How does KAYAK find such low prices on flights from Europe to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Europe to St. Louis.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Europe to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Europe is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Europe to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Europe with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Europe to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$480 CHEAP FLIGHTS from Europe to St. Louis

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Flight Deals

Cheap Flights from Europe to St. Louis

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Europe to St. Louis

Fri, Oct 16 - Tue, Oct 20

6:30 am - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

13h 55m1 stop Frankfurt am Main

3:30 pm - 1:55 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 25m1 stop Frankfurt am Main

$649Lufthansa

Fri, Oct 16 - Tue, Oct 20

6:30 am - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

13h 55m1 stop Frankfurt am Main

12:20 pm - 11:55 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

16h 35m2 stops Newark Munich Franz Josef Strauss

$651Lufthansa

Fri, Oct 16 - Tue, Oct 20

6:30 am - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

13h 55m1 stop Frankfurt am Main

1:09 pm - 11:05 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

14h 56m2 stops Washington, D.C. Dulles Intl Brussels Bruxelles-National

$669Multiple Airlines

Wed, Oct 14 - Wed, Oct 28

8:50 am - 8:57 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

19h 07m2 stops Helsinki-Vantaa Chicago O'Hare Intl

5:27 pm - 5:25 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

17h 58m2 stops Chicago O'Hare Intl London Heathrow

$670American Airlines

Fri, Oct 23 - Mon, Oct 26

7:25 am - 8:57 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

20h 32m2 stops London Heathrow Chicago O'Hare Intl

1:30 pm - 7:20 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

23h 50m2 stops Chicago O'Hare Intl London Heathrow

$671American Airlines

Fri, Oct 16 - Tue, Oct 20

6:30 am - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

13h 55m1 stop Frankfurt am Main

3:30 pm - 6:35 pmSTL Lambert-St Louis-CPH Kastrup Copenhagen

20h 05m1 stop Frankfurt am Main

$690United Airlines

Fri, Oct 16 - Tue, Oct 20

6:30 am - 1:25 pmCPH Kastrup Copenhagen-STL Lambert-St Louis

13h 55m1 stop Frankfurt am Main

1:29 pm - 11:35 amSTL Lambert-St Louis-CPH Kastrup Copenhagen

15h 06m2 stops Chicago O'Hare Intl Frankfurt am Main

$690United Airlines

Wed, Nov 4 - Wed, Nov 11

10:15 am - 9:30 amFRA Frankfurt am Main-STL Lambert-St Louis

30h 15m1 stop Dallas/Fort Worth

5:29 pm - 4:40 pmSTL Lambert-St Louis-FRA Frankfurt am Main

16h 11m2 stops Chicago O'Hare Intl London Heathrow

$743British Airways

Fri, Nov 6 - Sun, Nov 22

10:50 am - 11:58 pmFRA Frankfurt am Main-STL Lambert-St Louis

20h 08m1 stop Charlotte Douglas

5:29 pm - 2:15 pmSTL Lambert-St Louis-FRA Frankfurt am Main

13h 46m2 stops Chicago O'Hare Intl London Heathrow

$743British Airways

Mon, Sep 28 - Sun, Oct 11

9:55 am - 6:41 pmFRA Frankfurt am Main-STL Lambert-St Louis

15h 46m1 stop Montreal Pierre Elliott Trudeau Intl

7:01 pm - 2:05 pmSTL Lambert-St Louis-FRA Frankfurt am Main

12h 04m1 stop Chicago O'Hare Intl

$743Multiple Airlines

Recent last minute flight deals from Europe to St. Louis

Mon, Sep 21 - Thu, Sep 24

9:20 am - 9:29 amFRA Frankfurt am Main-STL Lambert-St Louis

31h 09m1 stop Charlotte Douglas

5:11 pm - 8:45 amSTL Lambert-St Louis-FRA Frankfurt am Main

32h 34m1 stop Dallas/Fort Worth

$868British Airways

Mon, Sep 21 - Thu, Sep 24

10:35 am - 11:43 pmFRA Frankfurt am Main-STL Lambert-St Louis

20h 08m2 stops London Heathrow Dallas/Fort Worth

12:46 pm - 8:45 amSTL Lambert-St Louis-FRA Frankfurt am Main

12h 59m1 stop Dallas/Fort Worth

$876Multiple Airlines

Mon, Sep 21 - Sat, Oct 31

5:40 pm - 2:00 pmLHR London Heathrow-STL Lambert-St Louis

26h 20m1 stop Toronto Pearson Intl

4:05 pm - 6:30 amSTL Lambert-St Louis-LHR London Heathrow

33h 25m1 stop Toronto Pearson Intl

$943Air Canada

Mon, Sep 21 - Thu, Sep 24

9:20 am - 11:43 pmFRA Frankfurt am Main-STL Lambert-St Louis

21h 23m2 stops Charlotte Douglas Dallas/Fort Worth

7:27 am - 10:15 amSTL Lambert-St Louis-FRA Frankfurt am Main

43h 48m2 stops Chicago O'Hare Intl Dublin

$1,060Multiple Airlines

Fri, Sep 18 - Sun, Oct 4

2:15 pm - 11:42 pmFRA Frankfurt am Main-STL Lambert-St Louis

16h 27m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

6:54 pm - 6:00 pmSTL Lambert-St Louis-FRA Frankfurt am Main

16h 06m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol

$1,072KLM

Fri, Sep 18 - Sun, Oct 4

9:55 am - 6:41 pmFRA Frankfurt am Main-STL Lambert-St Louis

15h 46m1 stop Montreal Pierre Elliott Trudeau Intl

1:29 pm - 9:55 amSTL Lambert-St Louis-FRA Frankfurt am Main

13h 26m1 stop Chicago O'Hare Intl

$1,072Multiple Airlines

Fri, Sep 18 - Sun, Oct 4

2:15 pm - 11:42 pmFRA Frankfurt am Main-STL Lambert-St Louis

16h 27m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

10:29 am - 9:50 amSTL Lambert-St Louis-FRA Frankfurt am Main

16h 21m1 stop Detroit Metropolitan Wayne County

$1,073KLM

Fri, Sep 18 - Sun, Oct 4

9:55 am - 6:41 pmFRA Frankfurt am Main-STL Lambert-St Louis

15h 46m1 stop Montreal Pierre Elliott Trudeau Intl

3:30 pm - 7:25 amSTL Lambert-St Louis-FRA Frankfurt am Main

8h 55mnonstop

$1,078Multiple Airlines

Fri, Sep 18 - Sun, Oct 4

10:40 am - 1:25 pmFRA Frankfurt am Main-STL Lambert-St Louis

9h 45mnonstop

3:30 pm - 7:25 amSTL Lambert-St Louis-FRA Frankfurt am Main

8h 55mnonstop

$1,166Lufthansa

Mon, Sep 21 - Thu, Sep 24

10:40 am - 1:25 pmFRA Frankfurt am Main-STL Lambert-St Louis

9h 45mnonstop

1:09 pm - 12:10 pmSTL Lambert-St Louis-FRA Frankfurt am Main

16h 01m1 stop Washington, D.C. Dulles Intl

$2,010Lufthansa

Recent direct flight deals from Europe to St. Louis

Mon, Sep 28 - Sun, Oct 11

10:40 am - 1:25 pmFRA Frankfurt am Main-STL Lambert-St Louis

9h 45mnonstop

3:30 pm - 7:25 amSTL Lambert-St Louis-FRA Frankfurt am Main

8h 55mnonstop

$742Lufthansa

Wed, Oct 14 - Sun, Oct 25

10:40 am - 1:25 pmFRA Frankfurt am Main-STL Lambert-St Louis

9h 45mnonstop

4:40 pm - 7:30 amSTL Lambert-St Louis-FRA Frankfurt am Main

8h 50mnonstop

$770Lufthansa

Fri, Oct 9 - Fri, Oct 23

10:40 am - 1:25 pmFRA Frankfurt am Main-STL Lambert-St Louis

9h 45mnonstop

3:30 pm - 7:25 amSTL Lambert-St Louis-FRA Frankfurt am Main

8h 55mnonstop

$800United Airlines

Mon, Oct 12 - Sun, Oct 25

10:40 am - 1:25 pmFRA Frankfurt am Main-STL Lambert-St Louis

9h 45mnonstop

4:40 pm - 7:30 amSTL Lambert-St Louis-FRA Frankfurt am Main

8h 50mnonstop

$800United Airlines

Fri, Oct 9 - Fri, Oct 23

10:40 am - 1:25 pmFRA Frankfurt am Main-STL Lambert-St Louis

9h 45mnonstop

3:30 pm - 7:25 amSTL Lambert-St Louis-FRA Frankfurt am Main

8h 55mnonstop

$859Air Canada

Mon, Sep 28 - Sun, Oct 11

10:40 am - 1:25 pmFRA Frankfurt am Main-STL Lambert-St Louis

9h 45mnonstop

3:30 pm - 7:25 amSTL Lambert-St Louis-FRA Frankfurt am Main

8h 55mnonstop

$862Air Canada

Wed, Oct 14 - Wed, Oct 21

4:25 pm - 7:30 pmLHR London Heathrow-STL Lambert-St Louis

9h 05mnonstop

9:35 pm - 11:35 amSTL Lambert-St Louis-LHR London Heathrow

8h 00mnonstop

$898British Airways

Wed, Oct 14 - Wed, Oct 21

4:25 pm - 7:30 pmLHR London Heathrow-STL Lambert-St Louis

9h 05mnonstop

9:35 pm - 11:35 amSTL Lambert-St Louis-LHR London Heathrow

8h 00mnonstop

$935British Airways

Wed, Oct 14 - Wed, Oct 21

4:25 pm - 7:30 pmLHR London Heathrow-STL Lambert-St Louis

9h 05mnonstop

9:35 pm - 11:35 amSTL Lambert-St Louis-LHR London Heathrow

8h 00mnonstop

$1,000American Airlines

Fri, Oct 2 - Fri, Oct 16

4:25 pm - 7:30 pmLHR London Heathrow-STL Lambert-St Louis

9h 05mnonstop

9:35 pm - 11:35 amSTL Lambert-St Louis-LHR London Heathrow

8h 00mnonstop

$1,049American Airlines

Useful Info

Low season	February
High season	October
Cheapest flight	$480

Best time to beat the crowds with an average 6% drop in price.

Most popular time to fly and prices are also 7% lower on average.

Flight from London Heathrow Airport to St. Louis

How does KAYAK find such low prices on flights from Europe to St. Louis?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Europe to St. Louis.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Europe to St. Louis?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Europe is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Europe to St. Louis?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Europe with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Europe to St. Louis?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.