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Cheap flights from Barcelona-El Prat Airport to St. Louis from $439

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Barcelona-El Prat Airport to St. Louis departing on 6/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Barcelona-El Prat Airport to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:40 am - 1:25 pm
BCN
-
STL
13h 45m
1 stop
Lufthansa Logo
3:30 pm - 6:15 pm
STL
-
BCN
19h 45m
1 stop
$888Lufthansa
Mon, Jun 8 - Sun, Jun 14
Multiple Airlines Logo
6:40 am - 1:25 pm
BCN
-
STL
13h 45m
1 stop
Multiple Airlines Logo
1:05 pm - 8:00 am
STL
-
BCN
11h 55m
1 stop
$898Multiple Airlines
Wed, Jun 10 - Sun, Jun 14
Air Canada Logo
10:25 am - 8:25 pm
BCN
-
STL
17h 00m
2 stops
Air Canada Logo
1:05 pm - 8:00 am
STL
-
BCN
11h 55m
1 stop
$905Air Canada
Mon, Jun 8 - Sun, Jun 14
Multiple Airlines Logo
10:15 am - 8:25 pm
BCN
-
STL
17h 10m
2 stops
Multiple Airlines Logo
1:05 pm - 8:00 am
STL
-
BCN
11h 55m
1 stop
$906Multiple Airlines
Wed, Jun 10 - Sun, Jun 14
Air Canada Logo
10:25 am - 8:25 pm
BCN
-
STL
17h 00m
2 stops
Air Canada Logo
2:15 pm - 2:05 pm
STL
-
BCN
16h 50m
2 stops
$910Air Canada
Mon, Jun 8 - Sun, Jun 14
Multiple Airlines Logo
11:25 am - 8:07 pm
BCN
-
STL
15h 42m
2 stops
Multiple Airlines Logo
12:10 pm - 8:00 am
STL
-
BCN
12h 50m
1 stop
$913Multiple Airlines
Tue, Aug 11 - Mon, Aug 31
Multiple Airlines Logo
11:25 am - 8:07 pm
BCN
-
STL
15h 42m
2 stops
Multiple Airlines Logo
8:55 am - 8:00 am
STL
-
BCN
16h 05m
2 stops
$931Multiple Airlines
Tue, Aug 11 - Mon, Aug 31
Multiple Airlines Logo
10:15 am - 8:25 pm
BCN
-
STL
17h 10m
2 stops
Multiple Airlines Logo
1:13 pm - 9:20 am
STL
-
BCN
13h 07m
2 stops
$932Multiple Airlines
Wed, Jun 10 - Sun, Jun 14
United Airlines Logo
12:15 pm - 6:41 pm
BCN
-
STL
13h 26m
1 stop
United Airlines Logo
8:50 am - 1:15 pm
STL
-
BCN
21h 25m
1 stop
$935United Airlines
Thu, Sep 17 - Mon, Sep 21
United Airlines Logo
12:15 pm - 6:41 pm
BCN
-
STL
13h 26m
1 stop
United Airlines Logo
7:00 am - 2:20 pm
STL
-
BCN
24h 20m
1 stop
$936United Airlines
Thu, Sep 24 - Mon, Sep 28

Lufthansa flights from Barcelona-El Prat Airport to St. Louis

Our best Lufthansa deals on Barcelona-El Prat Airport to St. Louis flight tickets
Lufthansa
Jun 8
BCN6:40 amBarcelona-El Prat
13h 45m
1 stop
STL1:25 pmLambert-St Louis
Jun 14
STL3:30 pmLambert-St Louis
19h 45m
1 stop
BCN6:15 pmBarcelona-El Prat
$888
Lufthansa
Jun 7
BCN3:15 pmBarcelona-El Prat
13h 15m
1 stop
STL9:30 pmLambert-St Louis
Jun 10
STL12:23 pmLambert-St Louis
13h 37m
1 stop
BCN9:00 amBarcelona-El Prat
$1,421
Lufthansa
Jun 7
BCN3:15 pmBarcelona-El Prat
13h 15m
1 stop
STL9:30 pmLambert-St Louis
Jun 10
STL1:13 pmLambert-St Louis
16h 27m
2 stops
BCN12:40 pmBarcelona-El Prat
$1,443

Air Canada flights from Barcelona-El Prat Airport to St. Louis

Our best Air Canada deals on Barcelona-El Prat Airport to St. Louis flight tickets
Air Canada
Jun 8
BCN10:25 amBarcelona-El Prat
17h 00m
2 stops
STL8:25 pmLambert-St Louis
Jun 14
STL1:05 pmLambert-St Louis
11h 55m
1 stop
BCN8:00 amBarcelona-El Prat
$905
Air Canada
Jun 8
BCN10:25 amBarcelona-El Prat
17h 00m
2 stops
STL8:25 pmLambert-St Louis
Jun 14
STL2:15 pmLambert-St Louis
16h 50m
2 stops
BCN2:05 pmBarcelona-El Prat
$910
Air Canada
Sep 17
BCN12:15 pmBarcelona-El Prat
14h 45m
2 stops
STL8:00 pmLambert-St Louis
Sep 21
STL12:10 pmLambert-St Louis
14h 20m
2 stops
BCN9:30 amBarcelona-El Prat
$974

momondo Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat Airport to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 25, 2026.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Mon 6/8

6:40 am-1:25 pm

1 stop13h 45m

Lambert-St Louis

Sun 6/14

3:30 pm-6:15 pm

1 stop19h 45m

$888
Quickest round-trip

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 6/10

6:40 am-1:25 pm

1 stop13h 45m

Lambert-St Louis

Sun 6/14

1:05 pm-8:00 am

1 stop11h 55m

$898

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Mon 6/8

10:25 am-8:25 pm

2 stops17h 00m

Lambert-St Louis

Sun 6/14

1:05 pm-8:00 am

1 stop11h 55m

$905

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 6/10

10:15 am-8:25 pm

2 stops17h 10m

Lambert-St Louis

Sun 6/14

1:05 pm-8:00 am

1 stop11h 55m

$906

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Mon 6/8

10:25 am-8:25 pm

2 stops17h 00m

Lambert-St Louis

Sun 6/14

2:15 pm-2:05 pm

2 stops16h 50m

$910

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Tue 8/11

11:25 am-8:07 pm

2 stops15h 42m

Lambert-St Louis

Mon 8/31

12:10 pm-8:00 am

1 stop12h 50m

$913

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Tue 8/11

11:25 am-8:07 pm

2 stops15h 42m

Lambert-St Louis

Mon 8/31

8:55 am-8:00 am

2 stops16h 05m

$931

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Wed 6/10

10:15 am-8:25 pm

2 stops17h 10m

Lambert-St Louis

Sun 6/14

1:13 pm-9:20 am

2 stops13h 07m

$932

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 9/17

12:15 pm-6:41 pm

1 stop13h 26m

Lambert-St Louis

Mon 9/21

8:50 am-1:15 pm

1 stop21h 25m

$935

BarcelonaSt. Louis

BCN - STL

BCNSTL

Barcelona-El Prat

Thu 9/24

12:15 pm-6:41 pm

1 stop13h 26m

Lambert-St Louis

Mon 9/28

7:00 am-2:20 pm

1 stop24h 20m

$936

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Barcelona-El Prat Airport to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Barcelona-El Prat Airport and St. Louis?

What is the cheapest month to fly to St. Louis?

In general, December is the cheapest month to fly from Barcelona-El Prat Airport to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of November is another great option to travel to St. Louis, with average flight prices from Barcelona-El Prat Airport averaging around $797.

Can stopping save me money on Barcelona-El Prat Airport to St. Louis flights?

You could potentially save up to 26% on your flight if you consider stops on a Barcelona-El Prat Airport to St. Louis flight.

How have Barcelona-El Prat Airport to St. Louis flight prices changed over time?

When to book flights from Barcelona-El Prat Airport to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Barcelona-El Prat Airport to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Barcelona-El Prat Airport to St. Louis (BCN to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Barcelona-El Prat Airport to St. Louis

Fastest flight time

13h 26m

Direct flights

None
The fastest flight from Barcelona-El Prat Airport to St. Louis takes 13h 26m
There are no direct flights from Barcelona-El Prat Airport to St. Louis. There are no popular flight routes from Barcelona-El Prat Airport to St. Louis.
Search flight deals

Frequently asked questions about flying from Barcelona-El Prat Airport to St. Louis

  • How far is Barcelona-El Prat to Lambert-St Louis by plane?

    The distance between Barcelona-El Prat and Lambert-St Louis is about 4635.1 mi. In terms of flight time, this usually takes a little over 13h 26m.

  • When did momondo last update prices for flights from Barcelona-El Prat Airport to Lambert-St Louis Airport?

    Prices for flights from Barcelona-El Prat Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Barcelona-El Prat Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Barcelona-El Prat Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Festus
Eureka
Litchfield
Clayton
Edwardsville
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Barcelona to St. Louis?

It is quick and easy to find Barcelona to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

Can I find flights from Barcelona to St. Louis with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. Louis from Barcelona with this policy.

How can momondo help me find flights from Barcelona to St. Louis?

momondo helps you find the best flight between Barcelona and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Barcelona to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Barcelona and alert you when they change.

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