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£89+ 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 18/1. 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 Dec — 21 Dec1
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 14 November 2025.

Cheapest airline

British Airways

Good round-trip deal

£90 or less

Good one-way deal

£75 or less
On average, British Airways currently has the cheapest one-way flight from Lambert-St Louis (avg. price of £740).
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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 14 November 2025.

Wed 14/115:50STL - LIN
1 stop13h 55mLufthansa
Wed 21/106:10LIN - STL
1 stop14h 45mLufthansa
Deal found 13/11£381
Wed 11/215:11STL - LIN
2 stops13h 44mUnited Airlines
Mon 16/206:15LIN - STL
2 stops23h 44mUnited Airlines
Deal found 13/11£382
Thu 15/112:44STL - LIN
2 stops14h 21mLufthansa
Wed 21/106:10LIN - STL
1 stop14h 45mLufthansa
Deal found 13/11£384
Wed 11/215:11STL - LIN
2 stops13h 44mMultiple Airlines
Mon 16/219:40LIN - STL
2 stops33h 20mMultiple Airlines
Deal found 12/11£385
Thu 15/112:44STL - LIN
2 stops14h 21mLufthansa
Fri 23/106:10LIN - STL
2 stops16h 53mLufthansa
Deal found 13/11£391
Wed 14/115:50STL - LIN
1 stop13h 55mLufthansa
Thu 22/117:50LIN - STL
1 stop27h 05mLufthansa
Deal found 13/11£396
Thu 15/112:44STL - LIN
2 stops14h 21mLufthansa
Thu 22/117:50LIN - STL
1 stop27h 05mLufthansa
Deal found 13/11£399
Fri 27/316:50STL - LIN
1 stop19h 20mLufthansa
Tue 31/306:55LIN - STL
2 stops19h 53mLufthansa
Deal found 11/11£425
Wed 22/414:18STL - LIN
2 stops16h 37mDelta
Wed 29/406:40LIN - STL
2 stops20h 51mDelta
Deal found 13/11£433
Mon 8/1211:40STL - LHR
2 stops22h 20mScandinavian Airlines
Mon 15/1206:40LHR - STL
2 stops31h 44mScandinavian Airlines
Deal found 11/11£445
Thu 11/1212:04STL - LGW
2 stops15h 56mMultiple Airlines
Sun 11/114:10LGW - STL
1 stop23h 40mMultiple Airlines
Deal found 12/11£446
Mon 8/1215:30STL - LGW
1 stop12h 30mMultiple Airlines
Fri 9/114:00LGW - STL
1 stop14h 33mMultiple Airlines
Deal found 11/11£448

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

Fly to

Heathrow

Route

Depart

Return

Price

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Wed 14/1

15:50-10:05

1 stop11h 15m

Milan Linate

Fri 23/1

06:10-13:55

1 stop14h 45m

£381

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Thu 15/1

12:44-10:05

2 stops14h 21m

Milan Linate

Wed 21/1

06:10-13:55

1 stop14h 45m

£384

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Wed 11/2

15:11-11:55

2 stops13h 44m

Milan Linate

Mon 16/2

19:40-22:00

2 stops33h 20m

£385

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Wed 14/1

15:50-16:55

1 stop18h 05m

Milan Linate

Wed 21/1

06:10-16:03

2 stops16h 53m

£388

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Fri 16/1

15:50-18:10

1 stop19h 20m

Milan Linate

Fri 23/1

06:10-16:03

2 stops16h 53m

£388

St. LouisMilan

STL - LIN

STLLIN

Lambert-St Louis

Fri 27/3

16:50-18:10

1 stop19h 20m

Milan Linate

Tue 31/3

06:55-19:48

2 stops19h 53m

£425

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Thu 11/12

12:04-10:00

2 stops15h 56m

London Gatwick

Sun 11/1

14:10-07:50

1 stop23h 40m

£446

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Mon 8/12

10:47-10:00

2 stops17h 13m

London Gatwick

Fri 9/1

14:00-22:33

1 stop14h 33m

£449

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Wed 10/12

19:43-10:00

2 stops32h 17m

London Gatwick

Thu 8/1

14:00-22:33

1 stop14h 33m

£473

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 24/11

15:14-07:55

1 stop10h 41m

London Heathrow

Wed 3/12

06:30-13:55

1 stop13h 25m

£476

Flights are sorted by cheapest return flights first.

Deals found on 13/11

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 7 November 2025.

Booking 34 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 £403). Flying from St. Louis in June will prove the most costly (average of £761). 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, Air Canada. These airlines fly to the following popular destinations: London.

Virgin Atlantic
Virgin Atlantic
From £383
British Airways
British Airways
From £440
KLM
KLM
From £514
Air Canada
Air Canada
From £444

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 (869 flights per day), New York (229 flights per day) and Atlanta (223 flights per day).

Chicago
Chicago
From £256
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From £483
Minneapolis St Paul
Minneapolis St Paul
From £90
San Francisco
San Francisco
From £155

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

The cheapest city to fly to from St. Louis is Detroit, with prices starting at £72. Explore other affordable destinations below.

Detroit
Detroit
From £72
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From £75
Minneapolis St Paul
Minneapolis St Paul
From £90
Los Angeles
Los Angeles
From £131

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 KLM, Virgin Atlantic, 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.
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Air Canada
7.1
Good
10,450 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,521 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Overall

7.7

Crew

8.4

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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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 14 November 2025.

  • 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 £72 to Detroit Metropolitan Wayne County Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for £330 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 (£383), British Airways flights from St. Louis to London Heathrow (£440), and Air Canada flights from St. Louis to London Heathrow (£444).

  • 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 £1,298
    Lambert-St Louis to Frankfurt am Main Airport from £1,794
    Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl Airport from £2,049
    Lambert-St Louis to Newark Airport from £2,212

  • 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 £369 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 £379 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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