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Cheap flights from Barcelona-El Prat Airport to St. Louis from $431

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 6/2. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Barcelona-El Prat Airport to St. Louis.
 Logo
10:45 am - 9:52 pmBCN-STL
18h 07m1 stop
 Logo
2:20 pm - 12:15 pmSTL-BCN
14h 55m1 stop
Thu, May 8 - Mon, May 12
Iberia Logo
10:45 am - 6:33 pmBCN-STL
14h 48m1 stop
Iberia Logo
7:30 pm - 8:35 pmSTL-BCN
18h 05m2 stops
$743Iberia
Find Deal
Thu, May 8 - Mon, May 12
Iberia Logo
8:45 am - 9:52 pmBCN-STL
20h 07m2 stops
Iberia Logo
7:30 pm - 8:35 pmSTL-BCN
18h 05m2 stops
$760Iberia
Find Deal
Thu, May 8 - Mon, May 12
Iberia Logo
10:45 am - 8:23 pmBCN-STL
16h 38m1 stop
Iberia Logo
2:01 pm - 10:10 amSTL-BCN
13h 09m1 stop
$979Iberia
Find Deal
Fri, Jul 18 - Thu, Sep 11
Iberia Logo
10:45 am - 6:23 pmBCN-STL
14h 38m1 stop
Iberia Logo
8:43 am - 10:30 amSTL-BCN
18h 47m1 stop
$982Iberia
Find Deal
Fri, Jul 4 - Sat, Jul 12
Iberia Logo
2:00 pm - 8:24 pmBCN-STL
13h 24m1 stop
Iberia Logo
4:17 pm - 7:15 pmSTL-BCN
19h 58m2 stops
$983Iberia
Find Deal
Fri, Jul 18 - Thu, Sep 11
Air Canada Logo
6:50 am - 3:16 pmBCN-STL
15h 26m2 stops
Air Canada Logo
1:30 pm - 7:50 amSTL-BCN
11h 20m1 stop
$984Air Canada
Find Deal
Fri, Jul 4 - Sat, Jul 12
Delta Logo
6:20 am - 8:30 pmBCN-STL
21h 10m2 stops
Delta Logo
5:40 pm - 3:40 pmSTL-BCN
15h 00m2 stops
$988Delta
Find Deal
Fri, Jul 4 - Sat, Jul 12
Delta Logo
6:20 am - 11:01 pmBCN-STL
23h 41m2 stops
Delta Logo
2:18 pm - 3:40 pmSTL-BCN
18h 22m2 stops
$992Delta
Find Deal
Fri, Jul 18 - Thu, Sep 11
Air Canada Logo
1:15 pm - 7:40 pmBCN-STL
13h 25m1 stop
Air Canada Logo
1:30 pm - 7:50 amSTL-BCN
11h 20m1 stop
$1,080Air Canada
Find Deal
Fri, Jul 4 - Sat, Jul 12

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
Jul 4
BCN6:50 amBarcelona-El Prat
15h 26m
2 stops
STL3:16 pmLambert-St Louis
Jul 12
STL1:30 pmLambert-St Louis
11h 20m
1 stop
BCN7:50 amBarcelona-El Prat
Air Canada
Jul 4
BCN1:15 pmBarcelona-El Prat
13h 25m
1 stop
STL7:40 pmLambert-St Louis
Jul 12
STL1:30 pmLambert-St Louis
11h 20m
1 stop
BCN7:50 amBarcelona-El Prat
Air Canada
Jul 4
BCN1:15 pmBarcelona-El Prat
13h 25m
1 stop
STL7:40 pmLambert-St Louis
Jul 9
STL1:30 pmLambert-St Louis
11h 20m
1 stop
BCN7:50 amBarcelona-El Prat

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

Our best Delta deals on Barcelona-El Prat Airport to St. Louis flight tickets
Delta
Jul 4
BCN6:20 amBarcelona-El Prat
21h 10m
2 stops
STL8:30 pmLambert-St Louis
Jul 12
STL5:40 pmLambert-St Louis
15h 00m
2 stops
BCN3:40 pmBarcelona-El Prat
Delta
Jul 18
BCN6:20 amBarcelona-El Prat
23h 41m
2 stops
STL11:01 pmLambert-St Louis
Sep 11
STL2:18 pmLambert-St Louis
18h 22m
2 stops
BCN3:40 pmBarcelona-El Prat
Delta
Jul 4
BCN6:20 amBarcelona-El Prat
24h 07m
2 stops
STL11:27 pmLambert-St Louis
Jul 12
STL10:45 amLambert-St Louis
15h 15m
2 stops
BCN9:00 amBarcelona-El Prat

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 cheapest month to fly to St. Louis?

In general, October 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 $693. The month of March is another great option to travel to St. Louis, with average flight prices from Barcelona-El Prat Airport averaging around $720.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Saturday when prices can be found for as low as $973. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $973. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Barcelona-El Prat Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $973 when looking at flights departing in the morning. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $973 per ticket.

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

As of April 2025, prices for Barcelona-El Prat Airport to St. Louis flights are approximately 12% cheaper when compared to flights at the same time last year.

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

Best Price Found

$431

Fastest flight time

13h 24m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Barcelona-El Prat Airport in the past 72 hours is $431. The best round-trip flight deal from Barcelona-El Prat Airport to St. Louis found on momondo in the last 72 hours is $704.
The fastest flight from Barcelona-El Prat Airport to St. Louis takes 13h 24m
There are no direct flights from Barcelona-El Prat Airport to St. Louis. Popular non-direct route for this connection is Barcelona-El Prat Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • 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 24m.

  • 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
Florissant
Maryland Heights
Hermann
Fairview Heights
Collinsville
Fenton
Farmington
O'Fallon
St. Peters
Wentzville
Alton
Glencoe
Eureka
Edwardsville
Festus
Clayton
Grafton
Litchfield

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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