$357+ Cheap flights from Boise (BOI) to Spain
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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MAD
Aug 1 — Aug 81
Round-trip
1 adult, Economy
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Find cheap flights from Boise to Spain 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
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Cheapest flights from Boise to SpainExplore the most affordable flight options available from Boise to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2026.
Explore the most affordable flight options available from Boise to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2026.
This Air France deal was found by Cheapflights users on 6/30. 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 11/1010:38 am
BOI
- BIO
2 stops16h 52m
Multiple Airlines
Thu 11/198:30 am
BIO
- BOI
2 stops22h 11m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$720
This KAYAK deal was found by Cheapflights users on 6/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:50 pm
BOI
- BIO
2 stops20h 35m
Lufthansa
Tue 10/136:50 am
BIO
- BOI
2 stops18h 53m
Lufthansa
Deal found 6/29![Lufthansa logo]()
$736
This KAYAK deal was found by Cheapflights users on 6/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:59 pm
BOI
- BIO
2 stops20h 06m
Lufthansa
Thu 11/267:25 am
BIO
- BOI
2 stops21h 54m
Lufthansa
Deal found 6/30![Lufthansa logo]()
$738
This Air France deal was found by Cheapflights users on 6/30. 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 10/610:38 am
BOI
- BIO
2 stops22h 52m
Multiple Airlines
Wed 10/146:45 am
BIO
- BOI
2 stops19h 48m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$740
This United Airlines deal was found by Cheapflights users on 6/29. 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 9/296:50 pm
BOI
- BIO
2 stops20h 35m
United Airlines
Tue 10/136:50 am
BIO
- BOI
2 stops23h 43m
United Airlines
Deal found 6/29![United Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 6/30. 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 11/86:30 am
BOI
- BIO
2 stops27h 35m
United Airlines
Thu 11/127:25 am
BIO
- BOI
2 stops24h 21m
United Airlines
Deal found 6/30![United Airlines logo]()
$743
This Delta deal was found by Cheapflights users on 7/1. 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.
Wed 11/1810:38 am
BOI
- BIO
2 stops22h 47m
Delta
Fri 11/277:10 am
BIO
- BOI
2 stops17h 39m
Delta
Deal found 7/1![Delta logo]()
$747
This United Airlines deal was found by Cheapflights users on 6/30. 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 11/86:15 am
BOI
- VLC
2 stops27h 15m
United Airlines
Thu 11/126:10 am
VLC
- BOI
2 stops19h 44m
United Airlines
Deal found 6/30![United Airlines logo]()
$753
This United Airlines deal was found by Cheapflights users on 6/28. 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 9/286:50 pm
BOI
- BIO
2 stops20h 35m
United Airlines
Mon 10/1211:10 am
BIO
- BOI
2 stops44h 49m
United Airlines
Deal found 6/28![United Airlines logo]()
$761
This Ovago deal was found by Cheapflights users on 6/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:32 pm
BOI
- BCN
1 stop16h 43m
Lufthansa
Thu 11/263:10 pm
BCN
- BOI
1 stop15h 56m
Lufthansa
Deal found 6/29![Lufthansa logo]()
$764
This United Airlines deal was found by Cheapflights users on 6/29. 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 9/276:25 am
BOI
- MAD
2 stops16h 25m
United Airlines
Fri 10/912:45 pm
MAD
- BOI
2 stops36h 58m
United Airlines
Deal found 6/29![United Airlines logo]()
$776
This Expedia deal was found by Cheapflights users on 6/28. 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.
Sun 8/1610:52 am
BOI
- BCN
2 stops21h 08m
Multiple Airlines
Wed 8/2610:25 am
BCN
- BOI
2 stops18h 08m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$777
Best flights from Boise to SpainDiscover carefully curated flight deals from Boise to Spain that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2026.
Discover carefully curated flight deals from Boise to Spain that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2026.
This United Airlines deal was found by Cheapflights users on 6/29. 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 9/296:50 pm
BOI
- BIO
2 stops20h 35m
United Airlines
Tue 10/136:50 am
BIO
- BOI
2 stops23h 43m
United Airlines
Deal found 6/29![United Airlines logo]()
$741
This KLM deal was found by Cheapflights users on 6/30. 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 11/185:40 am
BOI
- BIO
2 stops21h 50m
Multiple Airlines
Fri 11/277:10 am
BIO
- BOI
2 stops23h 58m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$747
This Delta deal was found by Cheapflights users on 6/29. 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 9/272:11 pm
BOI
- MAD
1 stop14h 04m
Delta
Fri 10/99:50 am
MAD
- BOI
1 stop20h 32m
Delta
Deal found 6/29![Delta logo]()
$793
This KLM deal was found by Cheapflights users on 7/1. 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.
Wed 10/710:34 am
BOI
- AGP
2 stops22h 01m
KLM
Wed 1/66:55 pm
AGP
- BOI
2 stops29h 54m
KLM
Deal found 7/1![KLM logo]()
$866
This Air France deal was found by Cheapflights users on 6/28. 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 9/152:50 pm
BOI
- AGP
2 stops19h 50m
Air France
Sat 9/266:00 am
AGP
- BOI
2 stops24h 59m
Air France
Deal found 6/28![Air France logo]()
$888
This American Airlines deal was found by Cheapflights users on 6/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:19 pm
BOI
- MAD
2 stops16h 31m
American Airlines
Tue 8/1811:30 am
MAD
- BOI
2 stops18h 41m
American Airlines
Deal found 6/27![American Airlines logo]()
$914
This Scandinavian Airlines deal was found by Cheapflights users on 6/29. 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.
Sun 11/84:00 pm
BOI
- AGP
2 stops41h 40m
Scandinavian Airlines
Thu 11/126:30 pm
AGP
- BOI
2 stops36h 38m
Scandinavian Airlines
Deal found 6/29![Scandinavian Airlines logo]()
$958
This British Airways deal was found by Cheapflights users on 6/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:21 pm
BOI
- AGP
2 stops17h 29m
British Airways
Thu 11/123:20 pm
AGP
- BOI
2 stops36h 43m
British Airways
Deal found 6/28![British Airways logo]()
$965
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:25 am
BOI
- BIO
2 stops27h 30m
United Airlines
Fri 10/166:45 am
BIO
- BOI
2 stops22h 50m
United Airlines
Deal found 6/27![United Airlines logo]()
$741
This Air Canada deal was found by Cheapflights users on 6/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:25 am
BOI
- MAD
2 stops16h 25m
Multiple Airlines
Wed 10/71:30 pm
MAD
- BOI
3 stops28h 04m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$809
This United Airlines deal was found by Cheapflights users on 6/29. 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 11/186:59 pm
BOI
- BIO
2 stops20h 06m
United Airlines
Thu 11/267:25 am
BIO
- BOI
2 stops21h 54m
United Airlines
Deal found 6/29![United Airlines logo]()
$743
This Delta deal was found by Cheapflights users on 6/30. 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 9/278:55 am
BOI
- MAD
2 stops18h 25m
Delta
Sat 10/106:00 am
MAD
- BOI
2 stops24h 08m
Delta
Deal found 6/30![Delta logo]()
$848
This United Airlines deal was found by Cheapflights users on 6/30. 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 11/86:30 am
BOI
- BIO
2 stops27h 35m
United Airlines
Thu 11/127:25 am
BIO
- BOI
2 stops24h 21m
United Airlines
Deal found 6/30![United Airlines logo]()
$743
This British Airways deal was found by Cheapflights users on 6/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:55 pm
BOI
- BCN
2 stops21h 55m
Multiple Airlines
Mon 11/99:15 pm
BCN
- BOI
2 stops23h 23m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$843
This Delta deal was found by Cheapflights users on 7/1. 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 8/165:30 am
BOI
- MAD
2 stops16h 50m
Delta
Tue 9/16:00 am
MAD
- BOI
2 stops20h 48m
Delta
Deal found 7/1![Delta logo]()
$906
This United Airlines deal was found by Cheapflights users on 6/29. 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 11/88:22 am
BOI
- VLC
2 stops25h 08m
United Airlines
Thu 11/126:10 am
VLC
- BOI
2 stops24h 32m
United Airlines
Deal found 6/29![United Airlines logo]()
$753
This Delta deal was found by Cheapflights users on 7/2. 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.
Sun 8/910:35 am
BOI
- MAD
2 stops16h 45m
Delta
Tue 8/252:35 pm
MAD
- BOI
2 stops17h 24m
Delta
Deal found 7/2![Delta logo]()
$908
This Finnair deal was found by Cheapflights users on 6/28. 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.
Tue 8/116:44 am
BOI
- MAD
1 stop23h 41m
Multiple Airlines
Tue 8/2512:40 pm
MAD
- BOI
1 stop17h 31m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$913
This Delta deal was found by Cheapflights users on 7/2. 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.
Sun 8/911:10 pm
BOI
- BCN
1 stop29h 40m
Delta
Thu 8/2011:00 am
BCN
- BOI
1 stop18h 57m
Delta
Deal found 7/2![Delta logo]()
$911
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Fri 10/306:30 am
BOI
- BCN
2 stops19h 05m
United Airlines
Mon 11/91:50 pm
BCN
- BOI
2 stops41h 56m
United Airlines
Deal found 6/30![United Airlines logo]()
$845
This Delta deal was found by Cheapflights users on 6/30. 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 7/272:50 pm
BOI
- MAD
2 stops17h 55m
Delta
Thu 8/136:00 am
MAD
- BOI
2 stops25h 53m
Delta
Deal found 6/30![Delta logo]()
$918
This United Airlines deal was found by Cheapflights users on 6/29. 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 8/312:34 pm
BOI
- BCN
1 stop16h 41m
United Airlines
Wed 8/1912:15 pm
BCN
- BOI
2 stops35h 16m
United Airlines
Deal found 6/29![United Airlines logo]()
$860
This Scandinavian Airlines deal was found by Cheapflights users on 6/28. 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.
Tue 9/1510:34 am
BOI
- AGP
3 stops23h 46m
Scandinavian Airlines
Sat 9/269:45 pm
AGP
- BOI
2 stops28h 54m
Scandinavian Airlines
Deal found 6/28![Scandinavian Airlines logo]()
$1,501
This United Airlines deal was found by Cheapflights users on 6/29. 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 8/1010:35 am
BOI
- BCN
1 stop19h 45m
United Airlines
Fri 8/2112:15 pm
BCN
- BOI
2 stops37h 43m
United Airlines
Deal found 6/29![United Airlines logo]()
$860
This Delta deal was found by Cheapflights users on 6/30. 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 9/2811:10 pm
BOI
- MAD
1 stop29h 05m
Delta
Sun 10/119:50 am
MAD
- BOI
1 stop20h 32m
Delta
Deal found 6/30![Delta logo]()
$994
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Sun 8/92:41 pm
BOI
- BCN
2 stops23h 44m
United Airlines
Thu 8/201:15 pm
BCN
- BOI
2 stops36h 43m
United Airlines
Deal found 7/1![United Airlines logo]()
$873
This Ovago deal was found by Cheapflights users on 6/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/133:19 pm
BOI
- VLC
2 stops24h 56m
Multiple Airlines
Thu 8/206:35 am
VLC
- BOI
3 stops25h 09m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,425
This United Airlines deal was found by Cheapflights users on 6/28. 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 9/146:30 am
BOI
- AGP
3 stops17h 05m
United Airlines
Tue 9/159:35 am
AGP
- BOI
2 stops21h 28m
United Airlines
Deal found 6/28![United Airlines logo]()
$19,241
Last-minute flights from Boise to SpainDiscover last-minute flight deals from Boise to Spain. Data last updated July 2, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Spain. Data last updated July 2, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 6/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:00 pm
BOI
- BIO
2 stops25h 25m
Lufthansa
Tue 10/67:15 am
BIO
- BOI
2 stops20h 14m
Lufthansa
Deal found 6/29![Lufthansa logo]()
$798
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/35:46 pm
BOI
- BIO
2 stops32h 59m
United Airlines
Tue 10/67:15 am
BIO
- BOI
2 stops24h 44m
United Airlines
Deal found 7/1![United Airlines logo]()
$801
This Expedia deal was found by Cheapflights users on 6/28. 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 8/310:52 am
BOI
- BCN
2 stops27h 18m
Multiple Airlines
Wed 8/198:00 am
BCN
- BOI
2 stops20h 33m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$839
This United Airlines deal was found by Cheapflights users on 6/29. 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 8/312:34 pm
BOI
- BCN
1 stop16h 41m
United Airlines
Wed 8/1912:15 pm
BCN
- BOI
2 stops35h 16m
United Airlines
Deal found 6/29![United Airlines logo]()
$860
This Delta deal was found by Cheapflights users on 7/2. 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.
Wed 8/58:59 am
BOI
- BIO
2 stops23h 31m
Delta
Wed 8/196:45 am
BIO
- BOI
2 stops23h 45m
Delta
Deal found 7/2![Delta logo]()
$834
This CheapOair deal was found by Cheapflights users on 6/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/910:52 am
BOI
- BCN
2 stops27h 18m
Multiple Airlines
Thu 8/2010:15 am
BCN
- BOI
2 stops18h 18m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$838
This CheapOair deal was found by Cheapflights users on 7/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:52 am
BOI
- BCN
2 stops27h 18m
Multiple Airlines
Fri 8/218:00 am
BCN
- BOI
2 stops22h 27m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$820
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/1010:35 am
BOI
- BCN
1 stop19h 45m
United Airlines
Fri 8/2112:15 pm
BCN
- BOI
2 stops37h 43m
United Airlines
Deal found 7/1![United Airlines logo]()
$861
This United Airlines deal was found by Cheapflights users on 6/28. 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 8/128:23 am
BOI
- BIO
2 stops25h 32m
United Airlines
Wed 8/192:10 pm
BIO
- BOI
2 stops39h 14m
United Airlines
Deal found 6/28![United Airlines logo]()
$852
This KLM deal was found by Cheapflights users on 6/30. 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 8/141:59 pm
BOI
- BIO
2 stops17h 56m
KLM
Fri 8/216:45 am
BIO
- BOI
2 stops18h 34m
KLM
Deal found 6/30![KLM logo]()
$860
This Expedia deal was found by Cheapflights users on 6/28. 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.
Sun 8/1610:52 am
BOI
- BCN
2 stops21h 08m
Multiple Airlines
Wed 8/2610:25 am
BCN
- BOI
2 stops18h 08m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$777
This Expedia deal was found by Cheapflights users on 6/28. 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 8/312:17 pm
BOI
- MAD
2 stops23h 38m
Multiple Airlines
Wed 9/307:00 am
MAD
- BOI
2 stops21h 35m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$825
One-way flights from Boise to SpainSearch for one-way flight options from Boise to Spain. Find affordable one-way fares based on user searches. Data last updated July 2, 2026.
Search for one-way flight options from Boise to Spain. Find affordable one-way fares based on user searches. Data last updated July 2, 2026.
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Mon 10/122:02 pm
BOI
- BCN
2 stops18h 23m
American Airlines
Deal found 7/2![American Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 6/28. 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 10/122:51 pm
BOI
- BCN
1 stop15h 29m
United Airlines
Deal found 6/28![United Airlines logo]()
$360
This Expedia deal was found by Cheapflights users on 6/28. 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.
Sat 9/266:50 pm
BOI
- BCN
2 stops29h 10m
Air Canada
Deal found 6/28![Air Canada logo]()
$364
This Expedia deal was found by Cheapflights users on 6/28. 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.
Wed 9/307:02 am
BOI
- MAD
1 stop18h 03m
Iberia
Deal found 6/28![Iberia logo]()
$370
This Expedia deal was found by Cheapflights users on 6/28. 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.
Sat 9/261:50 pm
BOI
- BCN
1 stop36h 20m
Iberia
Deal found 6/28![Iberia logo]()
$372
This Delta deal was found by Cheapflights users on 6/28. 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 9/303:28 pm
BOI
- MAD
2 stops19h 47m
Delta
Deal found 6/28![Delta logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/297:48 pm
BOI
- BCN
3 stops41h 17m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 7/1. 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 10/293:24 pm
BOI
- BCN
2 stops17h 41m
American Airlines
Deal found 7/1![American Airlines logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 9/612:24 pm
BOI
- BCN
3 stops19h 51m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/284:27 pm
BOI
- MAD
3 stops24h 48m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 7/306:01 pm
BOI
- BCN
3 stops56h 59m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$451
This American Airlines deal was found by Cheapflights users on 6/30. 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 7/293:54 pm
BOI
- BCN
2 stops18h 41m
American Airlines
Deal found 6/30![American Airlines logo]()
$460
Find flight deals from Boise to Spain
Keep the following information in mind while searching for Boise to Spain flight deals. Data was last updated July 2, 2026.
Round-trip from | $720 (Air France) |
|---|---|
One-way from | $357 (American Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $1,159 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise to Spain 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 July 2, 2026.
Use the filters below to find and compare flights from Boise to Spain that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseBilbao
BOI - BIO
BOIBIO
Boise Air Term. Gowen Fld
Tue 9/29
6:50 pm-11:25 pm
2 stops20h 35m
Bilbao
Tue 10/13
6:50 am-10:33 pm
2 stops23h 43m
$741
BoiseBilbao
BOI - BIO
BOIBIO
Boise Air Term. Gowen Fld
Tue 10/6
6:25 am-5:55 pm
2 stops27h 30m
Bilbao
Fri 10/16
6:45 am-9:35 pm
2 stops22h 50m
$741
BoiseBilbao
BOI - BIO
BOIBIO
Boise Air Term. Gowen Fld
Wed 11/18
6:59 pm-11:05 pm
2 stops20h 06m
Bilbao
Thu 11/26
7:25 am-9:19 pm
2 stops21h 54m
$743
BoiseBilbao
BOI - BIO
BOIBIO
Boise Air Term. Gowen Fld
Sun 11/8
6:30 am-6:05 pm
2 stops27h 35m
Bilbao
Thu 11/12
7:25 am-11:46 pm
2 stops24h 21m
$743
BoiseBilbao
BOI - BIO
BOIBIO
Boise Air Term. Gowen Fld
Wed 11/18
5:40 am-11:30 am
2 stops21h 50m
Bilbao
Fri 11/27
7:10 am-11:08 pm
2 stops23h 58m
$747
BoiseValencia
BOI - VLC
BOIVLC
Boise Air Term. Gowen Fld
Sun 11/8
8:22 am-5:30 pm
2 stops25h 08m
Valencia
Thu 11/12
6:10 am-10:42 pm
2 stops24h 32m
$753
BoiseMadrid
BOI - MAD
BOIMAD
Boise Air Term. Gowen Fld
Sun 9/27
2:11 pm-12:15 pm
1 stop14h 04m
Madrid Barajas
Fri 10/9
9:50 am-10:22 pm
1 stop20h 32m
$793
BoiseMadrid
BOI - MAD
BOIMAD
Boise Air Term. Gowen Fld
Tue 9/29
6:25 am-6:50 am
2 stops16h 25m
Madrid Barajas
Wed 10/7
1:30 pm-9:34 am
3 stops28h 04m
$809
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Fri 10/30
2:55 pm-7:50 pm
2 stops21h 55m
Barcelona-El Prat
Mon 11/9
9:15 pm-12:38 pm
2 stops23h 23m
$843
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Fri 10/30
6:30 am-8:35 am
2 stops19h 05m
Barcelona-El Prat
Mon 11/9
1:50 pm-11:46 pm
2 stops41h 56m
$845
Showing 1-10 of 39 resultsSorted by cheapest first
Best time to book a flight from Boise to Spain
Have a flexible travel schedule? Discover the best time to fly to Spain from Boise with our price prediction graph.
BOI-BCN
BOI-MAD
BOI-BIO
BOI-VLC
BOI-AGP
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 Boise to Spain
BOI-ES0
BOI-BCN
BOI-MAD
BOI-BIO
BOI-VLC
What is the cheapest month to book a flight from Boise to Spain?
Currently, February is the cheapest month in which you can book a flight from Boise to Spain (average of $467). Flying from Boise to Spain in June is currently the most expensive (average of $1,000). 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.
Reviews of airlines servicing Spain
Get insights into the airlines that provide service to Spain. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Spain. Reviews last updated July 2, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Boise to Spain. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Boise to Spain. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Boise to Spain
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Complete your trip
Complete your trip to Spain by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boise to Spain by cabin class
Find flights from Boise to Spain, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boise and Spain flights
Browse other Boise and Spain flight options. Last updated on July 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Boise to Spain flights
Consider these flights traveling from Boise to Spain.
Fly to Spain regions
Consider these flights traveling to Spain regions.
Top 5 airlines flying from Boise to Spain
Discover the top 5 airlines that operate flights from Boise to Spain. 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 July 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$483 | Average$905 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$493 | Average$929 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$541 | Average$998 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$599 | Average$935 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$856 | Average$869 | FlexibilityNo cancel fee | On-time67% |