Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Missouri to Barcelona from $351

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Barcelona departing on 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Missouri to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:10 pm - 8:00 am
STL
-
BCN
12h 50m
1 stop
Multiple Airlines Logo
6:40 am - 1:25 pm
BCN
-
STL
13h 45m
1 stop
$765Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
British Airways Logo
6:06 am - 10:35 am
STL
-
BCN
21h 29m
1 stop
British Airways Logo
10:45 am - 10:00 pm
BCN
-
STL
18h 15m
1 stop
$768British Airways
Mon, Sep 21 - Tue, Sep 29
Iberia Logo
8:07 pm - 5:35 pm
STL
-
BCN
14h 28m
2 stops
Iberia Logo
6:30 pm - 9:16 am
BCN
-
STL
21h 46m
1 stop
$769Iberia
Mon, Sep 21 - Tue, Sep 29
Iberia Logo
4:29 pm - 10:35 am
STL
-
BCN
11h 06m
1 stop
Iberia Logo
10:45 am - 10:00 pm
BCN
-
STL
18h 15m
1 stop
$773Iberia
Mon, Sep 21 - Tue, Sep 29
Lufthansa Logo
6:49 pm - 7:45 pm
STL
-
BCN
17h 56m
2 stops
Lufthansa Logo
6:40 pm - 1:25 pm
BCN
-
STL
25h 45m
2 stops
$800Lufthansa
Mon, Sep 28 - Mon, Oct 12
Air Canada Logo
5:32 pm - 9:20 am
STL
-
BCN
32h 48m
2 stops
Air Canada Logo
12:15 pm - 8:37 am
BCN
-
STL
27h 22m
2 stops
$805Air Canada
Mon, Sep 21 - Tue, Sep 29
United Airlines Logo
7:55 pm - 8:00 am
MCI
-
BCN
29h 05m
2 stops
United Airlines Logo
12:15 pm - 8:32 pm
BCN
-
MCI
39h 17m
2 stops
$832United Airlines
Fri, Oct 2 - Fri, Oct 9
United Airlines Logo
8:00 am - 12:40 pm
MCI
-
BCN
21h 40m
2 stops
United Airlines Logo
12:15 pm - 8:52 pm
BCN
-
MCI
39h 37m
2 stops
$836United Airlines
Thu, Oct 1 - Fri, Oct 9
Lufthansa Logo
7:55 pm - 6:15 pm
MCI
-
BCN
15h 20m
2 stops
Lufthansa Logo
8:00 am - 7:17 pm
BCN
-
MCI
18h 17m
2 stops
$841Lufthansa
Wed, Sep 2 - Tue, Sep 8
Air Canada Logo
7:45 am - 9:20 am
MCI
-
BCN
18h 35m
2 stops
Air Canada Logo
12:15 pm - 3:52 pm
BCN
-
MCI
34h 37m
2 stops
$858Air Canada
Wed, Aug 19 - Thu, Sep 3

British Airways flights from Missouri to Barcelona-El Prat Airport

Our best British Airways deals on Missouri to Barcelona-El Prat Airport flight tickets
British Airways
Sep 21
STL6:06 amLambert-St Louis
21h 29m
1 stop
BCN10:35 amBarcelona-El Prat
Sep 29
BCN10:45 amBarcelona-El Prat
18h 15m
1 stop
STL10:00 pmLambert-St Louis
$768
British Airways
Sep 28
STL6:06 amLambert-St Louis
21h 29m
1 stop
BCN10:35 amBarcelona-El Prat
Oct 12
BCN5:10 pmBarcelona-El Prat
33h 20m
1 stop
STL7:30 pmLambert-St Louis
$774
British Airways
Sep 28
STL2:45 pmLambert-St Louis
18h 40m
2 stops
BCN4:25 pmBarcelona-El Prat
Oct 12
BCN9:20 pmBarcelona-El Prat
29h 10m
1 stop
STL7:30 pmLambert-St Louis
$793

Iberia flights from Missouri to Barcelona-El Prat Airport

Our best Iberia deals on Missouri to Barcelona-El Prat Airport flight tickets
Iberia
Sep 21
STL8:07 pmLambert-St Louis
14h 28m
2 stops
BCN5:35 pmBarcelona-El Prat
Sep 29
BCN6:30 pmBarcelona-El Prat
21h 46m
1 stop
STL9:16 amLambert-St Louis
$769
Iberia
Sep 21
STL4:29 pmLambert-St Louis
11h 06m
1 stop
BCN10:35 amBarcelona-El Prat
Sep 29
BCN10:45 amBarcelona-El Prat
18h 15m
1 stop
STL10:00 pmLambert-St Louis
$773
Iberia
Sep 30
STL8:07 pmLambert-St Louis
14h 13m
2 stops
BCN5:20 pmBarcelona-El Prat
Oct 7
BCN10:45 amBarcelona-El Prat
15h 45m
1 stop
STL7:30 pmLambert-St Louis
$787

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Barcelona-El Prat Airport 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 April 5, 2026.
Use the filters below to find and compare flights from Missouri to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 9/21

12:10 pm-8:00 am

1 stop12h 50m

Barcelona-El Prat

Tue 9/29

6:40 am-1:25 pm

1 stop13h 45m

$765

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 9/21

6:06 am-10:35 am

1 stop21h 29m

Barcelona-El Prat

Tue 9/29

10:45 am-10:00 pm

1 stop18h 15m

$768

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 9/21

8:07 pm-5:35 pm

2 stops14h 28m

Barcelona-El Prat

Tue 9/29

6:30 pm-9:16 am

1 stop21h 46m

$769

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 9/21

4:29 pm-10:35 am

1 stop11h 06m

Barcelona-El Prat

Tue 9/29

10:45 am-10:00 pm

1 stop18h 15m

$773

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 9/28

6:49 pm-7:45 pm

2 stops17h 56m

Barcelona-El Prat

Mon 10/12

6:40 pm-1:25 pm

2 stops25h 45m

$800

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 9/21

5:32 pm-9:20 am

2 stops32h 48m

Barcelona-El Prat

Tue 9/29

12:15 pm-8:37 am

2 stops27h 22m

$805

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Fri 10/2

7:55 pm-8:00 am

2 stops29h 05m

Barcelona-El Prat

Fri 10/9

12:15 pm-8:32 pm

2 stops39h 17m

$832

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Thu 10/1

8:00 am-12:40 pm

2 stops21h 40m

Barcelona-El Prat

Fri 10/9

12:15 pm-8:52 pm

2 stops39h 37m

$836

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Wed 9/2

7:55 pm-6:15 pm

2 stops15h 20m

Barcelona-El Prat

Tue 9/8

8:00 am-7:17 pm

2 stops18h 17m

$841

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Wed 8/19

7:45 am-9:20 am

2 stops18h 35m

Barcelona-El Prat

Thu 9/3

12:15 pm-3:52 pm

2 stops34h 37m

$858

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Barcelona from

How to get the cheapest flight ticket from Missouri 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 Missouri is in January. Flight prices, which tend to average around $505, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Barcelona-El Prat Airport from Missouri during April instead. Flights to Barcelona-El Prat Airport in April, while not as cheap as those in January, still average around $634.

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

You are more likely to see cheaper flights to Barcelona-El Prat Airport from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around $820 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from Missouri for as low as $715 on momondo.

Can stopping save me money on Missouri to Barcelona-El Prat Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a Missouri to Barcelona-El Prat Airport flight.

Cheap Missouri to Barcelona-El Prat Airport flight deals and tips

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

Fastest flight time

11h 06m

Direct flights

None
The fastest flight from Missouri to Barcelona-El Prat Airport takes 11h 06m
There are no direct flights from Missouri to Barcelona-El Prat Airport. There are no popular flight routes from Missouri to Barcelona-El Prat Airport.
Search flight deals

Frequently asked questions about flying from Missouri to Barcelona-El Prat Airport

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

    Prices for flights from Missouri to Barcelona-El Prat Airport were last updated today.

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

  • How old do you have to be to fly from Missouri 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 Missouri to Barcelona-El Prat Airport.

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

    The travel and health documents you'll need for your trip to Barcelona-El Prat Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Barcelona-El Prat Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Missouri to Barcelona-El Prat Airport with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $433Free CancellationRating
7.7
1,487 reviews
Search KLM flights
British AirwaysPriceFrom $461Free CancellationRating
6.7
7,853 reviews
Search British Airways flights
American AirlinesPriceFrom $485Free CancellationRating
7.1
11,555 reviews
Search American Airlines flights
United AirlinesPriceFrom $490Free CancellationRating
7.4
9,545 reviews
Search United Airlines flights
LufthansaPriceFrom $510Free CancellationRating
6.8
7,892 reviews
Search Lufthansa flights
DeltaPriceFrom $532Free CancellationRating
7.9
8,384 reviews
Search Delta flights
Air FrancePriceFrom $533Free CancellationRating
7.4
1,563 reviews
Search Air France flights
Air CanadaPriceFrom $576Free CancellationRating
7.1
10,894 reviews
Search Air Canada flights
Virgin AtlanticPriceFrom $582Free CancellationRating
7.5
685 reviews
Search Virgin Atlantic flights
IberiaPriceFrom $631Free CancellationRating
7.0
3,163 reviews
Search Iberia flights

Traveling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Lloret de Mar
Sitges
Salou
Tossa de Mar
Castelldefels
Tarragona
El Prat de Llobregat
L'Hospitalet de Llobregat
Calella
Cambrils
Santa Susanna
Cadaques
Badalona
Pals
Pineda de Mar
Roses
Empuriabrava
Palafrugell
Calella de Palafrugell
Malgrat de Mar

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Barcelona?

Finding the right flight to Barcelona from Missouri is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Barcelona quick and easy, saving you time and money.

Can I find flights from Missouri to Barcelona with flexible booking policies on momondo?

Flights from Missouri 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 Missouri to Barcelona?

momondo provides multiple filters to help you find the best flight to Barcelona from Missouri. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Barcelona from Missouri. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Barcelona-El Prat Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 5/5
Tue 5/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Barcelona

Popular cities in Spain

Popular flights according to clicks in the last 7 days on momondo
Flights to Girona Costa Brava Airportfrom $652