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Cheap flights from Idaho to Barcelona from $357

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 10/12. 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

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Find the cheapest flights from Idaho to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
12:45 pm - 3:40 pm
GEG
-
BCN
17h 55m
2 stops
American Airlines Logo
10:30 am - 8:47 pm
BCN
-
GEG
19h 17m
2 stops
$770American Airlines
Tue, Oct 13 - Fri, Oct 23
Multiple Airlines Logo
1:58 pm - 6:35 pm
GEG
-
BCN
19h 37m
2 stops
Multiple Airlines Logo
12:20 pm - 10:33 pm
BCN
-
GEG
19h 13m
2 stops
$771Multiple Airlines
Wed, Sep 30 - Wed, Oct 14
American Airlines Logo
1:46 pm - 2:15 pm
JAC
-
BCN
16h 29m
2 stops
American Airlines Logo
1:30 pm - 11:59 am
BCN
-
JAC
30h 29m
2 stops
$772American Airlines
Tue, Oct 6 - Tue, Oct 20
American Airlines Logo
1:46 pm - 2:15 pm
JAC
-
BCN
16h 29m
2 stops
American Airlines Logo
1:30 pm - 11:59 am
BCN
-
JAC
30h 29m
2 stops
$773American Airlines
Tue, Oct 6 - Tue, Oct 20
United Airlines Logo
8:15 am - 2:20 pm
BOI
-
BCN
22h 05m
1 stop
United Airlines Logo
12:15 pm - 9:31 pm
BCN
-
BOI
41h 16m
2 stops
$779United Airlines
Mon, Oct 19 - Thu, Oct 22
United Airlines Logo
12:50 pm - 2:20 pm
GEG
-
BCN
16h 30m
1 stop
United Airlines Logo
12:15 pm - 3:05 pm
BCN
-
GEG
35h 50m
2 stops
$779United Airlines
Tue, Oct 13 - Fri, Oct 23
Air Canada Logo
7:05 pm - 8:00 am
BOI
-
BCN
28h 55m
2 stops
Air Canada Logo
12:15 pm - 9:31 pm
BCN
-
BOI
41h 16m
2 stops
$782Air Canada
Mon, Oct 19 - Thu, Oct 22
KLM Logo
1:00 pm - 11:10 am
GEG
-
BCN
13h 10m
1 stop
KLM Logo
1:20 pm - 11:42 pm
BCN
-
GEG
19h 22m
1 stop
$799KLM
Tue, Oct 13 - Fri, Oct 23
Air Canada Logo
5:00 am - 8:00 am
BOI
-
BCN
19h 00m
2 stops
Air Canada Logo
12:15 pm - 9:31 pm
BCN
-
BOI
41h 16m
2 stops
$832Air Canada
Sun, Sep 20 - Mon, Sep 28
Lufthansa Logo
7:15 am - 1:15 pm
JAC
-
BCN
22h 00m
1 stop
Lufthansa Logo
6:40 pm - 5:49 pm
BCN
-
JAC
31h 09m
2 stops
$888Lufthansa
Mon, Sep 7 - Mon, Sep 21

KLM flights from Idaho to Barcelona-El Prat Airport

Our best KLM deals on Idaho to Barcelona-El Prat Airport flight tickets
KLM
Oct 13
GEG1:00 pmSpokane
13h 10m
1 stop
BCN11:10 amBarcelona-El Prat
Oct 23
BCN1:20 pmBarcelona-El Prat
19h 22m
1 stop
GEG11:42 pmSpokane
$799
KLM
Oct 1
GEG1:00 pmSpokane
13h 10m
1 stop
BCN11:10 amBarcelona-El Prat
Oct 13
BCN6:20 amBarcelona-El Prat
18h 46m
2 stops
GEG4:06 pmSpokane
$855
KLM
Aug 3
BOI2:02 pmBoise Air Term. Gowen Fld
14h 48m
1 stop
BCN12:50 pmBarcelona-El Prat
Aug 12
BCN1:20 pmBarcelona-El Prat
17h 10m
1 stop
BOI10:30 pmBoise Air Term. Gowen Fld
$906

Air Canada flights from Idaho to Barcelona-El Prat Airport

Our best Air Canada deals on Idaho to Barcelona-El Prat Airport flight tickets
Air Canada
Oct 19
BOI7:05 pmBoise Air Term. Gowen Fld
28h 55m
2 stops
BCN8:00 amBarcelona-El Prat
Oct 22
BCN12:15 pmBarcelona-El Prat
41h 16m
2 stops
BOI9:31 pmBoise Air Term. Gowen Fld
$782
Air Canada
Sep 20
BOI5:00 amBoise Air Term. Gowen Fld
19h 00m
2 stops
BCN8:00 amBarcelona-El Prat
Sep 28
BCN12:15 pmBarcelona-El Prat
41h 16m
2 stops
BOI9:31 pmBoise Air Term. Gowen Fld
$832
Air Canada
Sep 20
BOI5:00 amBoise Air Term. Gowen Fld
19h 00m
2 stops
BCN8:00 amBarcelona-El Prat
Sep 28
BCN12:15 pmBarcelona-El Prat
41h 16m
2 stops
BOI9:31 pmBoise Air Term. Gowen Fld
$837

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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 May 22, 2026.
Use the filters below to find and compare flights from Idaho to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Tue 10/13

12:45 pm-3:40 pm

2 stops17h 55m

Barcelona-El Prat

Fri 10/23

10:30 am-8:47 pm

2 stops19h 17m

$770

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Wed 9/30

1:58 pm-6:35 pm

2 stops19h 37m

Barcelona-El Prat

Wed 10/14

12:20 pm-10:33 pm

2 stops19h 13m

$771

JacksonBarcelona

JAC - BCN

JACBCN

Jackson Hole

Tue 10/6

1:46 pm-2:15 pm

2 stops16h 29m

Barcelona-El Prat

Tue 10/20

1:30 pm-11:59 am

2 stops30h 29m

$772

JacksonBarcelona

JAC - BCN

JACBCN

Jackson Hole

Tue 10/6

1:46 pm-2:15 pm

2 stops16h 29m

Barcelona-El Prat

Tue 10/20

1:30 pm-11:59 am

2 stops30h 29m

$773

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 10/19

8:15 am-2:20 pm

1 stop22h 05m

Barcelona-El Prat

Thu 10/22

12:15 pm-9:31 pm

2 stops41h 16m

$779

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Tue 10/13

12:50 pm-2:20 pm

1 stop16h 30m

Barcelona-El Prat

Fri 10/23

12:15 pm-3:05 pm

2 stops35h 50m

$779

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 10/19

7:05 pm-8:00 am

2 stops28h 55m

Barcelona-El Prat

Thu 10/22

12:15 pm-9:31 pm

2 stops41h 16m

$782
Quickest round-trip

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Tue 10/13

1:00 pm-11:10 am

1 stop13h 10m

Barcelona-El Prat

Fri 10/23

1:20 pm-11:42 pm

1 stop19h 22m

$799

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 9/20

5:00 am-8:00 am

2 stops19h 00m

Barcelona-El Prat

Mon 9/28

12:15 pm-9:31 pm

2 stops41h 16m

$832

JacksonBarcelona

JAC - BCN

JACBCN

Jackson Hole

Mon 9/7

7:15 am-1:15 pm

1 stop22h 00m

Barcelona-El Prat

Mon 9/21

6:40 pm-5:49 pm

2 stops31h 09m

$888

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Barcelona from

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

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 $467, 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 $492.

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

You could potentially save up to 3% 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

Fastest flight time

16h 30m

Direct flights

None
The fastest flight from Idaho to Barcelona-El Prat Airport takes 16h 30m
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?

  • 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
IberiaPriceFrom $483Free CancellationRating
7.0
3,219 reviews
Search Iberia flights
United AirlinesPriceFrom $498Free CancellationRating
7.4
9,751 reviews
Search United Airlines flights
DeltaPriceFrom $599Free CancellationRating
7.9
8,445 reviews
Search Delta flights
American AirlinesPriceFrom $634Free CancellationRating
7.1
11,645 reviews
Search American Airlines flights
Air CanadaPriceFrom $856Free CancellationRating
7.1
11,077 reviews
Search Air Canada flights

Traveling to a place near Barcelona?

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

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

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