What airlines fly to Barcelona-El Prat Airport?

United Airlines, Delta and Iberia are the top three most popular airlines that fly to Barcelona-El Prat Airport from Idaho according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 4 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 Idaho you fly out of and what airport in Barcelona-El Prat Airport you fly into. For example, flying from Boise to Barcelona-El Prat Airport takes 17h 48m on average. On the other hand, flying from Idaho Falls to Barcelona-El Prat Airport takes 18h 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.

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

American Airlines, United Airlines, and Lufthansa are the most popular carriers operating from Idaho to Barcelona-El Prat

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

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

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

The number of operators available for flights from Idaho to Barcelona-El Prat Airport is 4 as of September 2026.

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

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

The necessary travel and health documents for your Barcelona-El Prat Airport 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.

$408 Cheap Flights from Idaho to Barcelona-El Prat Airport in 2026

Discover deals from 900+ travel sites with momondo.

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7:05 pm - 8:00 amBOI Boise Air Term. Gowen Fld-BCN Barcelona-El Prat

28h 55m2 stops San Francisco Montreal Pierre Elliott Trudeau Intl

3:15 pm - 9:34 amBCN Barcelona-El Prat-BOI Boise Air Term. Gowen Fld

26h 19m2 stops Chicago O'Hare Intl Denver Intl

$581Air Canada

Mon, Sep 21 - Wed, Oct 7

3:21 pm - 4:25 pmBOI Boise Air Term. Gowen Fld-BCN Barcelona-El Prat

17h 04m2 stops Chicago O'Hare Intl London Heathrow

10:45 am - 10:39 pmBCN Barcelona-El Prat-BOI Boise Air Term. Gowen Fld

19h 54m1 stop Dallas/Fort Worth

$585American Airlines

Mon, Sep 21 - Wed, Oct 7

7:02 am - 10:10 amBOI Boise Air Term. Gowen Fld-BCN Barcelona-El Prat

19h 08m1 stop Dallas/Fort Worth

10:45 am - 10:39 pmBCN Barcelona-El Prat-BOI Boise Air Term. Gowen Fld

19h 54m1 stop Dallas/Fort Worth

$586Iberia

Mon, Sep 21 - Wed, Oct 7

1:52 pm - 3:40 pmBOI Boise Air Term. Gowen Fld-BCN Barcelona-El Prat

17h 48m2 stops Phoenix Sky Harbor Intl London Heathrow

12:20 pm - 11:59 pmBCN Barcelona-El Prat-BOI Boise Air Term. Gowen Fld

19h 39m2 stops Chicago O'Hare Intl Seattle/Tacoma Intl

$597Multiple Airlines

Tue, Sep 22 - Tue, Oct 6

5:44 pm - 9:00 amBOI Boise Air Term. Gowen Fld-BCN Barcelona-El Prat

31h 16m2 stops Denver Intl Washington, D.C. Dulles Intl

10:30 am - 11:31 amBCN Barcelona-El Prat-BOI Boise Air Term. Gowen Fld

33h 01m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$600United Airlines

Sat, Nov 7 - Wed, Nov 18

5:44 pm - 9:00 amBOI Boise Air Term. Gowen Fld-BCN Barcelona-El Prat

31h 16m2 stops Denver Intl Washington, D.C. Dulles Intl

10:30 am - 10:59 pmBCN Barcelona-El Prat-BOI Boise Air Term. Gowen Fld

20h 29m2 stops Washington, D.C. Dulles Intl Denver Intl

$600United Airlines

Sat, Nov 7 - Wed, Nov 18

5:00 am - 8:40 amGEG Spokane-BCN Barcelona-El Prat

18h 40m2 stops Seattle/Tacoma Intl Atlanta Hartsfield-Jackson

10:50 am - 10:40 amBCN Barcelona-El Prat-GEG Spokane

32h 50m2 stops Atlanta Hartsfield-Jackson Seattle/Tacoma Intl

$600Delta

Tue, Nov 17 - Thu, Dec 3

7:00 am - 5:30 pmBOI Boise Air Term. Gowen Fld-BCN Barcelona-El Prat

26h 30m2 stops Dallas/Fort Worth London Heathrow

7:05 pm - 12:45 pmBCN Barcelona-El Prat-BOI Boise Air Term. Gowen Fld

49h 40m2 stops London Heathrow Dallas/Fort Worth

$602Iberia

Tue, Jan 26 - Tue, Feb 2

5:00 am - 8:00 amBOI Boise Air Term. Gowen Fld-BCN Barcelona-El Prat

19h 00m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

1:15 pm - 9:34 amBCN Barcelona-El Prat-BOI Boise Air Term. Gowen Fld

28h 19m2 stops Toronto Pearson Intl Denver Intl

$607Air Canada

Sun, Oct 11 - Wed, Oct 21

5:15 am - 8:40 amBOI Boise Air Term. Gowen Fld-BCN Barcelona-El Prat

19h 25m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

6:00 am - 5:00 pmBCN Barcelona-El Prat-BOI Boise Air Term. Gowen Fld

19h 00m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$627Delta

Wed, Nov 11 - Thu, Nov 26

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United Airlines flights from Idaho to Barcelona-El Prat Airport

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

United Airlines

Nov 7

BOI5:44 pmBoise Air Term. Gowen Fld

31h 16m

2 stops

BCN9:00 amBarcelona-El Prat

Nov 18

BCN10:30 amBarcelona-El Prat

20h 29m

2 stops

BOI10:59 pmBoise Air Term. Gowen Fld

$600

United Airlines

Nov 11

BOI12:31 pmBoise Air Term. Gowen Fld

16h 44m

1 stop

BCN1:15 pmBarcelona-El Prat

Nov 26

BCN3:10 pmBarcelona-El Prat

28h 21m

1 stop

BOI11:31 amBoise Air Term. Gowen Fld

$602

United Airlines

Nov 7

BOI5:44 pmBoise Air Term. Gowen Fld

31h 16m

2 stops

BCN9:00 amBarcelona-El Prat

Nov 18

BCN3:10 pmBarcelona-El Prat

28h 21m

1 stop

BOI11:31 amBoise Air Term. Gowen Fld

$607

Lufthansa flights from Idaho to Barcelona-El Prat Airport

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

Lufthansa

Nov 11

BOI12:31 pmBoise Air Term. Gowen Fld

16h 44m

1 stop

BCN1:15 pmBarcelona-El Prat

Nov 26

BCN3:10 pmBarcelona-El Prat

28h 21m

1 stop

BOI11:31 amBoise Air Term. Gowen Fld

$621

Lufthansa

Nov 11

BOI6:30 amBoise Air Term. Gowen Fld

18h 30m

2 stops

BCN9:00 amBarcelona-El Prat

Nov 26

BCN3:10 pmBarcelona-El Prat

28h 21m

1 stop

BOI11:31 amBoise Air Term. Gowen Fld

$626

Lufthansa

Oct 27

GEG1:49 pmSpokane

19h 46m

2 stops

BCN5:35 pmBarcelona-El Prat

Nov 4

BCN3:10 pmBarcelona-El Prat

28h 59m

1 stop

GEG11:09 amSpokane

$768

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest round-trip

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Mon 9/21

7:05 pm-8:00 am

2 stops28h 55m

Barcelona-El Prat

Wed 10/7

3:15 pm-9:34 am

2 stops26h 19m

$581

Quickest round-trip

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Mon 9/21

3:21 pm-4:25 pm

2 stops17h 04m

Barcelona-El Prat

Wed 10/7

10:45 am-10:39 pm

1 stop19h 54m

$585

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Mon 9/21

7:02 am-10:10 am

1 stop19h 08m

Barcelona-El Prat

Wed 10/7

10:45 am-10:39 pm

1 stop19h 54m

$586

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/22

1:52 pm-3:40 pm

2 stops17h 48m

Barcelona-El Prat

Tue 10/6

12:20 pm-11:59 pm

2 stops19h 39m

$597

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Sat 11/7

5:44 pm-9:00 am

2 stops31h 16m

Barcelona-El Prat

Wed 11/18

10:30 am-11:31 am

2 stops33h 01m

$600

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Sat 11/7

5:44 pm-9:00 am

2 stops31h 16m

Barcelona-El Prat

Wed 11/18

10:30 am-10:59 pm

2 stops20h 29m

$600

SpokaneBarcelona

GEG Spokane - BCN Barcelona-El Prat

GEGBCN

Spokane

Tue 11/17

5:00 am-8:40 am

2 stops18h 40m

Barcelona-El Prat

Thu 12/3

10:50 am-10:40 am

2 stops32h 50m

$600

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Tue 1/26

7:00 am-5:30 pm

2 stops26h 30m

Barcelona-El Prat

Tue 2/2

7:05 pm-12:45 pm

2 stops49h 40m

$602

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/11

5:00 am-8:00 am

2 stops19h 00m

Barcelona-El Prat

Wed 10/21

1:15 pm-9:34 am

2 stops28h 19m

$607

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Wed 11/11

5:15 am-8:40 am

2 stops19h 25m

Barcelona-El Prat

Thu 11/26

6:00 am-5:00 pm

2 stops19h 00m

$627

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 Idaho 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 Idaho is in February. Flight prices, which tend to average around $504, 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 Idaho during January instead. Flights to Barcelona-El Prat Airport in January, while not as cheap as those in February, still average around $674.

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

You could potentially save up to 33% on your flight if you consider stops on a Idaho to Barcelona-El Prat Airport flight.

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

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

Best Price Found	$408
Fastest flight time	17h 15m
Direct flights	None

The best one-way flight to Barcelona-El Prat Airport from Idaho in the past 72 hours is $408. The best round-trip flight deal from Idaho to Barcelona-El Prat Airport found on momondo in the last 72 hours is $581.

The fastest flight from Idaho to Barcelona-El Prat Airport takes 17h 15m

There are no direct flights from Idaho to Barcelona-El Prat Airport. There are no popular flight routes from Idaho to Barcelona-El Prat Airport.

Search flight deals

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

When did momondo last update prices for flights from Idaho to Barcelona-El Prat Airport?
Prices for flights from Idaho to Barcelona-El Prat Airport were last updated today.
How many operators does momondo search for flights from Idaho to Barcelona-El Prat Airport?
The number of operators available for flights from Idaho to Barcelona-El Prat Airport is 4 as of September 2026.
How old do you have to be to fly from Idaho to Barcelona-El Prat 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 Idaho to Barcelona-El Prat Airport.
What documentation or ID do you need to fly to Barcelona-El Prat Airport?
The necessary travel and health documents for your Barcelona-El Prat Airport 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 Idaho to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Idaho to Barcelona-El Prat Airport with momondo

Airline	Rating	Free Cancellation	Price
Iberia	PriceFrom $483	Free Cancellation	Rating 7.0 3,249 reviews	Search Iberia flights
United Airlines	PriceFrom $498	Free Cancellation	Rating 7.4 10,206 reviews	Search United Airlines flights
Delta	PriceFrom $599	Free Cancellation	Rating 7.8 8,563 reviews	Search Delta flights
Air Canada	PriceFrom $856	Free Cancellation	Rating 7.1 11,617 reviews	Search Air Canada flights

Sitges

Lloret de Mar

Salou

Tarragona

Castelldefels

El Prat de Llobregat

L'Hospitalet de Llobregat

Tossa de Mar

Calella

Cambrils

Badalona

Roses

Cadaques

Calella de Palafrugell

Santa Susanna

Empuriabrava

L'Estartit

Pals

Malgrat de Mar

Pineda de Mar

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Barcelona from Idaho.

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

momondo does allow users to show only those flights to Barcelona from Idaho which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Idaho to Barcelona?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Barcelona from Idaho.

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

If you are simply researching potential flights to Barcelona, momondo offers a useful price alert feature which will track prices for flights to Barcelona from Idaho and alert you when they change.

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Cheap flights from Idaho to Barcelona from $408

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Barcelona departing on 3/4. 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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United Airlines flights from Idaho to Barcelona-El Prat Airport

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

Lufthansa flights from Idaho to Barcelona-El Prat Airport

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

momondo Fare Finder

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

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

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

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

What is the cheapest airline that flies from Idaho 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 Idaho to Barcelona-El Prat Airport flight deals and tips

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

Best airlines flying from Idaho to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Idaho 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.

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

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