$463+ Cheap flights from Idaho to Barcelona-El Prat (BCN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BCN
Mar 5 — Mar 121
1 adult, Economy
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Find cheap flights from Idaho to Barcelona-El Prat with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho to Barcelona-El Prat
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Cheapest flights from Idaho to Barcelona-El PratExplore the most affordable flight options available from Idaho to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
Explore the most affordable flight options available from Idaho to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:55 pm
BOI
- BCN
2 stops30h 25m
United Airlines
Mon 3/1610:30 am
BCN
- BOI
2 stops31h 47m
United Airlines
Deal found 2/3![United Airlines logo]()
$491
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/911:30 pm
BOI
- BCN
2 stops24h 30m
Delta
Mon 3/169:30 am
BCN
- BOI
2 stops31h 25m
Delta
Deal found 2/2![Delta logo]()
$492
This Lufthansa deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1812:41 pm
GEG
- BCN
2 stops26h 24m
Lufthansa
Wed 3/257:40 am
BCN
- GEG
2 stops21h 23m
Lufthansa
Deal found 2/1![Lufthansa logo]()
$601
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:23 am
BOI
- BCN
1 stop23h 57m
United Airlines
Tue 5/1912:15 pm
BCN
- BOI
2 stops38h 56m
United Airlines
Deal found 2/1![United Airlines logo]()
$612
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/15:00 am
BOI
- BCN
2 stops33h 25m
United Airlines
Wed 4/221:15 pm
BCN
- BOI
2 stops40h 07m
United Airlines
Deal found 2/1![United Airlines logo]()
$625
This Finnair deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:31 pm
BOI
- BCN
1 stop13h 04m
Multiple Airlines
Wed 4/223:30 pm
BCN
- BOI
2 stops29h 33m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$637
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/91:41 pm
GEG
- BCN
2 stops33h 19m
United Airlines
Wed 5/2012:15 pm
BCN
- GEG
2 stops18h 01m
United Airlines
Deal found 2/1![United Airlines logo]()
$639
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:05 am
GEG
- BCN
2 stops26h 20m
Delta
Wed 5/2012:55 pm
BCN
- GEG
1 stop14h 48m
Delta
Deal found 2/1![Delta logo]()
$642
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:18 pm
IDA
- BCN
2 stops20h 07m
American Airlines
Wed 2/2512:30 pm
BCN
- IDA
2 stops18h 54m
American Airlines
Deal found 2/1![American Airlines logo]()
$667
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:05 am
GEG
- BCN
1 stop14h 40m
Delta
Wed 5/2012:55 pm
BCN
- GEG
1 stop14h 48m
Delta
Deal found 2/2![Delta logo]()
$682
This Iberia deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
BOI
- BCN
1 stop17h 50m
Iberia
Fri 2/2710:40 am
BCN
- BOI
1 stop19h 42m
Iberia
Deal found 2/3![Iberia logo]()
$685
This Finnair deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
BOI
- BCN
1 stop17h 50m
Finnair
Fri 2/2710:40 am
BCN
- BOI
1 stop19h 42m
Finnair
Deal found 2/1![Finnair logo]()
$686
Best flights from Idaho to Barcelona-El PratDiscover carefully curated flight deals from Idaho to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
Discover carefully curated flight deals from Idaho to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:55 pm
BOI
- BCN
2 stops30h 25m
United Airlines
Mon 3/1610:30 am
BCN
- BOI
2 stops31h 47m
United Airlines
Deal found 2/3![United Airlines logo]()
$491
This KLM deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:45 pm
BOI
- BCN
2 stops19h 15m
Multiple Airlines
Mon 3/169:45 am
BCN
- BOI
1 stop19h 40m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$491
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/911:30 pm
BOI
- BCN
2 stops24h 30m
Delta
Mon 3/169:30 am
BCN
- BOI
2 stops31h 07m
Delta
Deal found 2/1![Delta logo]()
$492
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:18 pm
IDA
- BCN
1 stop34h 32m
American Airlines
Wed 2/2512:30 pm
BCN
- IDA
2 stops18h 54m
American Airlines
Deal found 2/1![American Airlines logo]()
$670
This Iberia deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
BOI
- BCN
1 stop17h 50m
Iberia
Fri 2/2710:40 am
BCN
- BOI
1 stop19h 42m
Iberia
Deal found 2/3![Iberia logo]()
$685
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:23 am
BOI
- BCN
1 stop23h 57m
United Airlines
Tue 5/1912:15 pm
BCN
- BOI
2 stops38h 56m
United Airlines
Deal found 2/1![United Airlines logo]()
$612
This Finnair deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:31 pm
BOI
- BCN
1 stop13h 04m
Multiple Airlines
Wed 4/223:30 pm
BCN
- BOI
2 stops29h 33m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$637
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:32 am
GEG
- BCN
2 stops17h 58m
Delta
Wed 5/206:20 am
BCN
- GEG
2 stops21h 23m
Delta
Deal found 2/1![Delta logo]()
$648
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/15:00 am
BOI
- BCN
2 stops33h 25m
United Airlines
Wed 4/221:15 pm
BCN
- BOI
2 stops40h 07m
United Airlines
Deal found 2/1![United Airlines logo]()
$625
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:05 am
GEG
- BCN
1 stop14h 40m
Delta
Wed 5/2012:55 pm
BCN
- GEG
1 stop14h 48m
Delta
Deal found 2/2![Delta logo]()
$682
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/251:08 pm
JAC
- BCN
2 stops21h 17m
American Airlines
Mon 3/99:35 am
BCN
- JAC
1 stop34h 03m
American Airlines
Deal found 2/1![American Airlines logo]()
$792
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:25 am
GEG
- BCN
1 stop18h 20m
Delta
Wed 5/2012:55 pm
BCN
- GEG
1 stop14h 48m
Delta
Deal found 2/2![Delta logo]()
$682
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:00 am
GEG
- BCN
2 stops19h 00m
United Airlines
Sun 3/110:30 am
BCN
- GEG
2 stops19h 47m
United Airlines
Deal found 1/31![United Airlines logo]()
$692
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:35 pm
IDA
- BCN
2 stops34h 45m
United Airlines
Wed 3/2510:30 am
BCN
- IDA
2 stops34h 00m
United Airlines
Deal found 1/31![United Airlines logo]()
$705
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:05 am
GEG
- BCN
1 stop14h 40m
Delta
Wed 5/2012:55 pm
BCN
- GEG
1 stop17h 18m
Delta
Deal found 2/2![Delta logo]()
$776
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2510:45 am
IDA
- BCN
2 stops21h 35m
United Airlines
Sun 3/110:30 am
BCN
- IDA
2 stops18h 28m
United Airlines
Deal found 1/31![United Airlines logo]()
$712
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/91:41 pm
GEG
- BCN
2 stops33h 19m
United Airlines
Fri 5/2212:15 pm
BCN
- GEG
2 stops35h 50m
United Airlines
Deal found 2/1![United Airlines logo]()
$775
This Air France deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1611:20 am
IDA
- BCN
2 stops17h 30m
Multiple Airlines
Wed 7/110:55 am
BCN
- IDA
2 stops19h 19m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$1,531
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/167:00 am
IDA
- BCN
1 stop19h 10m
American Airlines
Tue 6/3010:30 am
BCN
- IDA
2 stops19h 27m
American Airlines
Deal found 2/1![American Airlines logo]()
$1,531
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/214:16 pm
JAC
- BCN
2 stops33h 04m
United Airlines
Sat 4/412:15 pm
BCN
- JAC
2 stops31h 02m
United Airlines
Deal found 2/3![United Airlines logo]()
$974
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/212:30 pm
JAC
- BCN
1 stop34h 50m
United Airlines
Fri 4/312:00 pm
BCN
- JAC
1 stop17h 26m
United Airlines
Deal found 2/1![United Airlines logo]()
$1,027
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/146:10 am
IDA
- BCN
2 stops18h 25m
Delta
Thu 7/211:35 am
BCN
- IDA
2 stops31h 04m
Delta
Deal found 2/1![Delta logo]()
$1,531
This Scandinavian Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/257:20 am
JAC
- BCN
3 stops27h 00m
Multiple Airlines
Mon 3/97:10 pm
BCN
- JAC
3 stops48h 00m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$2,120
This Scandinavian Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/217:20 am
JAC
- BCN
3 stops28h 00m
Multiple Airlines
Fri 4/37:00 pm
BCN
- JAC
3 stops49h 10m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$2,151
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:36 am
IDA
- BCN
2 stops18h 59m
United Airlines
Tue 3/2411:00 am
BCN
- IDA
2 stops29h 56m
United Airlines
Deal found 1/31![United Airlines logo]()
$1,429
This Scandinavian Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/217:20 am
JAC
- BCN
3 stops28h 00m
Multiple Airlines
Sat 4/47:00 pm
BCN
- JAC
3 stops49h 10m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$2,228
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1610:40 am
IDA
- BCN
2 stops18h 35m
United Airlines
Tue 6/3012:15 pm
BCN
- IDA
2 stops33h 09m
United Airlines
Deal found 2/1![United Airlines logo]()
$1,511
Last-minute flights from Idaho to Barcelona-El PratDiscover last-minute flight deals from Idaho to Barcelona-El Prat. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Barcelona-El Prat. Data last updated February 3, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/166:25 am
BOI
- BCN
2 stops22h 35m
United Airlines
Sun 2/2210:30 am
BCN
- BOI
2 stops31h 42m
United Airlines
Deal found 2/1![United Airlines logo]()
$711
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:18 pm
IDA
- BCN
2 stops20h 07m
American Airlines
Wed 2/2512:30 pm
BCN
- IDA
2 stops18h 54m
American Airlines
Deal found 2/1![American Airlines logo]()
$667
This Iberia deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
BOI
- BCN
1 stop17h 50m
Iberia
Fri 2/2710:40 am
BCN
- BOI
1 stop19h 42m
Iberia
Deal found 2/3![Iberia logo]()
$685
This Finnair deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
BOI
- BCN
1 stop17h 50m
Finnair
Fri 2/2710:40 am
BCN
- BOI
1 stop19h 42m
Finnair
Deal found 2/1![Finnair logo]()
$686
This Finnair deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:00 am
BOI
- BCN
1 stop17h 50m
Multiple Airlines
Fri 2/273:05 pm
BCN
- BOI
2 stops29h 46m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$690
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/251:44 pm
JAC
- BCN
2 stops22h 01m
American Airlines
Mon 3/96:10 pm
BCN
- JAC
2 stops25h 08m
American Airlines
Deal found 2/1![American Airlines logo]()
$689
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:00 am
GEG
- BCN
2 stops19h 00m
United Airlines
Sun 3/110:30 am
BCN
- GEG
2 stops20h 34m
United Airlines
Deal found 2/2![United Airlines logo]()
$692
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:55 pm
BOI
- BCN
2 stops30h 25m
United Airlines
Mon 3/1610:30 am
BCN
- BOI
2 stops31h 47m
United Airlines
Deal found 2/3![United Airlines logo]()
$491
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/911:30 pm
BOI
- BCN
2 stops24h 30m
Delta
Mon 3/169:30 am
BCN
- BOI
2 stops31h 25m
Delta
Deal found 2/2![Delta logo]()
$492
This KLM deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/911:30 pm
BOI
- BCN
1 stop25h 05m
KLM
Mon 3/169:45 am
BCN
- BOI
1 stop19h 40m
KLM
Deal found 2/2![KLM logo]()
$697
This Lufthansa deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1812:41 pm
GEG
- BCN
2 stops26h 24m
Lufthansa
Wed 3/257:40 am
BCN
- GEG
2 stops21h 23m
Lufthansa
Deal found 2/1![Lufthansa logo]()
$601
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:35 pm
IDA
- BCN
2 stops34h 45m
United Airlines
Wed 3/2510:30 am
BCN
- IDA
2 stops34h 00m
United Airlines
Deal found 1/31![United Airlines logo]()
$705
One-way flights from Idaho to Barcelona-El PratSearch for one-way flight options from Idaho to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
Search for one-way flight options from Idaho to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1510:55 am
BOI
- BCN
3 stops30h 20m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:20 am
BOI
- BCN
3 stops28h 50m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/55:00 am
BOI
- BCN
2 stops19h 20m
United Airlines
Deal found 2/3![United Airlines logo]()
$598
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:41 pm
GEG
- BCN
2 stops34h 39m
United Airlines
Deal found 2/2![United Airlines logo]()
$607
This Cheapflightsfares deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/112:27 pm
GEG
- BCN
2 stops24h 58m
Lufthansa
Deal found 2/1![Lufthansa logo]()
$689
This Air Canada deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:15 am
BOI
- BCN
3 stops19h 05m
Air Canada
Deal found 2/3![Air Canada logo]()
$711
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:35 am
BOI
- BCN
1 stop23h 45m
United Airlines
Deal found 2/1![United Airlines logo]()
$713
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2512:25 pm
GEG
- BCN
2 stops20h 05m
American Airlines
Deal found 2/2![American Airlines logo]()
$715
This KLM deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/51:40 pm
BOI
- BCN
1 stop15h 10m
KLM
Deal found 2/2![KLM logo]()
$718
This oojo deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/31:55 pm
BOI
- BCN
2 stops16h 50m
Icelandair
Deal found 2/3![Icelandair logo]()
$956
This KLM deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/31:52 pm
BOI
- BCN
1 stop14h 58m
KLM
Deal found 2/3![KLM logo]()
$1,013
This Air Canada deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:10 am
GEG
- BCN
3 stops24h 45m
Air Canada
Deal found 2/2![Air Canada logo]()
$1,013
Find flight deals from Idaho to Barcelona-El Prat
Keep the following information in mind while searching for Idaho to Barcelona-El Prat flight deals. Data was last updated February 3, 2026.
Round-trip from | $491 (United Airlines) |
|---|---|
One-way from | $463 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $504 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to Barcelona-El Prat 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, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Idaho to Barcelona-El Prat Airport that are best for you.
Fly from
Idaho
Fly to
Barcelona-El Prat
Route
Depart
Return
Price
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Mon 3/9
6:55 pm-8:20 am
2 stops30h 25m
Barcelona-El Prat
Mon 3/16
10:30 am-11:17 am
2 stops31h 47m
$491
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Mon 3/9
12:45 pm-3:00 pm
2 stops19h 15m
Barcelona-El Prat
Mon 3/16
9:45 am-10:25 pm
1 stop19h 40m
$491
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Mon 3/9
11:30 pm-7:00 am
2 stops24h 30m
Barcelona-El Prat
Mon 3/16
9:30 am-9:37 am
2 stops31h 07m
$492
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Tue 5/5
6:23 am-2:20 pm
1 stop23h 57m
Barcelona-El Prat
Tue 5/19
12:15 pm-7:11 pm
2 stops38h 56m
$612
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Wed 4/1
5:00 am-10:25 pm
2 stops33h 25m
Barcelona-El Prat
Wed 4/22
1:15 pm-9:22 pm
2 stops40h 07m
$625
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Wed 4/1
1:31 pm-10:35 am
1 stop13h 04m
Barcelona-El Prat
Wed 4/22
3:30 pm-1:03 pm
2 stops29h 33m
$637
SpokaneBarcelona
GEG - BCN
GEGBCN
Spokane
Sun 5/10
9:32 am-12:30 pm
2 stops17h 58m
Barcelona-El Prat
Wed 5/20
6:20 am-6:43 pm
2 stops21h 23m
$648
Idaho FallsBarcelona
IDA - BCN
IDABCN
Idaho Falls Fanning Field
Thu 2/19
2:18 pm-8:50 am
1 stop34h 32m
Barcelona-El Prat
Wed 2/25
12:30 pm-11:24 pm
2 stops18h 54m
$670
SpokaneBarcelona
GEG - BCN
GEGBCN
Spokane
Thu 5/7
11:05 am-10:45 am
1 stop14h 40m
Barcelona-El Prat
Wed 5/20
12:55 pm-6:43 pm
1 stop14h 48m
$682
SpokaneBarcelona
GEG - BCN
GEGBCN
Spokane
Sat 5/9
7:25 am-10:45 am
1 stop18h 20m
Barcelona-El Prat
Wed 5/20
12:55 pm-6:43 pm
1 stop14h 48m
$682
Showing 1-10 of 38 results
Best time to book a flight from Idaho to Barcelona-El Prat
Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Idaho with our price prediction graph.
BOI-BCN
GEG-BCN
IDA-BCN
JAC-BCN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Idaho to Barcelona-El Prat Airport
USID-BCN
BOI-BCN
GEG-BCN
IDA-BCN
JAC-BCN
What is the cheapest month to book a flight from Idaho to Barcelona-El Prat Airport?
Currently, February is the cheapest month in which you can book a flight from Idaho to Barcelona-El Prat Airport (average of $478). Flying from Idaho to Barcelona-El Prat Airport in December is currently the most expensive (average of $1,165). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Idaho to Barcelona-El Prat Airport?
Related info for your journey
Find useful and relevant information for your journey from Idaho to Barcelona-El Prat. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Barcelona-El Prat Airport?
Book flights to Barcelona-El Prat Airport if you plan to visit one of these locationsCalella
Roses
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Idaho to Barcelona-El Prat
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Idaho to Barcelona-El Prat
Discover the top 5 airlines that operate flights from Idaho to Barcelona-El Prat. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$483 | Average$685 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$552 | Average$861 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$599 | Average$892 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$634 | Average$1,029 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$651 | Average$857 | FlexibilityNo cancel fee | On-time67% |