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Cheap flights from St. Louis to Barcelona-El Prat Airport from $312

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Barcelona-El Prat Airport departing on 1/19. 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 St. Louis to Barcelona

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Barcelona that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Barcelona.

Cheap last minute flights

Planning a quick getaway from St. Louis to Barcelona? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Barcelona, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Barcelona

Find recent round-trip train or bus tickets from St. Louis to Barcelona.

All round-trip flight deals to Barcelona

The cheapest plane tickets to Barcelona found on KAYAK recently.
10:26 am - 8:40 amSTL-BCN
15h 14m1 stop
9:45 am - 8:18 pmBCN-STL
16h 33m1 stop
$669Virgin Atlantic
Find Deal
Sat, Mar 8 - Thu, Mar 20
12:52 pm - 8:40 amSTL-BCN
12h 48m1 stop
6:00 am - 4:52 pmBCN-STL
16h 52m2 stops
$688Delta
Find Deal
Sat, Mar 8 - Thu, Mar 20
11:39 am - 7:10 pmSTL-BCN
24h 31m2 stops
8:30 pm - 10:28 pmBCN-STL
31h 58m2 stops
$722British Airways
Find Deal
Sat, Mar 8 - Thu, Mar 20
5:27 pm - 8:55 amSTL-BCN
33h 28m1 stop
7:25 pm - 6:20 pmBCN-STL
29h 55m2 stops
$724British Airways
Find Deal
Sat, Mar 29 - Sat, Apr 5
6:00 am - 9:00 amSTL-BCN
21h 00m1 stop
7:40 pm - 11:15 amBCN-STL
22h 35m1 stop
$1,063American Airlines
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Fri, Mar 21 - Sun, Mar 30
5:33 pm - 8:50 amSTL-BCN
33h 17m2 stops
12:15 pm - 3:47 pmBCN-STL
34h 32m3 stops
$1,083United Airlines
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Sat, Mar 22 - Sun, Mar 30
4:05 pm - 7:50 amSTL-BCN
32h 45m2 stops
12:15 pm - 8:01 pmBCN-STL
14h 46m1 stop
$1,090Air Canada
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Sat, May 3 - Sun, May 11
3:50 pm - 2:05 pmSTL-BCN
15h 15m2 stops
12:15 pm - 8:01 pmBCN-STL
14h 46m1 stop
$1,108Air Canada
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Mon, Apr 28 - Sun, May 11
8:00 am - 7:50 amSTL-BCN
16h 50m2 stops
12:15 pm - 3:38 pmBCN-STL
34h 23m3 stops
$1,137United Airlines
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Sat, May 3 - Sun, May 11
2:34 pm - 9:00 amSTL-BCN
11h 26m1 stop
2:00 pm - 11:17 pmBCN-STL
16h 17m2 stops
$1,542American Airlines
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Fri, Jun 6 - Fri, Jun 13
5:05 pm - 5:35 pmSTL-BCN
41h 30m2 stops
Sun, Jan 19
8:31 pm - 11:59 pmSTL-BCN
44h 28m3 stops
Sun, Jan 19
6:38 pm - 11:59 pmSTL-BCN
47h 21m3 stops
Mon, Mar 17
3:45 pm - 11:05 pmSTL-BCN
24h 20m1 stop
$406Lufthansa
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Sun, Jan 19
5:24 pm - 7:05 pmSTL-BCN
43h 41m2 stops
Sun, Mar 16
6:29 pm - 6:00 pmSTL-BCN
17h 31m2 stops
$491British Airways
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Mon, Mar 17
5:27 pm - 11:30 amSTL-BCN
36h 03m2 stops
$503British Airways
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Sat, Mar 15
10:10 am - 11:55 amSTL-BCN
18h 45m2 stops
$752Delta
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Thu, Apr 24
1:30 pm - 7:50 amSTL-BCN
11h 20m1 stop
$1,057United Airlines
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Fri, Jun 6
9:40 am - 7:50 amSTL-BCN
15h 10m2 stops
$1,062Air Canada
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Thu, Jun 5
6:00 am - 1:05 pmSTL-BCN
24h 05m1 stop
2:40 pm - 11:51 pmBCN-STL
16h 11m1 stop
$1,655
Find Deal
Wed, Dec 25 - Wed, Jan 1
7:30 am - 9:00 amSTL-BCN
18h 30m2 stops
2:40 pm - 11:51 pmBCN-STL
16h 11m1 stop
$1,660American Airlines
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Wed, Dec 25 - Wed, Jan 1
8:35 am - 9:50 amSTL-BCN
18h 15m2 stops
12:15 pm - 10:16 pmBCN-STL
41h 01m2 stops
$1,683United Airlines
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Wed, Dec 25 - Wed, Jan 1
6:29 am - 10:25 amSTL-BCN
20h 56m2 stops
6:00 am - 10:06 pmBCN-STL
23h 06m2 stops
$1,697Delta
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Wed, Dec 25 - Wed, Jan 1
9:53 am - 5:00 pmSTL-BCN
24h 07m2 stops
6:00 am - 10:06 pmBCN-STL
23h 06m2 stops
$1,746Air France
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Wed, Dec 25 - Wed, Jan 1
5:29 pm - 4:10 pmSTL-BCN
39h 41m2 stops
6:40 am - 8:59 pmBCN-STL
21h 19m2 stops
$2,267British Airways
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Mon, Dec 23 - Fri, Jan 3
2:00 pm - 9:00 amSTL-BCN
12h 00m1 stop
6:40 am - 10:19 pmBCN-STL
22h 39m2 stops
$2,451British Airways
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Mon, Dec 23 - Fri, Jan 3
9:53 am - 8:40 amSTL-BCN
15h 47m1 stop
11:10 am - 9:35 pmBCN-STL
17h 25m2 stops
$2,535Delta
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Mon, Dec 23 - Fri, Jan 3
3:50 pm - 9:50 amSTL-BCN
35h 00m2 stops
5:55 am - 7:57 pmBCN-STL
21h 02m3 stops
$3,128Air Canada
Find Deal
Mon, Dec 23 - Fri, Jan 3
3:50 pm - 9:50 amSTL-BCN
35h 00m2 stops
6:50 am - 7:57 pmBCN-STL
20h 07m3 stops
$3,129Air Canada
Find Deal
Mon, Dec 23 - Fri, Jan 3

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

Our best Delta deals on St. Louis to Barcelona-El Prat Airport flight tickets
Delta
Mar 8
STL12:52 pmLambert-St Louis
12h 48m
1 stop
BCN8:40 amBarcelona-El Prat
Mar 20
BCN6:00 amBarcelona-El Prat
16h 52m
2 stops
STL4:52 pmLambert-St Louis
Delta
Apr 28
STL6:45 amLambert-St Louis
17h 15m
2 stops
BCN7:00 amBarcelona-El Prat
May 7
BCN9:00 amBarcelona-El Prat
18h 42m
2 stops
STL8:42 pmLambert-St Louis
Delta
May 26
STL7:20 amLambert-St Louis
16h 40m
2 stops
BCN7:00 amBarcelona-El Prat
Jun 4
BCN11:35 amBarcelona-El Prat
13h 26m
1 stop
STL6:01 pmLambert-St Louis

British Airways flights from St. Louis to Barcelona-El Prat Airport

Our best British Airways deals on St. Louis to Barcelona-El Prat Airport flight tickets
British Airways
Mar 8
STL11:39 amLambert-St Louis
24h 31m
2 stops
BCN7:10 pmBarcelona-El Prat
Mar 20
BCN8:30 pmBarcelona-El Prat
31h 58m
2 stops
STL10:28 pmLambert-St Louis
British Airways
Mar 29
STL5:27 pmLambert-St Louis
33h 28m
1 stop
BCN8:55 amBarcelona-El Prat
Apr 5
BCN7:25 pmBarcelona-El Prat
29h 55m
2 stops
STL6:20 pmLambert-St Louis
British Airways
Mar 29
STL5:27 pmLambert-St Louis
33h 28m
1 stop
BCN8:55 amBarcelona-El Prat
Apr 5
BCN7:25 pmBarcelona-El Prat
29h 55m
2 stops
STL6:20 pmLambert-St Louis

See travel insights to Barcelona from

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

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 Barcelona-El Prat Airport?

The cheapest month to fly to Barcelona-El Prat Airport from St. Louis is in February. Flight prices, which tend to average around $699, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Barcelona-El Prat Airport from St. Louis during January instead. Flights to Barcelona-El Prat Airport in January, while not as cheap as those in February, still average around $749.

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Tuesday when prices can be found for as low as $867. 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 Thursday because tickets tend to average around $1,135. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Flying to Barcelona-El Prat Airport from St. Louis in the morning is the least expensive time of day to depart. momondo users have found prices as low as $905 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,043 on average. Flights to Barcelona-El Prat Airport from St. Louis in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Barcelona-El Prat Airport?

In general, most travelers find the cheapest time to book a flight to Barcelona-El Prat Airport is about 9 days prior to their departure date when tickets on average are $983. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from St. Louis for as low as $640 on momondo.

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

You could potentially save up to 23% on your flight if you consider stops on a St. Louis to Barcelona-El Prat Airport flight.

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

As of December 2024, prices for St. Louis to Barcelona-El Prat Airport flights are approximately 134% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$312

Fastest flight time

11h 00m

Direct flights

None
The best one-way flight to Barcelona-El Prat Airport from St. Louis in the past 72 hours is $312. The best round-trip flight deal from St. Louis to Barcelona-El Prat Airport found on momondo in the last 72 hours is $669.
The fastest flight from St. Louis to Barcelona-El Prat Airport takes 11h 00m
There are no direct flights from St. Louis to Barcelona-El Prat Airport. Popular non-direct route for this connection is Lambert-St Louis Airport - Barcelona-El Prat Airport.

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

    There are 4635.1 mi between Lambert-St Louis and Barcelona-El Prat. Flights usually cover this in 11h 00m, depending on flying conditions and air traffic around both airports.

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

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

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Barcelona-El Prat Airport?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Barcelona-El Prat Airport.

  • What documentation or ID do you need to fly to Barcelona-El Prat Airport?

    The travel and health documents required for your trip to Barcelona-El Prat 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 Barcelona-El Prat Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Barcelona-El Prat Airport?


Best airlines flying from St. Louis to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from St. Louis to Barcelona-El Prat Airport with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $490Free CancellationRating
7.8
1,342 reviews
Search KLM flights
LufthansaPriceFrom $530Free CancellationRating
6.8
7,080 reviews
Search Lufthansa flights
British AirwaysPriceFrom $602Free CancellationRating
6.6
6,815 reviews
Search British Airways flights
DeltaPriceFrom $602Free CancellationRating
8.0
8,597 reviews
Search Delta flights
American AirlinesPriceFrom $619Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air FrancePriceFrom $645Free CancellationRating
7.4
1,501 reviews
Search Air France flights
IberiaPriceFrom $697Free CancellationRating
7.0
2,652 reviews
Search Iberia flights
United AirlinesPriceFrom $697Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
Air CanadaPriceFrom $724Free CancellationRating
7.0
8,413 reviews
Search Air Canada flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Barcelona. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from St. Louis to Barcelona with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential St. Louis to Barcelona flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of St. Louis to Barcelona flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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