

Food

6.9

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
678 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Entertainment

7.6

Comfort

7.3

Overall

7.5

Crew

8.2

Food

6.9

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
9,279 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Entertainment

7.6

Comfort

7.3

Overall

7.5

Crew

8.2

Food

6.9

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Air Canada
7.1
Good
10,709 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Entertainment

7.6

Comfort

7.3

Overall

7.5

Crew

8.2

Food

6.9

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,731 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Entertainment

7.6

Comfort

7.3

Overall

7.5

Crew

8.2

Food

6.9

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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Related info for your journey

Access useful and relevant information related to your journey from St. Louis. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 12 February 2026.

  • What are the most popular destinations to fly to from St. Louis?

    This month, the top selected destinations from St. Louis are Denver, Cancún, Atlanta. Throughout the year, Denver, Cancún, Atlanta are some of the top choices made by users flying from St. Louis.

  • What is the cheapest flight from St. Louis to anywhere?

    Users have flown out of St. Louis for as low as £163 to Atlanta (prices may vary depending on the airline and departure time). On average, users have booked flights for £464 to fly from St. Louis.

  • What are the cheapest airlines flying from St. Louis to anywhere?

    Over the past few days, we've found that Virgin Atlantic, British Airways, and Air Canada have the cheapest prices from St. Louis. Virgin Atlantic flights from St. Louis to London Heathrow (£402), British Airways flights from St. Louis to London Heathrow (£424), and Air Canada flights from St. Louis to London Heathrow (£428).

  • What is the cheapest premium economy flight from St. Louis?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from St. Louis.
    Lambert-St Louis to Washington, D.C. Dulles Intl Airport from £1,250
    Lambert-St Louis to Frankfurt am Main Airport from £1,729
    Lambert-St Louis to Dallas/Fort Worth Airport from £2,681

  • What is the cheapest first class flight from St. Louis?

    If you’re looking for a cheap first-class flight from St. Louis, consider Chicago. Prices start at £356 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from St. Louis?

    At the present moment the cheapest month to fly from St. Louis is currently February; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from St. Louis?

    Check out the cheapest flights from St. Louis to embark to:
    Travel from St. Louis to London from £453 round trip

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

    Deals for flights from St. Louis are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

    Cheapflights simply makes it quick and affordable to book flights from St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

    Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis flexibly with Cheapflights today.

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

    Not ready to book yet? You can track prices for flights from St. Louis on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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

Deals for flights from St. Louis are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis flexibly with Cheapflights today.

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

Not ready to book yet? You can track prices for flights from St. Louis on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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