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£87+ 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 24/3. 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
27 Jan — 3 Feb1
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 28 December 2025.

Cheapest airline

British Airways

Good round-trip deal

£78 or less

Good one-way deal

£224 or less
On average, British Airways currently has the cheapest one-way flight from Lambert-St Louis (avg. price of £617).
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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 28 December 2025.

Sun 25/105:00STL - LAS
Nonstop3h 40mSouthwest
Sun 1/218:40LAS - STL
Nonstop3h 05mSouthwest
Deal found 26/12£161
Sat 24/117:50STL - LAS
Nonstop3h 45mSouthwest
Sat 31/106:40LAS - STL
Nonstop3h 05mSouthwest
Deal found 26/12£168
Sat 23/518:49STL - LAS
1 stop6h 30mUnited Airlines
Sat 30/509:46LAS - STL
1 stop6h 07mUnited Airlines
Deal found 26/12£170
Tue 27/114:50STL - LAS
1 stop9h 10mAlaska Airlines
Fri 30/107:00LAS - STL
1 stop13h 46mAlaska Airlines
Deal found 26/12£173
Wed 1/417:25STL - LAS
1 stop8h 06mDelta
Sun 5/409:25LAS - STL
1 stop5h 40mDelta
Deal found 26/12£174
Thu 22/110:55STL - LAS
1 stop6h 45mSouthwest
Mon 26/106:35LAS - STL
Nonstop3h 05mSouthwest
Deal found 27/12£175
Tue 27/106:40STL - LAS
2 stops13h 01mDelta
Sat 31/114:05LAS - STL
1 stop7h 20mDelta
Deal found 26/12£181
Sat 24/106:10STL - LAS
1 stop8h 31mDelta
Tue 3/206:00LAS - STL
1 stop5h 48mDelta
Deal found 26/12£182
Thu 22/110:55STL - LAS
1 stop6h 45mSouthwest
Sat 24/106:40LAS - STL
Nonstop3h 05mSouthwest
Deal found 26/12£183
Tue 27/106:40STL - LAS
2 stops13h 01mDelta
Fri 30/111:00LAS - STL
2 stops10h 25mDelta
Deal found 26/12£188
Tue 20/114:50STL - LAS
1 stop9h 10mAlaska Airlines
Thu 22/115:58LAS - STL
1 stop19h 56mAlaska Airlines
Deal found 27/12£190
Mon 19/111:22STL - LIN
2 stops14h 38mLufthansa
Wed 28/106:10LIN - STL
1 stop14h 45mLufthansa
Deal found 26/12£372

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 28 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 27/1

14:50-22:00

1 stop9h 10m

Las Vegas Harry Reid Intl

Sat 31/1

08:00-13:54

1 stop27h 54m

£173

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 28/1

15:31-20:44

1 stop7h 13m

Las Vegas Harry Reid Intl

Sun 1/2

14:05-23:25

1 stop7h 20m

£174

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 27/3

18:05-22:17

1 stop6h 12m

Las Vegas Harry Reid Intl

Mon 30/3

23:59-08:35

1 stop6h 36m

£174

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 23/4

18:45-23:36

1 stop6h 51m

Las Vegas Harry Reid Intl

Sun 26/4

17:10-00:22

1 stop5h 12m

£174

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 22/2

17:29-23:35

1 stop8h 06m

Las Vegas Harry Reid Intl

Fri 27/2

14:00-23:23

1 stop7h 23m

£174

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Fri 6/3

18:40-23:22

1 stop6h 42m

Las Vegas Harry Reid Intl

Tue 10/3

11:00-00:21

2 stops11h 21m

£181

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 16/2

14:22-17:40

1 stop5h 18m

Las Vegas Harry Reid Intl

Fri 20/2

11:05-23:23

2 stops10h 18m

£181

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 24/3

14:15-22:38

2 stops10h 23m

Las Vegas Harry Reid Intl

Tue 31/3

06:00-13:17

1 stop5h 17m

£188

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 28/3

17:00-22:23

1 stop7h 23m

Las Vegas Harry Reid Intl

Wed 1/4

11:00-00:21

2 stops11h 21m

£195

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Mon 9/2

18:40-11:55

2 stops34h 15m

Milan Linate

Mon 16/2

06:15-22:59

2 stops23h 44m

£375

Flights are sorted by cheapest return flights first.

Deals found on 27/12

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 26 December 2025.

Booking 27 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, September is the cheapest month in which you can book a flight from St. Louis (average of £392). Flying from St. Louis in June will prove the most costly (average of £741). 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. These airlines fly to the following popular destinations: London.

British Airways
British Airways
From £429
Virgin Atlantic
Virgin Atlantic
From £407
Lufthansa
Lufthansa
From £1,040
Air Canada
Air Canada
From £433

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 (686 flights per day), Atlanta (225 flights per day) and Dallas (187 flights per day).

Chicago
Chicago
From £36
Tampa
Tampa
From £288
Dallas/Fort Worth
Dallas/Fort Worth
From £1,550
Frankfurt am Main
Frankfurt am Main
From £584

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

The cheapest city to fly to from St. Louis is Chicago, with prices starting at £36. Explore other affordable destinations below.

Chicago
Chicago
From £36
Detroit
Detroit
From £70
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From £78
Montreal
Montreal
From £277

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, Air Canada, andBritish Airways. 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
677 reviews
Check prices

Crew

8.1

Food

6.9

Comfort

7.3

Entertainment

7.6

Boarding

7.7

Overall

7.5

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
677 reviews
Virgin Atlantic
7.5
Good
677 reviews
Check prices

Crew

8.1

Food

6.9

Comfort

7.3

Entertainment

7.6

Boarding

7.7

Overall

7.5

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
10,562 reviews
Virgin Atlantic
7.5
Good
677 reviews
Check prices

Crew

8.1

Food

6.9

Comfort

7.3

Entertainment

7.6

Boarding

7.7

Overall

7.5

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
7,614 reviews
Virgin Atlantic
7.5
Good
677 reviews
Check prices

Crew

8.1

Food

6.9

Comfort

7.3

Entertainment

7.6

Boarding

7.7

Overall

7.5

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 28 December 2025.

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

    This month, the top selected destinations from St. Louis are Cancún, Denver, 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 £36 to Chicago O'Hare Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for £581 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 (£407), British Airways flights from St. Louis to London Heathrow (£429), and Air Canada flights from St. Louis to London Heathrow (£433).

  • 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 £1,264
    Lambert-St Louis to Frankfurt am Main Airport from £1,748
    Lambert-St Louis to Newark Airport from £2,155
    Lambert-St Louis to Dallas/Fort Worth Airport from £2,711

  • 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 £360 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 September; 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 £449 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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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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