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Cheap flights from St. Louis to Barcelona from $603

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 departing on 7/21. 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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Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Barcelona.
Iberia Logo
2:02 pm - 10:10 amSTL-BCN
13h 08m1 stop
Iberia Logo
12:20 pm - 10:27 pmBCN-STL
17h 07m1 stop
$759Iberia
Find Deal
Mon, Aug 25 - Thu, Sep 4
United Airlines Logo
9:17 am - 1:15 pmSTL-BCN
20h 58m1 stop
United Airlines Logo
12:10 pm - 10:40 amBCN-STL
29h 30m2 stops
$768United Airlines
Find Deal
Mon, Aug 25 - Thu, Sep 4
Air Canada Logo
9:15 am - 7:50 amSTL-BCN
15h 35m2 stops
Air Canada Logo
12:10 pm - 3:44 pmBCN-STL
34h 34m2 stops
$770Air Canada
Find Deal
Mon, Aug 25 - Thu, Sep 4
Air Canada Logo
1:30 pm - 7:50 amSTL-BCN
11h 20m1 stop
Air Canada Logo
12:15 pm - 7:58 pmBCN-STL
14h 43m1 stop
$836Air Canada
Find Deal
Sun, May 4 - Sun, May 11
American Airlines Logo
6:25 am - 9:05 amSTL-BCN
19h 40m1 stop
American Airlines Logo
6:30 pm - 9:04 amBCN-STL
21h 34m1 stop
$853American Airlines
Find Deal
Wed, Sep 17 - Sun, Sep 28
British Airways Logo
8:01 pm - 5:40 pmSTL-BCN
14h 39m2 stops
British Airways Logo
10:45 am - 11:49 pmBCN-STL
20h 04m1 stop
$855British Airways
Find Deal
Mon, Aug 25 - Sun, Aug 31
British Airways Logo
8:26 am - 10:30 amSTL-BCN
19h 04m1 stop
British Airways Logo
9:10 pm - 4:08 pmBCN-STL
25h 58m2 stops
$874British Airways
Find Deal
Thu, Sep 25 - Mon, Oct 6
Delta Logo
11:51 am - 10:20 amSTL-BCN
15h 29m2 stops
Delta Logo
9:00 am - 8:35 pmBCN-STL
18h 35m2 stops
$878Delta
Find Deal
Wed, Sep 17 - Sun, Sep 28
American Airlines Logo
7:23 am - 10:30 amSTL-BCN
20h 07m1 stop
American Airlines Logo
1:10 pm - 12:29 amBCN-STL
18h 19m1 stop
$1,021American Airlines
Find Deal
Sun, Jul 20 - Sun, Jul 27
Delta Logo
6:40 am - 6:00 amSTL-BCN
16h 20m2 stops
Delta Logo
6:20 am - 8:37 pmBCN-STL
21h 17m2 stops
$2,106Delta
Find Deal
Tue, Jun 10 - Sun, Jun 22

United Airlines flights from St. Louis to Barcelona

Our best United Airlines deals on St. Louis to Barcelona flight tickets
United Airlines
Aug 25
STL9:17 amLambert-St Louis
20h 58m
1 stop
BCN1:15 pmBarcelona-El Prat
Sep 4
BCN12:10 pmBarcelona-El Prat
29h 30m
2 stops
STL10:40 amLambert-St Louis
United Airlines
May 6
STL9:40 amLambert-St Louis
16h 20m
2 stops
BCN9:00 amBarcelona-El Prat
May 12
BCN12:15 pmBarcelona-El Prat
34h 32m
3 stops
STL3:47 pmLambert-St Louis
United Airlines
Aug 25
STL9:17 amLambert-St Louis
16h 03m
2 stops
BCN8:20 amBarcelona-El Prat
Aug 31
BCN11:15 amBarcelona-El Prat
19h 29m
2 stops
STL11:44 pmLambert-St Louis

American Airlines flights from St. Louis to Barcelona

Our best American Airlines deals on St. Louis to Barcelona flight tickets
American Airlines
Sep 17
STL6:25 amLambert-St Louis
19h 40m
1 stop
BCN9:05 amBarcelona-El Prat
Sep 28
BCN6:30 pmBarcelona-El Prat
21h 34m
1 stop
STL9:04 amLambert-St Louis
American Airlines
Jul 20
STL7:23 amLambert-St Louis
20h 07m
1 stop
BCN10:30 amBarcelona-El Prat
Jul 27
BCN1:10 pmBarcelona-El Prat
18h 19m
1 stop
STL12:29 amLambert-St Louis

See travel insights to Barcelona from

How to get the cheapest flight ticket from St. Louis to Barcelona

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 St. Louis and Barcelona?

What is the cheapest month to fly to Barcelona?

The month of February is, on average, the cheapest month to fly to Barcelona from St. Louis, with most prices found around $684. If you don’t want to visit Barcelona in February, then you should wait until January to fly from St. Louis, when ticket prices are also cheap, with an average price of $761.

What is the cheapest day to depart on your flight to Barcelona?

The cheapest day to depart from St. Louis to Barcelona is on a Tuesday when prices can be found for as low as $867. On the other hand, Thursday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,135.

What is the cheapest time of day to depart on your flight to Barcelona?

In the morning is the cheapest time of day to fly from St. Louis to Barcelona when you can find flight prices for as low as $905. Flying to Barcelona in the morning is an ideal time because this is during off-peak travel hours. 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 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?

You are more likely to see cheaper flights to Barcelona from St. Louis when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around $984 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from St. Louis for as low as $868 on momondo.

Cheap St. Louis to Barcelona flight deals and tips

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

Best Price Found

$603

Fastest flight time

11h 20m

Direct flights

None

Airports in Barcelona

1 airport
The best one-way flight to Barcelona from St. Louis in the past 72 hours is $603. The best round-trip flight deal from St. Louis to Barcelona found on momondo in the last 72 hours is $759.
The fastest flight from St. Louis to Barcelona takes 11h 20m
There are no direct flights from St. Louis to Barcelona. Popular non-direct route for this connection is Lambert-St Louis Airport - Barcelona-El Prat Airport.
There is 1 airport near Barcelona: Barcelona-El Prat (BCN)

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

    The straight-line distance from Lambert-St Louis to Barcelona is 4636.1 mi. In terms of flight time, this usually takes a little over 11h 20m.

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

    Prices for flights from Lambert-St Louis Airport to Barcelona were last updated today.

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

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

    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 Lambert-St Louis Airport to Barcelona.

  • What documentation or ID do you need to fly to Barcelona?

    The necessary travel and health documents for your Barcelona trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.


Best airlines flying from St. Louis to Barcelona

Compare and see reviews for airlines that fly from St. Louis to Barcelona with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $530Free CancellationRating
6.7
6,963 reviews
Search Lufthansa flights
KLMPriceFrom $540Free CancellationRating
7.8
1,323 reviews
Search KLM flights
British AirwaysPriceFrom $602Free CancellationRating
6.6
6,718 reviews
Search British Airways flights
DeltaPriceFrom $602Free CancellationRating
8.0
7,897 reviews
Search Delta flights
American AirlinesPriceFrom $632Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air FrancePriceFrom $645Free CancellationRating
7.4
1,427 reviews
Search Air France flights
IberiaPriceFrom $689Free CancellationRating
7.0
2,657 reviews
Search Iberia flights
United AirlinesPriceFrom $716Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights
Air CanadaPriceFrom $732Free CancellationRating
7.0
9,022 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?

Yes. momondo allows you to filter the results for St. Louis to Barcelona flights to just show those with flexible booking policies.

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?

If you are not ready to book a flight from St. Louis to Barcelona now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Barcelona and let you know when they change.


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Find better results for your trip to Spain

Fly into one of these airports located in Barcelona

Airports listed have a maximum distance of 46.7 mi from Barcelona