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Cheap flights from Idaho to Barcelona from $367

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 1/15. 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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0 bags

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Find the cheapest flights from Idaho to Barcelona

Cheap round-trip flights

United Airlines Logo
11:25 am - 1:10 pmGEG-BCN
16h 45m1 stop
United Airlines Logo
1:35 pm - 11:31 amBCN-GEG
30h 56m2 stops
$560United Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Multiple Airlines Logo
6:20 am - 9:35 amBOI-BCN
19h 15m2 stops
Multiple Airlines Logo
1:35 pm - 1:25 pmBCN-BOI
31h 50m3 stops
$567Multiple Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
Multiple Airlines Logo
5:10 am - 9:35 amGEG-BCN
19h 25m2 stops
Multiple Airlines Logo
1:35 pm - 12:45 pmBCN-GEG
32h 10m3 stops
$567Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Air Canada Logo
6:20 am - 9:35 amBOI-BCN
19h 15m2 stops
Air Canada Logo
1:35 pm - 1:25 pmBCN-BOI
31h 50m2 stops
$574Air Canada
Find Deal
Wed, Nov 5 - Wed, Nov 12
Delta Logo
5:25 am - 7:00 amBOI-BCN
18h 35m2 stops
Delta Logo
10:15 am - 12:35 amBCN-BOI
22h 20m2 stops
$587Delta
Find Deal
Wed, Oct 29 - Thu, Nov 13
Delta Logo
11:20 am - 3:00 pmGEG-BCN
18h 40m2 stops
Delta Logo
10:55 am - 9:07 amBCN-GEG
31h 12m2 stops
$592Delta
Find Deal
Wed, Nov 5 - Wed, Nov 12
Finnair Logo
7:39 am - 8:50 amBOI-BCN
17h 11m1 stop
Finnair Logo
9:15 pm - 9:15 pmBCN-BOI
31h 00m2 stops
$605Finnair
Find Deal
Mon, Mar 2 - Mon, Mar 9
Air Canada Logo
6:20 am - 9:35 amBOI-BCN
19h 15m2 stops
Air Canada Logo
1:35 pm - 9:21 pmBCN-BOI
39h 46m2 stops
$639Air Canada
Find Deal
Sun, Nov 9 - Sun, Nov 23
Iberia Logo
6:00 am - 8:50 amGEG-BCN
17h 50m1 stop
Iberia Logo
10:40 am - 8:45 pmBCN-GEG
19h 05m1 stop
$786Iberia
Find Deal
Tue, Jan 13 - Fri, Jan 23
Iberia Logo
6:00 am - 8:50 amGEG-BCN
17h 50m1 stop
Iberia Logo
10:40 am - 8:45 pmBCN-GEG
19h 05m1 stop
$831Iberia
Find Deal
Thu, Jan 15 - Fri, Jan 23

American Airlines flights from Idaho to Barcelona-El Prat Airport

Our best American Airlines deals on Idaho to Barcelona-El Prat Airport flight tickets
American Airlines
Oct 16
IDA6:52 amIdaho Falls Fanning Field
19h 18m
1 stop
BCN10:10 amBarcelona-El Prat
Oct 23
BCN6:30 pmBarcelona-El Prat
25h 55m
2 stops
IDA12:25 pmIdaho Falls Fanning Field
$821
Find similar
American Airlines
Dec 14
GEG6:35 amSpokane
20h 20m
2 stops
BCN11:55 amBarcelona-El Prat
Dec 27
BCN10:10 amBarcelona-El Prat
20h 18m
2 stops
GEG9:28 pmSpokane
$1,021
Find similar
American Airlines
Oct 8
JAC1:10 pmJackson Hole
13h 20m
1 stop
BCN10:30 amBarcelona-El Prat
Oct 26
BCN2:00 pmBarcelona-El Prat
28h 47m
1 stop
JAC11:47 amJackson Hole
$3,690
Find similar

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 11
GEG11:25 amSpokane
16h 45m
1 stop
BCN1:10 pmBarcelona-El Prat
Nov 18
BCN1:35 pmBarcelona-El Prat
30h 56m
2 stops
GEG11:31 amSpokane
$560
Find similar
United Airlines
Oct 29
BOI2:31 pmBoise Air Term. Gowen Fld
15h 39m
2 stops
BCN1:10 pmBarcelona-El Prat
Nov 13
BCN3:05 pmBarcelona-El Prat
15h 40m
1 stop
BOI10:45 pmBoise Air Term. Gowen Fld
$583
Find similar
United Airlines
Jan 14
GEG5:00 amSpokane
19h 00m
2 stops
BCN9:00 amBarcelona-El Prat
Jan 23
BCN6:50 amBarcelona-El Prat
23h 32m
3 stops
GEG9:22 pmSpokane
$597
Find similar

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 September 22, 2025.
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

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Tue 11/11

11:25 am-1:10 pm

1 stop16h 45m

Barcelona-El Prat

Tue 11/18

1:35 pm-11:31 am

2 stops30h 56m

$560

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 11/5

6:20 am-9:35 am

2 stops19h 15m

Barcelona-El Prat

Wed 11/12

1:35 pm-1:25 pm

3 stops31h 50m

$567

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Tue 11/11

5:10 am-9:35 am

2 stops19h 25m

Barcelona-El Prat

Tue 11/18

1:35 pm-12:45 pm

3 stops32h 10m

$567

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 11/5

6:20 am-9:35 am

2 stops19h 15m

Barcelona-El Prat

Wed 11/12

1:35 pm-1:25 pm

2 stops31h 50m

$574

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 10/29

5:25 am-7:00 am

2 stops18h 35m

Barcelona-El Prat

Thu 11/13

10:15 am-12:35 am

2 stops22h 20m

$587

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Wed 11/5

11:20 am-3:00 pm

2 stops18h 40m

Barcelona-El Prat

Wed 11/12

10:55 am-9:07 am

2 stops31h 12m

$592

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/2

7:39 am-8:50 am

1 stop17h 11m

Barcelona-El Prat

Mon 3/9

9:15 pm-9:15 pm

2 stops31h 00m

$605

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 11/9

6:20 am-9:35 am

2 stops19h 15m

Barcelona-El Prat

Sun 11/23

1:35 pm-9:21 pm

2 stops39h 46m

$639

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Tue 1/13

6:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Fri 1/23

10:40 am-8:45 pm

1 stop19h 05m

$786

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Thu 1/15

6:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Fri 1/23

10:40 am-8:45 pm

1 stop19h 05m

$831

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $634, 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 November instead. Flights to Barcelona-El Prat Airport in November, while not as cheap as those in February, still average around $651.

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Sunday when prices can be found for as low as $813. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,459. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Flying to Barcelona-El Prat Airport from Idaho in the evening is the least expensive time of day to depart. momondo users have found prices as low as $842 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,010 on average. Flights to Barcelona-El Prat Airport from Idaho in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
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.
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  • 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
United AirlinesPriceFrom $552Free CancellationRating
7.4
8,922 reviews
Search United Airlines flights
DeltaPriceFrom $607Free CancellationRating
7.9
7,971 reviews
Search Delta flights
FinnairPriceFrom $637Free CancellationRating
7.6
1,326 reviews
Search Finnair flights
American AirlinesPriceFrom $641Free CancellationRating
7.2
10,000 reviews
Search American Airlines 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
El Prat de Llobregat
Castelldefels
Tarragona
L'Hospitalet de Llobregat
Santa Susanna
Calella
Cambrils
Cadaques
Empuriabrava
Pineda de Mar
Badalona
Roses
Pals
Malgrat de Mar
Palafrugell
Tortosa

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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