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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 11/6. 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
4 May — 11 May1
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 29 April 2025.

Cheapest round-trip flight

£431

Cheapest airline

Virgin Atlantic

Good round-trip deal

£500 or less

Good one-way deal

£139 or less
The cheapest round-trip flight from Lambert-St Louis is currently to Chicago O'Hare Intl.
On average, Virgin Atlantic currently has the cheapest one-way flight from Lambert-St Louis (avg. price of £581).
Price to beat on a round-trip flight from Lambert-St Louis.
Price to beat on a one-way flight from Lambert-St Louis.

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 29 April 2025.

Tue 14/1013:30STL - LHR
2 stops20h 30mScandinavian Airlines
Wed 22/1007:05LHR - STL
3 stops22h 34mScandinavian Airlines
Deal found 28/4£530
Wed 20/813:15STL - EDI
1 stop11h 55mBritish Airways
Thu 4/911:35EDI - STL
1 stop14h 46mBritish Airways
Deal found 28/4£543
Wed 20/817:22STL - EDI
1 stop12h 18mUnited Airlines
Thu 4/909:00EDI - STL
2 stops31h 40mUnited Airlines
Deal found 27/4£552
Wed 20/809:15STL - EDI
1 stop16h 05mAir Canada
Thu 4/909:00EDI - STL
2 stops35h 19mAir Canada
Deal found 28/4£554
Wed 20/811:20STL - EDI
2 stops14h 45mMultiple Airlines
Thu 4/909:00EDI - STL
2 stops33h 25mMultiple Airlines
Deal found 27/4£556
Wed 20/813:30STL - LHR
1 stop14h 30mMultiple Airlines
Wed 27/810:30LHR - STL
2 stops15h 30mMultiple Airlines
Deal found 29/4£559
Mon 25/813:30STL - LGW
2 stops14h 30mDelta
Thu 4/912:00LGW - STL
2 stops17h 01mDelta
Deal found 28/4£561
Sat 9/813:30STL - MAN
2 stops38h 50mMultiple Airlines
Wed 20/818:40MAN - STL
2 stops31h 00mMultiple Airlines
Deal found 28/4£562
Wed 22/1006:45STL - EDI
2 stops20h 35mDelta
Wed 5/1111:45EDI - STL
2 stops17h 54mDelta
Deal found 28/4£563
Wed 20/813:15STL - LHR
1 stop12h 40mBritish Airways
Wed 27/815:10LHR - STL
1 stop14h 04mBritish Airways
Deal found 29/4£566
Wed 20/813:30STL - LHR
1 stop11h 00mAir Canada
Wed 27/809:30LHR - STL
2 stops35h 03mAir Canada
Deal found 28/4£569
Sat 11/1016:05STL - LHR
1 stop32h 30mUnited Airlines
Tue 21/1014:05LHR - STL
2 stops26h 29mUnited Airlines
Deal found 28/4£574

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

Fly to

Heathrow

Route

Depart

Return

Price

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 14/10

13:30-16:00

2 stops20h 30m

London Heathrow

Wed 22/10

07:05-23:39

3 stops22h 34m

£530

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Wed 20/8

13:15-07:10

1 stop11h 55m

Edinburgh Turnhouse

Thu 4/9

11:35-20:21

1 stop14h 46m

£543

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Wed 20/8

17:22-11:40

1 stop12h 18m

Edinburgh Turnhouse

Thu 4/9

09:00-10:40

2 stops31h 40m

£552

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Wed 20/8

09:15-07:20

1 stop16h 05m

Edinburgh Turnhouse

Thu 4/9

09:00-14:19

2 stops35h 19m

£554

St. LouisEdinburgh

STL - EDI

STLEDI

Lambert-St Louis

Wed 20/8

11:20-08:05

2 stops14h 45m

Edinburgh Turnhouse

Thu 4/9

09:00-12:25

2 stops33h 25m

£556

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 20/8

13:30-10:00

1 stop14h 30m

London Heathrow

Wed 27/8

10:30-20:00

2 stops15h 30m

£559

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Mon 25/8

13:30-10:00

2 stops14h 30m

London Gatwick

Thu 4/9

12:00-23:01

2 stops17h 01m

£561

St. LouisManchester

STL - MAN

STLMAN

Lambert-St Louis

Sat 9/8

13:30-10:20

2 stops38h 50m

Manchester

Wed 20/8

18:40-19:40

2 stops31h 00m

£562

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 20/8

13:15-07:55

1 stop12h 40m

London Heathrow

Wed 27/8

15:10-23:14

1 stop14h 04m

£566

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 20/8

13:30-06:30

1 stop11h 00m

London Heathrow

Wed 27/8

09:30-14:33

2 stops35h 03m

£569

Flights are sorted by cheapest return flights first.

Deals found on 27/4

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 25 April 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 £457). Flying from St. Louis in June will prove the most costly (average of £679). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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.

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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.
8.0
Very Good

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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.

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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.

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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.

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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.

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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

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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 29 April 2025.
  • What are the most popular destinations to fly to from St. Louis?

    This month, the top selected destinations from St. Louis are Atlanta, Boston, Cancún. 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 £91 to Atlanta (prices may vary depending on the airline and departure time). On average, users have booked flights for £510 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, Air Canada, and British Airways have the cheapest prices from St. Louis. Virgin Atlantic flights from St. Louis to London Heathrow (£496), Air Canada flights from St. Louis to London Heathrow (£500), and British Airways flights from St. Louis to Edinburgh Turnhouse (£502).

  • 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 £1,278
    Lambert-St Louis to Chicago O'Hare Intl Airport from £1,296
    Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl Airport from £2,018
    Lambert-St Louis to Newark Airport from £2,178

  • 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 £4,888 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 £530 round trip
    Travel from St. Louis to Belfast from £705 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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