What is the cheapest airline that flies from Missouri to Barcelona-El Prat?

Finnair, United Airlines, and British Airways are the most popular carriers operating from Missouri to Barcelona-El Prat

What airlines fly to Barcelona-El Prat Airport?

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to Barcelona-El Prat Airport from Missouri according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 9 different airlines that fly to Barcelona-El Prat Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Barcelona-El Prat Airport?

Flight times vary depending on what airport in Missouri you fly out of and what airport in Barcelona-El Prat Airport you fly into. For example, flying from St. Louis to Barcelona-El Prat Airport takes 11h 01m on average. On the other hand, flying from Kansas City to Barcelona-El Prat Airport takes 12h 27m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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?

As of July 2026, there are 9 operators available to choose from 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.

$293 Cheap Flights from Missouri to Barcelona-El Prat Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Missouri to Barcelona

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:33 am - 1:15 pm

STL

BCN

21h 42m

1 stop

1:35 pm - 2:30 pm

BCN

STL

31h 55m

2 stops

$753Multiple Airlines

Sun, Nov 1 - Wed, Nov 11

7:33 am - 9:35 am

STL

BCN

19h 02m

2 stops

1:35 pm - 12:06 pm

BCN

STL

29h 31m

2 stops

$756Air Canada

Sun, Nov 1 - Wed, Nov 11

6:00 am - 8:35 am

STL

BCN

19h 35m

1 stop

10:30 am - 11:59 am

BCN

STL

32h 29m

1 stop

$764Delta

Mon, Dec 28 - Tue, Jan 12

11:25 am - 1:15 pm

STL

BCN

18h 50m

1 stop

6:50 am - 1:45 pm

BCN

STL

13h 55m

1 stop

$766Multiple Airlines

Sun, Nov 1 - Wed, Nov 11

6:00 am - 8:35 am

STL

BCN

19h 35m

1 stop

6:00 am - 8:49 pm

BCN

STL

21h 49m

2 stops

$769Delta

Mon, Dec 28 - Tue, Jan 12

9:40 am - 1:15 pm

STL

BCN

20h 35m

1 stop

11:00 am - 9:51 pm

BCN

STL

17h 51m

1 stop

$773United Airlines

Sun, Nov 1 - Tue, Nov 10

7:04 pm - 1:15 pm

STL

BCN

11h 11m

1 stop

9:55 am - 3:26 pm

BCN

STL

36h 31m

2 stops

$774United Airlines

Sun, Nov 1 - Tue, Nov 10

3:15 pm - 1:15 pm

STL

BCN

15h 00m

1 stop

9:55 am - 9:51 pm

BCN

STL

18h 56m

2 stops

$776United Airlines

Sun, Nov 1 - Tue, Nov 10

6:00 am - 9:35 am

STL

BCN

20h 35m

2 stops

9:55 am - 3:26 pm

BCN

STL

36h 31m

2 stops

$777Air Canada

Sun, Nov 1 - Tue, Nov 10

1:13 pm - 8:40 am

MCI

BCN

12h 27m

1 stop

10:50 am - 9:05 pm

BCN

MCI

17h 15m

1 stop

$784Virgin Atlantic

Sun, Nov 8 - Wed, Nov 18

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Lufthansa flights from Missouri to Barcelona-El Prat Airport

Our best Lufthansa deals on Missouri to Barcelona-El Prat Airport flight tickets

Lufthansa

Dec 1

MCI6:37 pmKansas City

15h 58m

2 stops

BCN5:35 pmBarcelona-El Prat

Dec 8

BCN6:50 amBarcelona-El Prat

16h 29m

2 stops

MCI4:19 pmKansas City

$797

Lufthansa

Oct 7

STL1:29 pmLambert-St Louis

16h 11m

2 stops

BCN12:40 pmBarcelona-El Prat

Oct 18

BCN6:40 amBarcelona-El Prat

13h 45m

1 stop

STL1:25 pmLambert-St Louis

$811

Lufthansa

Oct 7

STL1:29 pmLambert-St Louis

14h 36m

2 stops

BCN11:05 amBarcelona-El Prat

Oct 17

BCN7:00 pmBarcelona-El Prat

25h 25m

1 stop

STL1:25 pmLambert-St Louis

$837

United Airlines flights from Missouri to Barcelona-El Prat Airport

Our best United Airlines deals on Missouri to Barcelona-El Prat Airport flight tickets

United Airlines

Nov 1

STL9:40 amLambert-St Louis

20h 35m

1 stop

BCN1:15 pmBarcelona-El Prat

Nov 10

BCN11:00 amBarcelona-El Prat

17h 51m

1 stop

STL9:51 pmLambert-St Louis

$773

United Airlines

Nov 1

STL7:04 pmLambert-St Louis

11h 11m

1 stop

BCN1:15 pmBarcelona-El Prat

Nov 10

BCN1:50 pmBarcelona-El Prat

32h 36m

2 stops

STL3:26 pmLambert-St Louis

$774

United Airlines

Nov 1

STL3:15 pmLambert-St Louis

15h 00m

1 stop

BCN1:15 pmBarcelona-El Prat

Nov 10

BCN9:55 amBarcelona-El Prat

18h 56m

2 stops

STL9:51 pmLambert-St Louis

$776

momondo Fare Finder

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

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 11/1

8:33 am-1:15 pm

1 stop21h 42m

Barcelona-El Prat

Wed 11/11

1:35 pm-2:30 pm

2 stops31h 55m

$753

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 11/1

7:33 am-9:35 am

2 stops19h 02m

Barcelona-El Prat

Wed 11/11

1:35 pm-12:06 pm

2 stops29h 31m

$756

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 12/28

6:00 am-8:35 am

1 stop19h 35m

Barcelona-El Prat

Tue 1/12

10:30 am-11:59 am

1 stop32h 29m

$764

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 11/1

11:25 am-1:15 pm

1 stop18h 50m

Barcelona-El Prat

Wed 11/11

6:50 am-1:45 pm

1 stop13h 55m

$766

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 12/28

6:00 am-8:35 am

1 stop19h 35m

Barcelona-El Prat

Tue 1/12

6:00 am-8:49 pm

2 stops21h 49m

$769

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 11/1

9:40 am-1:15 pm

1 stop20h 35m

Barcelona-El Prat

Tue 11/10

11:00 am-9:51 pm

1 stop17h 51m

$773

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 11/1

7:04 pm-1:15 pm

1 stop11h 11m

Barcelona-El Prat

Tue 11/10

9:55 am-3:26 pm

2 stops36h 31m

$774

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 11/1

3:15 pm-1:15 pm

1 stop15h 00m

Barcelona-El Prat

Tue 11/10

9:55 am-9:51 pm

2 stops18h 56m

$776

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Sun 11/1

6:00 am-9:35 am

2 stops20h 35m

Barcelona-El Prat

Tue 11/10

9:55 am-3:26 pm

2 stops36h 31m

$777

Quickest round-trip

Kansas CityBarcelona

MCI - BCN

MCIBCN

Kansas City

Sun 11/8

1:13 pm-8:40 am

1 stop12h 27m

Barcelona-El Prat

Wed 11/18

10:50 am-9:05 pm

1 stop17h 15m

$784

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 December. Flight prices, which tend to average around $414, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of December, then book flights to Barcelona-El Prat Airport from Missouri during March instead. Flights to Barcelona-El Prat Airport in March, while not as cheap as those in December, still average around $431.

How far in advance should I book a flight from Missouri 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 $868 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 $557 on momondo.

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

You could potentially save up to 10% 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 01m
Direct flights	None

The fastest flight from Missouri to Barcelona-El Prat Airport takes 11h 01m

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?
As of July 2026, there are 9 operators available to choose from 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
KLM	PriceFrom $433	Free Cancellation	Rating 7.8 1,538 reviews	Search KLM flights
Delta	PriceFrom $452	Free Cancellation	Rating 7.8 8,463 reviews	Search Delta flights
British Airways	PriceFrom $461	Free Cancellation	Rating 6.7 8,106 reviews	Search British Airways flights
American Airlines	PriceFrom $485	Free Cancellation	Rating 7.1 11,815 reviews	Search American Airlines flights
United Airlines	PriceFrom $490	Free Cancellation	Rating 7.4 9,981 reviews	Search United Airlines flights
Lufthansa	PriceFrom $510	Free Cancellation	Rating 6.8 8,131 reviews	Search Lufthansa flights
Air Canada	PriceFrom $560	Free Cancellation	Rating 7.1 11,332 reviews	Search Air Canada flights
Virgin Atlantic	PriceFrom $582	Free Cancellation	Rating 7.5 693 reviews	Search Virgin Atlantic flights
Iberia	PriceFrom $637	Free Cancellation	Rating 7.0 3,254 reviews	Search Iberia flights

Lloret de Mar

Sitges

Salou

Tarragona

Tossa de Mar

Castelldefels

El Prat de Llobregat

L'Hospitalet de Llobregat

Cambrils

Calella

Cadaques

Badalona

Roses

Santa Susanna

Pals

Empuriabrava

Calella de Palafrugell

Palafrugell

Pineda de Mar

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.

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Flights to Girona Costa Brava Airportfrom $485

Cheap flights from Missouri to Barcelona from $293

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 8/6. 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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Lufthansa flights from Missouri to Barcelona-El Prat Airport

Our best Lufthansa deals on Missouri to Barcelona-El Prat Airport flight tickets

United Airlines flights from Missouri to Barcelona-El Prat Airport

Our best United Airlines deals on Missouri to Barcelona-El Prat Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Missouri to Barcelona-El Prat Airport that are best for you.

See travel insights to Barcelona from

How to get the cheapest flight ticket from Missouri to Barcelona-El Prat Airport

What is the cheapest month to fly to Barcelona-El Prat Airport?

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

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

What is the cheapest airline that flies from Missouri to Barcelona-El Prat?

What airlines fly to Barcelona-El Prat Airport?

How long does it take to fly to Barcelona-El Prat Airport?

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

Direct flights

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

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

Traveling to a place near Barcelona?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Barcelona

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According to popular flight searches on momondo this year

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List of cabin classes available on flights landing in Barcelona. Availability may vary depending on flight origin and airline.

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