$430+ Cheap flights from Spain to Idaho
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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — BOI
Apr 26 — May 31
Round-trip
1 adult, Economy
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Find cheap flights from Spain to Idaho with Cheapflights
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Cheapest flights from Spain to IdahoExplore the most affordable flight options available from Spain to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.
Explore the most affordable flight options available from Spain to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Thu 11/196:00 am
MAD
- JAC
2 stops36h 03m
United Airlines
Mon 11/234:25 pm
JAC
- MAD
2 stops32h 50m
United Airlines
Deal found 3/23![United Airlines logo]()
$902
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/93:25 pm
MAD
- JAC
2 stops29h 16m
American Airlines
Mon 4/131:25 pm
JAC
- MAD
2 stops20h 05m
American Airlines
Deal found 3/24![American Airlines logo]()
$905
This Flighttix deal was found by Cheapflights users on 3/24. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:55 pm
MAD
- JAC
1 stop28h 46m
Iberia
Mon 4/131:25 pm
JAC
- MAD
2 stops16h 05m
Iberia
Deal found 3/24![Iberia logo]()
$909
This Delta deal was found by Cheapflights users on 3/23. 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 5/76:00 am
MAD
- JAC
2 stops22h 15m
Delta
Thu 5/147:00 am
JAC
- MAD
2 stops28h 35m
Delta
Deal found 3/23![Delta logo]()
$913
This Finnair deal was found by Cheapflights users on 3/25. 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 4/105:30 pm
MAD
- JAC
2 stops27h 10m
Multiple Airlines
Tue 4/141:25 pm
JAC
- MAD
1 stop17h 00m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$935
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Mon 4/136:30 pm
BCN
- BOI
2 stops28h 59m
Multiple Airlines
Sun 4/197:40 am
BOI
- BCN
1 stop24h 45m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$979
This Expedia deal was found by Cheapflights users on 3/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:00 am
BCN
- BOI
2 stops23h 02m
Multiple Airlines
Thu 5/1411:56 am
BOI
- BCN
2 stops26h 14m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$987
This Expedia deal was found by Cheapflights users on 3/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:00 am
BCN
- BOI
2 stops23h 58m
Multiple Airlines
Tue 8/251:00 pm
BOI
- BCN
2 stops25h 10m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$990
This Expedia deal was found by Cheapflights users on 3/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:00 am
BCN
- GEG
2 stops22h 31m
Multiple Airlines
Thu 5/1412:46 pm
GEG
- BCN
2 stops24h 24m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$990
This KLM deal was found by Cheapflights users on 3/27. 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.
Thu 9/312:00 pm
BIO
- BOI
2 stops19h 59m
Multiple Airlines
Tue 9/83:30 pm
BOI
- BIO
2 stops18h 00m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$1,010
This United Airlines deal was found by Cheapflights users on 3/23. 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 10/76:50 am
BIO
- BOI
2 stops20h 26m
United Airlines
Sun 10/1111:45 am
BOI
- BIO
2 stops27h 40m
United Airlines
Deal found 3/23![United Airlines logo]()
$1,011
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/2212:55 pm
VLC
- BOI
2 stops35h 53m
United Airlines
Sun 4/265:29 pm
BOI
- VLC
2 stops40h 06m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,013
Best flights from Spain to IdahoDiscover carefully curated flight deals from Spain to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
Discover carefully curated flight deals from Spain to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
This Flighttix deal was found by Cheapflights users on 3/24. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/91:00 pm
MAD
- JAC
1 stop31h 41m
Iberia
Mon 4/131:25 pm
JAC
- MAD
1 stop17h 00m
Iberia
Deal found 3/24![Iberia logo]()
$910
This Finnair deal was found by Cheapflights users on 3/25. 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 4/105:30 pm
MAD
- JAC
2 stops27h 10m
Multiple Airlines
Tue 4/141:25 pm
JAC
- MAD
1 stop17h 00m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$935
This United Airlines deal was found by Cheapflights users on 3/24. 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 4/2212:55 pm
VLC
- BOI
2 stops34h 32m
United Airlines
Sun 4/265:00 am
BOI
- VLC
2 stops28h 35m
United Airlines
Deal found 3/24![United Airlines logo]()
$1,013
This Delta deal was found by Cheapflights users on 3/26. 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.
Fri 4/106:45 am
BIO
- BOI
2 stops17h 18m
Delta
Tue 4/143:44 pm
BOI
- BIO
2 stops17h 46m
Delta
Deal found 3/26![Delta logo]()
$1,014
This KLM deal was found by Cheapflights users on 3/24. 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 4/87:05 am
MAD
- BOI
2 stops18h 13m
KLM
Sun 4/121:40 pm
BOI
- MAD
1 stop14h 35m
KLM
Deal found 3/24![KLM logo]()
$1,026
This FlightHub deal was found by Cheapflights users on 3/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/710:40 am
AGP
- BOI
2 stops44h 24m
Scandinavian Airlines
Tue 7/2810:23 am
BOI
- AGP
2 stops39h 27m
Scandinavian Airlines
Deal found 3/23![Scandinavian Airlines logo]()
$1,074
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/910:30 am
BCN
- IDA
2 stops21h 09m
American Airlines
Mon 4/131:43 pm
IDA
- BCN
1 stop33h 52m
American Airlines
Deal found 3/24![American Airlines logo]()
$1,103
This KLM deal was found by Cheapflights users on 3/27. 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.
Thu 9/312:00 pm
BIO
- BOI
2 stops19h 59m
Multiple Airlines
Tue 9/83:30 pm
BOI
- BIO
2 stops18h 00m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$1,010
This Delta deal was found by Cheapflights users on 3/27. 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 4/116:45 am
BIO
- BOI
2 stops22h 24m
Delta
Wed 4/155:34 am
BOI
- BIO
2 stops21h 41m
Delta
Deal found 3/27![Delta logo]()
$1,015
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Thu 5/76:40 am
BCN
- BOI
2 stops35h 14m
United Airlines
Sun 5/247:05 pm
BOI
- BCN
1 stop35h 15m
United Airlines
Deal found 3/24![United Airlines logo]()
$1,016
This KLM deal was found by Cheapflights users on 3/23. 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.
Tue 5/127:05 am
MAD
- BOI
2 stops18h 45m
KLM
Tue 5/1912:15 pm
BOI
- MAD
2 stops17h 25m
KLM
Deal found 3/23![KLM logo]()
$1,028
This Flysmarter deal was found by Cheapflights users on 3/26. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:10 am
BCN
- GEG
2 stops19h 19m
Multiple Airlines
Wed 4/153:30 pm
GEG
- BCN
2 stops16h 40m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$1,013
This United Airlines deal was found by Cheapflights users on 3/23. 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 4/225:55 am
MAD
- GEG
2 stops24h 16m
United Airlines
Sun 4/265:05 am
GEG
- MAD
2 stops18h 55m
United Airlines
Deal found 3/23![United Airlines logo]()
$1,017
This Delta deal was found by Cheapflights users on 3/27. 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.
Fri 4/101:05 pm
MAD
- BOI
2 stops17h 06m
Delta
Mon 4/133:44 pm
BOI
- MAD
2 stops19h 31m
Delta
Deal found 3/27![Delta logo]()
$1,021
This KLM deal was found by Cheapflights users on 3/26. 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.
Fri 4/1010:25 am
MAD
- BOI
2 stops18h 45m
KLM
Tue 4/142:18 pm
BOI
- MAD
1 stop13h 57m
KLM
Deal found 3/26![KLM logo]()
$1,028
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/221:00 pm
MAD
- GEG
1 stop16h 33m
American Airlines
Sun 4/261:22 pm
GEG
- MAD
2 stops41h 28m
American Airlines
Deal found 3/24![American Airlines logo]()
$1,202
This KLM deal was found by Cheapflights users on 3/26. 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.
Fri 4/1012:00 pm
BIO
- BOI
2 stops18h 04m
Multiple Airlines
Tue 4/142:18 pm
BOI
- BIO
2 stops19h 12m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$1,014
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Thu 5/78:00 am
BCN
- BOI
2 stops21h 17m
United Airlines
Sat 5/237:05 pm
BOI
- BCN
1 stop35h 10m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,018
This Delta deal was found by Cheapflights users on 3/25. 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 4/136:20 am
BCN
- BOI
2 stops17h 54m
Delta
Sun 4/1910:45 am
BOI
- BCN
2 stops20h 50m
Delta
Deal found 3/25![Delta logo]()
$1,023
This KLM deal was found by Cheapflights users on 3/25. 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.
Thu 5/711:00 am
BCN
- BOI
1 stop19h 28m
KLM
Sat 5/2310:39 am
BOI
- BCN
1 stop16h 31m
KLM
Deal found 3/25![KLM logo]()
$1,029
This Air Canada deal was found by Cheapflights users on 3/23. 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.
Thu 5/76:40 am
BCN
- GEG
3 stops20h 56m
Air Canada
Thu 5/147:10 am
GEG
- BCN
3 stops24h 45m
Air Canada
Deal found 3/23![Air Canada logo]()
$2,542
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Thu 4/98:00 am
BCN
- IDA
2 stops33h 53m
United Airlines
Mon 4/135:20 pm
IDA
- BCN
2 stops16h 35m
United Airlines
Deal found 3/24![United Airlines logo]()
$1,020
This Expedia deal was found by Cheapflights users on 3/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:05 am
MAD
- GEG
2 stops23h 26m
Multiple Airlines
Mon 5/181:59 pm
GEG
- MAD
2 stops22h 56m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$1,020
This Delta deal was found by Cheapflights users on 3/26. 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 4/96:00 am
MAD
- BOI
2 stops20h 43m
Delta
Tue 5/268:56 am
BOI
- MAD
2 stops18h 24m
Delta
Deal found 3/26![Delta logo]()
$1,024
This KLM deal was found by Cheapflights users on 3/25. 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.
Sat 5/910:25 am
MAD
- BOI
2 stops19h 48m
KLM
Sat 5/1612:15 pm
BOI
- MAD
2 stops17h 25m
KLM
Deal found 3/25![KLM logo]()
$1,029
This American Airlines deal was found by Cheapflights users on 3/23. 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 4/810:45 am
BCN
- IDA
1 stop34h 28m
American Airlines
Sun 4/121:43 pm
IDA
- BCN
1 stop33h 52m
American Airlines
Deal found 3/23![American Airlines logo]()
$1,305
This Delta deal was found by Cheapflights users on 3/23. 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 5/711:00 am
BCN
- GEG
1 stop33h 17m
Delta
Thu 5/144:15 pm
GEG
- BCN
2 stops15h 55m
Delta
Deal found 3/23![Delta logo]()
$1,024
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Thu 8/276:00 am
BCN
- BOI
2 stops25h 50m
United Airlines
Mon 8/3112:23 pm
BOI
- BCN
1 stop16h 52m
United Airlines
Deal found 3/24![United Airlines logo]()
$1,026
This KLM deal was found by Cheapflights users on 3/23. 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.
Thu 5/711:00 am
BCN
- GEG
1 stop19h 20m
KLM
Thu 5/1411:05 am
GEG
- BCN
1 stop15h 05m
KLM
Deal found 3/23![KLM logo]()
$1,031
This Delta deal was found by Cheapflights users on 3/23. 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.
Wed 4/86:20 am
BCN
- IDA
2 stops23h 56m
Delta
Sun 4/126:55 pm
IDA
- BCN
2 stops31h 20m
Delta
Deal found 3/23![Delta logo]()
$1,027
Last-minute flights from Spain to IdahoDiscover last-minute flight deals from Spain to Idaho. Data last updated March 27, 2026 and is based on user searches.
Discover last-minute flight deals from Spain to Idaho. Data last updated March 27, 2026 and is based on user searches.
This Flighttix deal was found by Cheapflights users on 3/24. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:05 am
MAD
- JAC
2 stops22h 48m
Lufthansa
Mon 4/132:35 pm
JAC
- MAD
2 stops33h 30m
Lufthansa
Deal found 3/24![Lufthansa logo]()
$902
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/93:25 pm
MAD
- JAC
2 stops29h 16m
American Airlines
Mon 4/131:25 pm
JAC
- MAD
2 stops20h 05m
American Airlines
Deal found 3/24![American Airlines logo]()
$905
This Flighttix deal was found by Cheapflights users on 3/24. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:55 pm
MAD
- JAC
1 stop28h 46m
Iberia
Mon 4/131:25 pm
JAC
- MAD
2 stops16h 05m
Iberia
Deal found 3/24![Iberia logo]()
$909
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Thu 4/98:00 am
BCN
- IDA
2 stops33h 53m
United Airlines
Mon 4/135:20 pm
IDA
- BCN
2 stops16h 35m
United Airlines
Deal found 3/24![United Airlines logo]()
$1,020
This Finnair deal was found by Cheapflights users on 3/25. 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 4/105:30 pm
MAD
- JAC
2 stops27h 10m
Multiple Airlines
Tue 4/141:25 pm
JAC
- MAD
1 stop17h 00m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$935
This Delta deal was found by Cheapflights users on 3/26. 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.
Fri 4/106:45 am
BIO
- BOI
2 stops17h 18m
Delta
Tue 4/143:44 pm
BOI
- BIO
2 stops17h 46m
Delta
Deal found 3/26![Delta logo]()
$1,014
This Delta deal was found by Cheapflights users on 3/27. 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.
Fri 4/101:05 pm
MAD
- BOI
2 stops17h 06m
Delta
Mon 4/133:44 pm
BOI
- MAD
2 stops19h 31m
Delta
Deal found 3/27![Delta logo]()
$1,021
This Flysmarter deal was found by Cheapflights users on 3/26. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:10 am
BCN
- GEG
2 stops19h 19m
Multiple Airlines
Wed 4/153:30 pm
GEG
- BCN
2 stops16h 40m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$1,013
This KLM deal was found by Cheapflights users on 3/27. 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.
Sat 4/116:45 am
BIO
- BOI
2 stops17h 18m
KLM
Wed 4/153:44 pm
BOI
- BIO
2 stops16h 46m
KLM
Deal found 3/27![KLM logo]()
$1,015
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Mon 4/136:30 pm
BCN
- BOI
2 stops28h 59m
Multiple Airlines
Sun 4/197:40 am
BOI
- BCN
1 stop24h 45m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$979
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/2212:55 pm
VLC
- BOI
2 stops35h 53m
United Airlines
Sun 4/265:29 pm
BOI
- VLC
2 stops40h 06m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,013
This United Airlines deal was found by Cheapflights users on 3/23. 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 4/225:55 am
MAD
- GEG
2 stops24h 16m
United Airlines
Sun 4/265:05 am
GEG
- MAD
2 stops18h 55m
United Airlines
Deal found 3/23![United Airlines logo]()
$1,017
One-way flights from Spain to IdahoSearch for one-way flight options from Spain to Idaho. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
Search for one-way flight options from Spain to Idaho. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 5/272:05 pm
BCN
- GEG
2 stops38h 50m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Fri 4/245:50 am
BCN
- BOI
3 stops46h 10m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/2211:20 pm
BCN
- GEG
3 stops32h 51m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
Tue 5/2610:15 pm
MAD
- GEG
3 stops47h 49m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 5/275:55 am
MAD
- GEG
3 stops40h 09m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$502
This eDestinos deal was found by Cheapflights users on 3/24. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:05 am
MAD
- GEG
2 stops23h 26m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$516
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
Mon 5/2510:55 pm
MAD
- GEG
3 stops48h 45m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$521
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Sat 6/132:00 pm
BCN
- BOI
2 stops30h 09m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$527
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 5/285:50 am
MAD
- GEG
3 stops24h 28m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Mon 4/610:55 pm
MAD
- BOI
3 stops33h 01m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$546
This Trip.com deal was found by Cheapflights users on 3/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/143:00 pm
BCN
- BOI
2 stops39h 07m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$551
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
Sun 5/245:45 am
MAD
- GEG
3 stops24h 33m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$614
Find flight deals from Spain to Idaho
Keep the following information in mind while searching for Spain to Idaho flight deals. Data was last updated March 27, 2026.
Round-trip from | $902 (Flighttix) |
|---|---|
One-way from | $430 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Spain to Idaho 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 March 27, 2026.
Use the filters below to find and compare flights from Spain to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MadridJackson
MAD - JAC
MADJAC
Madrid Barajas
Thu 4/9
1:00 pm-12:41 pm
1 stop31h 41m
Jackson Hole
Mon 4/13
1:25 pm-2:25 pm
1 stop17h 00m
$910
MadridJackson
MAD - JAC
MADJAC
Madrid Barajas
Fri 4/10
5:30 pm-12:40 pm
2 stops27h 10m
Jackson Hole
Tue 4/14
1:25 pm-2:25 pm
1 stop17h 00m
$935
BilbaoBoise
BIO - BOI
BIOBOI
Bilbao
Thu 9/3
12:00 pm-11:59 pm
2 stops19h 59m
Boise Air Term. Gowen Fld
Tue 9/8
3:30 pm-5:30 pm
2 stops18h 00m
$1,010
ValenciaBoise
VLC - BOI
VLCBOI
Valencia
Wed 4/22
12:55 pm-3:27 pm
2 stops34h 32m
Boise Air Term. Gowen Fld
Sun 4/26
5:00 am-5:35 pm
2 stops28h 35m
$1,013
BarcelonaSpokane
BCN - GEG
BCNGEG
Barcelona-El Prat
Sat 4/11
11:10 am-9:29 pm
2 stops19h 19m
Spokane
Wed 4/15
3:30 pm-5:10 pm
2 stops16h 40m
$1,013
BilbaoBoise
BIO - BOI
BIOBOI
Bilbao
Fri 4/10
6:45 am-4:03 pm
2 stops17h 18m
Boise Air Term. Gowen Fld
Tue 4/14
3:44 pm-5:30 pm
2 stops17h 46m
$1,014
BilbaoBoise
BIO - BOI
BIOBOI
Bilbao
Fri 4/10
12:00 pm-10:04 pm
2 stops18h 04m
Boise Air Term. Gowen Fld
Tue 4/14
2:18 pm-5:30 pm
2 stops19h 12m
$1,014
BilbaoBoise
BIO - BOI
BIOBOI
Bilbao
Sat 4/11
6:45 am-9:09 pm
2 stops22h 24m
Boise Air Term. Gowen Fld
Wed 4/15
5:34 am-11:15 am
2 stops21h 41m
$1,015
BarcelonaBoise
BCN - BOI
BCNBOI
Barcelona-El Prat
Thu 5/7
6:40 am-9:54 am
2 stops35h 14m
Boise Air Term. Gowen Fld
Sun 5/24
7:05 pm-2:20 pm
1 stop35h 15m
$1,016
MadridSpokane
MAD - GEG
MADGEG
Madrid Barajas
Wed 4/22
5:55 am-9:11 pm
2 stops24h 16m
Spokane
Sun 4/26
5:05 am-9:00 am
2 stops18h 55m
$1,017
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Spain to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Spain with our price prediction graph.
BCN-GEG
BCN-BOI
MAD-GEG
MAD-BOI
MAD-JAC
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 Spain to Idaho
ES0-USID
BCN-GEG
BCN-BOI
MAD-GEG
MAD-BOI
No data available for this route at this time. Please check back soon.
Related info for your journey
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