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£137+ Cheap flights from St. Louis

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/5. 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
30 Mar — 6 Apr1
1 adult

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 25 March 2025.

Cheapest airline

British Airways

Good round-trip deal

£544 or less

Good one-way deal

£69 or less
On average, British Airways currently has the cheapest one-way flight from Lambert-St Louis (avg. price of £851).
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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

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 25 March 2025.

Mon 21/417:27STL - GLA
2 stops16h 58mBritish Airways
Mon 28/420:50GLA - STL
2 stops27h 12mBritish Airways
Deal found 24/3£509
Tue 6/513:45STL - MAN
2 stops17h 25mAmerican Airlines
Tue 20/508:10MAN - STL
2 stops15h 57mAmerican Airlines
Deal found 24/3£527
Mon 28/418:00STL - LHR
1 stop10h 30mIberia
Wed 7/512:15LHR - STL
1 stop12h 18mIberia
Deal found 24/3£531
Thu 8/513:30STL - LHR
1 stop14h 30mMultiple Airlines
Thu 15/510:30LHR - STL
2 stops15h 28mMultiple Airlines
Deal found 24/3£532
Tue 13/513:38STL - LHR
1 stop16h 37mBritish Airways
Tue 20/517:20LHR - STL
2 stops31h 13mBritish Airways
Deal found 24/3£534
Wed 7/510:05STL - LHR
1 stop19h 05mDelta
Wed 21/509:55LHR - STL
2 stops16h 44mDelta
Deal found 24/3£535
Tue 6/516:11STL - MAN
1 stop10h 24mVirgin Atlantic
Tue 20/505:55MAN - STL
2 stops20h 44mVirgin Atlantic
Deal found 24/3£535
Mon 28/409:39STL - LHR
2 stops15h 16mUnited Airlines
Wed 7/508:40LHR - STL
2 stops16h 55mUnited Airlines
Deal found 24/3£537
Thu 8/507:30STL - MAN
2 stops18h 35mMultiple Airlines
Thu 15/508:50MAN - STL
2 stops17h 08mMultiple Airlines
Deal found 24/3£539
Thu 8/513:30STL - BHX
2 stops21h 45mAir Canada
Wed 21/505:55BHX - STL
2 stops20h 03mAir Canada
Deal found 24/3£541
Thu 15/507:30STL - LHR
1 stop17h 05mAir Canada
Thu 22/508:40LHR - STL
2 stops17h 18mAir Canada
Deal found 24/3£544
Thu 8/513:30STL - BHX
2 stops16h 45mMultiple Airlines
Wed 21/505:55BHX - STL
1 stop13h 35mMultiple Airlines
Deal found 24/3£551

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

Fly to

Heathrow

Route

Depart

Return

Price

St. LouisGlasgow

STL - GLA

STLGLA

Lambert-St Louis

Mon 21/4

17:27-16:25

2 stops16h 58m

Glasgow Intl

Mon 28/4

20:50-18:02

2 stops27h 12m

£509

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

Tue 6/5

13:45-13:10

2 stops17h 25m

Manchester

Tue 20/5

08:10-18:07

2 stops15h 57m

£527

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 28/4

18:00-10:30

1 stop10h 30m

London Heathrow

Wed 7/5

12:15-18:33

1 stop12h 18m

£531

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Thu 8/5

13:30-10:00

1 stop14h 30m

London Heathrow

Thu 15/5

10:30-19:58

2 stops15h 28m

£532

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 13/5

13:38-12:15

1 stop16h 37m

London Heathrow

Tue 20/5

17:20-18:33

2 stops31h 13m

£534

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 7/5

10:05-11:10

1 stop19h 05m

London Heathrow

Wed 21/5

09:55-20:39

2 stops16h 44m

£535

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

Tue 6/5

16:11-08:35

1 stop10h 24m

Manchester

Tue 20/5

05:55-20:39

2 stops20h 44m

£535

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 28/4

09:39-06:55

2 stops15h 16m

London Heathrow

Wed 7/5

08:40-19:35

2 stops16h 55m

£537

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

Thu 8/5

07:30-08:05

2 stops18h 35m

Manchester

Thu 15/5

08:50-19:58

2 stops17h 08m

£539

St. LouisBirmingham

STL - BHX

STLBHX

Lambert-St Louis

Thu 8/5

13:30-17:15

2 stops21h 45m

Birmingham

Wed 21/5

05:55-19:58

2 stops20h 03m

£541

Flights are sorted by cheapest return flights first.

Deals found on 23/3

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 21 March 2025.

Booking 56 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, October is the cheapest month in which you can book a flight from St. Louis (average of £466). Flying from St. Louis in June will prove the most costly (average of £696). 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, KLM, American Airlines. These airlines fly to the following popular destinations: London.

Virgin Atlantic

Virgin Atlantic

From £662

British Airways

British Airways

From £659

KLM

KLM

From £712

American Airlines

American Airlines

From £785

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 (773 flights per day), Detroit (238 flights per day) and New York (223 flights per day).

Chicago

Chicago

From £89

Atlanta Hartsfield-Jackson

Atlanta Hartsfield-Jackson

From £666

Minneapolis St Paul

Minneapolis St Paul

From £703

Montreal

Montreal

From £697

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 £69. Explore other affordable destinations below.

Chicago

Chicago

From £89

Los Angeles

Los Angeles

From £232

San Francisco

San Francisco

From £559

Atlanta Hartsfield-Jackson

Atlanta Hartsfield-Jackson

From £666

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.
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,890 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,423 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
634 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

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Direct flights from Missouri

Book a direct flight from one of these other cities located in Missouri.
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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 25 March 2025.

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

    This month, the top selected destinations from St. Louis are Cancún, Atlanta, Boston. Throughout the year, Cancún, Boston, 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 £69 to Chicago O'Hare Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for £500 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 British Airways, Virgin Atlantic, and KLM have the cheapest prices from St. Louis. British Airways flights from St. Louis to London Heathrow (£509), Virgin Atlantic flights from St. Louis to London Heathrow (£512), and KLM flights from St. Louis to Accra Kotoka (£550).

  • 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 Atlanta from £1,290
    Lambert-St Louis to Washington, D.C. Dulles Intl Airport from £1,321
    Lambert-St Louis to Chicago O'Hare Intl Airport from £1,339
    Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl Airport from £2,085

  • 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 £5,051 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 October; 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 £518 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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