$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
Jun 9 — Jun 161
Round-trip
1 adult, Economy
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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 May 10, 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 May 10, 2026.
This United Airlines deal was found by Cheapflights users on 5/7. 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 11/185:00 am
BOI
- BIO
2 stops29h 05m
United Airlines
Fri 11/276:45 am
BIO
- BOI
2 stops19h 10m
United Airlines
Deal found 5/7![United Airlines logo]()
$743
This United Airlines deal was found by Cheapflights users on 5/8. 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 11/184:05 pm
BOI
- BIO
2 stops23h 00m
United Airlines
Thu 11/266:45 am
BIO
- BOI
2 stops22h 30m
United Airlines
Deal found 5/8![United Airlines logo]()
$744
This Delta deal was found by Cheapflights users on 5/8. 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 9/292:45 pm
BOI
- BIO
2 stops18h 45m
Delta
Tue 10/1310:30 am
BIO
- BOI
2 stops20h 38m
Delta
Deal found 5/8![Delta logo]()
$749
This United Airlines deal was found by Cheapflights users on 5/8. 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 9/295:00 am
BOI
- BIO
2 stops34h 05m
United Airlines
Tue 10/136:50 am
BIO
- BOI
2 stops22h 41m
United Airlines
Deal found 5/8![United Airlines logo]()
$756
This United Airlines deal was found by Cheapflights users on 5/6. 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 11/85:00 am
BOI
- BIO
2 stops34h 05m
United Airlines
Tue 11/1011:35 am
BIO
- BOI
2 stops43h 30m
United Airlines
Deal found 5/6![United Airlines logo]()
$761
This United Airlines deal was found by Cheapflights users on 5/7. 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 9/287:05 pm
BOI
- BIO
2 stops20h 20m
United Airlines
Mon 10/122:10 pm
BIO
- BOI
2 stops41h 42m
United Airlines
Deal found 5/7![United Airlines logo]()
$764
This Finnair deal was found by Cheapflights users on 5/6. 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 9/221:18 pm
BOI
- BCN
1 stop13h 17m
Finnair
Tue 9/2910:45 am
BCN
- BOI
1 stop19h 32m
Finnair
Deal found 5/6![Finnair logo]()
$769
This American Airlines deal was found by Cheapflights users on 5/5. 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.
Sun 10/112:57 pm
BOI
- BCN
2 stops19h 28m
American Airlines
Tue 10/2010:15 am
BCN
- BOI
2 stops20h 02m
American Airlines
Deal found 5/5![American Airlines logo]()
$782
This Air France deal was found by Cheapflights users on 5/6. 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.
Thu 11/261:43 pm
BOI
- AGP
2 stops19h 12m
Multiple Airlines
Wed 12/24:05 pm
AGP
- BOI
2 stops34h 28m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$793
This Iberia deal was found by Cheapflights users on 5/7. 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.
Tue 9/292:55 pm
BOI
- MAD
1 stop15h 30m
Iberia
Wed 10/712:20 pm
MAD
- BOI
1 stop17h 57m
Iberia
Deal found 5/7![Iberia logo]()
$794
This Orbitz deal was found by Cheapflights users on 5/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:44 am
BOI
- BCN
1 stop19h 26m
Iberia
Mon 10/192:50 pm
BCN
- BOI
2 stops62h 15m
Iberia
Deal found 5/5![Iberia logo]()
$797
This Finnair deal was found by Cheapflights users on 5/9. 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 9/296:44 am
BOI
- MAD
1 stop23h 41m
Multiple Airlines
Wed 10/147:50 pm
MAD
- BOI
2 stops24h 42m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$799
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 May 10, 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 May 10, 2026.
This Delta deal was found by Cheapflights users on 5/5. 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 9/292:45 pm
BOI
- BIO
2 stops18h 45m
Delta
Tue 10/137:10 am
BIO
- BOI
2 stops23h 58m
Delta
Deal found 5/5![Delta logo]()
$749
This United Airlines deal was found by Cheapflights users on 5/5. 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 9/295:00 am
BOI
- BIO
2 stops34h 05m
United Airlines
Tue 10/136:50 am
BIO
- BOI
2 stops25h 02m
United Airlines
Deal found 5/5![United Airlines logo]()
$756
This KLM deal was found by Cheapflights users on 5/5. 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 9/284:05 pm
BOI
- BIO
2 stops16h 25m
KLM
Mon 10/1210:30 am
BIO
- BOI
2 stops20h 38m
KLM
Deal found 5/5![KLM logo]()
$804
This Iberia deal was found by Cheapflights users on 5/10. 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.
Sun 8/96:44 am
BOI
- BCN
1 stop19h 26m
Iberia
Thu 8/2010:45 am
BCN
- BOI
1 stop18h 55m
Iberia
Deal found 5/10![Iberia logo]()
$837
This KLM deal was found by Cheapflights users on 5/6. 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 9/228:40 am
BOI
- BCN
1 stop18h 30m
Multiple Airlines
Tue 9/296:10 am
BCN
- BOI
2 stops17h 28m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$846
This KAYAK deal was found by Cheapflights users on 5/7. 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 6/36:07 pm
BOI
- VLC
3 stops22h 08m
British Airways
Tue 8/48:30 pm
VLC
- BOI
2 stops34h 25m
British Airways
Deal found 5/7![British Airways logo]()
$1,440
This United Airlines deal was found by Cheapflights users on 5/7. 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 9/287:05 pm
BOI
- BIO
2 stops20h 20m
United Airlines
Mon 10/122:10 pm
BIO
- BOI
2 stops41h 42m
United Airlines
Deal found 5/7![United Airlines logo]()
$764
This Scandinavian Airlines deal was found by Cheapflights users on 5/6. 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 9/2712:42 pm
BOI
- AGP
2 stops23h 38m
Scandinavian Airlines
Fri 10/99:05 pm
AGP
- BOI
3 stops29h 28m
Scandinavian Airlines
Deal found 5/6![Scandinavian Airlines logo]()
$1,613
This Expedia deal was found by Cheapflights users on 5/6. 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 9/53:25 pm
BOI
- AGP
2 stops39h 25m
KLM
Sat 9/1211:00 pm
AGP
- BOI
2 stops32h 04m
KLM
Deal found 5/6![KLM logo]()
$817
This Expedia deal was found by Cheapflights users on 5/7. 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 6/2112:30 pm
BOI
- SCQ
2 stops44h 20m
Lufthansa
Sun 6/286:10 pm
SCQ
- BOI
2 stops35h 19m
Lufthansa
Deal found 5/7![Lufthansa logo]()
$1,679
This Finnair deal was found by Cheapflights users on 5/7. 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 8/2511:45 am
MAD
- BOI
2 stops18h 35m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$882
This United Airlines deal was found by Cheapflights users on 5/7. 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 9/298:15 am
BOI
- MAD
2 stops41h 35m
United Airlines
Wed 10/711:15 am
MAD
- BOI
2 stops20h 37m
United Airlines
Deal found 5/7![United Airlines logo]()
$861
This Delta deal was found by Cheapflights users on 5/10. 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 7/76:51 am
BOI
- BCN
1 stop20h 19m
Delta
Tue 7/149:20 am
BCN
- BOI
2 stops22h 26m
Delta
Deal found 5/10![Delta logo]()
$981
This Finnair deal was found by Cheapflights users on 5/8. 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.
Mon 7/273:10 pm
BOI
- MAD
1 stop14h 20m
Multiple Airlines
Thu 8/133:55 pm
MAD
- BOI
1 stop27h 32m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$920
This KLM deal was found by Cheapflights users on 5/6. 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 8/612:20 pm
BOI
- BCN
1 stop14h 50m
KLM
Fri 8/211:20 pm
BCN
- BOI
1 stop18h 33m
KLM
Deal found 5/6![KLM logo]()
$954
This United Airlines deal was found by Cheapflights users on 5/5. 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 10/115:00 am
BOI
- MAD
2 stops19h 50m
United Airlines
Mon 10/1912:45 pm
MAD
- BOI
2 stops37h 13m
United Airlines
Deal found 5/5![United Airlines logo]()
$886
This Finnair deal was found by Cheapflights users on 5/8. 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 9/86:44 am
BOI
- MAD
1 stop23h 41m
Multiple Airlines
Sun 10/183:55 pm
MAD
- BOI
1 stop27h 31m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$962
This KLM deal was found by Cheapflights users on 5/8. 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 7/710:35 am
BOI
- BCN
1 stop16h 35m
KLM
Wed 7/151:20 pm
BCN
- BOI
1 stop17h 08m
KLM
Deal found 5/8![KLM logo]()
$976
This United Airlines deal was found by Cheapflights users on 5/7. 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 7/277:05 pm
BOI
- MAD
2 stops51h 45m
United Airlines
Thu 8/1312:45 pm
MAD
- BOI
2 stops43h 05m
United Airlines
Deal found 5/7![United Airlines logo]()
$903
This Delta deal was found by Cheapflights users on 5/7. 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 6/228:42 am
BOI
- VLC
2 stops23h 33m
Delta
Mon 6/296:35 am
VLC
- BOI
2 stops23h 53m
Delta
Deal found 5/7![Delta logo]()
$1,113
This Finnair deal was found by Cheapflights users on 5/9. 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.
Sat 9/512:17 pm
BOI
- MAD
1 stop18h 08m
Multiple Airlines
Sun 9/133:55 pm
MAD
- BOI
1 stop27h 31m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$995
This United Airlines deal was found by Cheapflights users on 5/5. 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 9/95:00 am
BOI
- BCN
2 stops19h 00m
United Airlines
Sun 9/1312:15 pm
BCN
- BOI
2 stops36h 33m
United Airlines
Deal found 5/5![United Airlines logo]()
$915
This KLM deal was found by Cheapflights users on 5/10. 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 6/242:50 pm
BOI
- VLC
2 stops15h 55m
KLM
Wed 7/16:35 am
VLC
- BOI
2 stops22h 20m
KLM
Deal found 5/10![KLM logo]()
$1,048
This United Airlines deal was found by Cheapflights users on 5/5. 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 9/85:00 am
BOI
- BCN
2 stops19h 00m
United Airlines
Sun 9/1312:15 pm
BCN
- BOI
2 stops36h 33m
United Airlines
Deal found 5/5![United Airlines logo]()
$915
This Finnair deal was found by Cheapflights users on 5/5. 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.
Sun 8/306:44 am
BOI
- MAD
1 stop23h 41m
Multiple Airlines
Sun 9/277:50 pm
MAD
- BOI
2 stops24h 41m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,010
This United Airlines deal was found by Cheapflights users on 5/5. 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 9/16:30 am
BOI
- BCN
2 stops17h 30m
United Airlines
Sat 9/1212:15 pm
BCN
- BOI
2 stops30h 45m
United Airlines
Deal found 5/5![United Airlines logo]()
$938
This United Airlines deal was found by Cheapflights users on 5/10. 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 8/62:41 pm
BOI
- BCN
2 stops23h 44m
United Airlines
Fri 8/213:15 pm
BCN
- BOI
1 stop15h 38m
United Airlines
Deal found 5/10![United Airlines logo]()
$939
This United Airlines deal was found by Cheapflights users on 5/9. 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 9/57:05 pm
BOI
- MAD
2 stops27h 45m
United Airlines
Sun 9/1312:45 pm
MAD
- BOI
2 stops43h 05m
United Airlines
Deal found 5/9![United Airlines logo]()
$948
This United Airlines deal was found by Cheapflights users on 5/8. 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 9/85:44 pm
BOI
- MAD
2 stops30h 21m
United Airlines
Sun 10/1812:45 pm
MAD
- BOI
2 stops43h 07m
United Airlines
Deal found 5/8![United Airlines logo]()
$949
This United Airlines deal was found by Cheapflights users on 5/7. 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 7/77:05 pm
BOI
- BCN
2 stops28h 55m
United Airlines
Tue 7/1412:15 pm
BCN
- BOI
2 stops41h 14m
United Airlines
Deal found 5/7![United Airlines logo]()
$951
Last-minute flights from Boise to SpainDiscover last-minute flight deals from Boise to Spain. Data last updated May 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Spain. Data last updated May 10, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 5/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:02 am
BOI
- BCN
2 stops29h 08m
Multiple Airlines
Tue 5/128:00 am
BCN
- BOI
2 stops23h 02m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$849
This CheapOair deal was found by Cheapflights users on 5/8. 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 5/171:59 pm
BOI
- BCN
2 stops18h 01m
Multiple Airlines
Tue 5/2610:25 am
BCN
- BOI
2 stops21h 33m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,007
This United Airlines deal was found by Cheapflights users on 5/8. 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 5/176:58 pm
BOI
- BCN
1 stop35h 22m
United Airlines
Tue 5/2612:15 pm
BCN
- BOI
2 stops41h 20m
United Airlines
Deal found 5/8![United Airlines logo]()
$1,050
This Delta deal was found by Cheapflights users on 5/5. 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 6/210:39 am
BOI
- BIO
2 stops22h 51m
Delta
Tue 6/912:00 pm
BIO
- BOI
2 stops19h 55m
Delta
Deal found 5/5![Delta logo]()
$953
This CheapOair deal was found by Cheapflights users on 5/9. 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.
Tue 6/21:59 pm
BOI
- BCN
2 stops24h 11m
Multiple Airlines
Sat 6/138:00 am
BCN
- BOI
2 stops23h 48m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,120
This Expedia deal was found by Cheapflights users on 5/8. 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 6/31:59 pm
BOI
- MAD
2 stops23h 56m
Multiple Airlines
Thu 6/117:05 am
MAD
- BOI
2 stops24h 59m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$922
This Expedia deal was found by Cheapflights users on 5/9. 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 6/31:59 pm
BOI
- MAD
2 stops23h 56m
Multiple Airlines
Tue 6/97:05 am
MAD
- BOI
2 stops24h 53m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,140
This Delta deal was found by Cheapflights users on 5/9. 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 6/83:31 pm
BOI
- BIO
2 stops16h 59m
Delta
Sun 6/146:45 am
BIO
- BOI
2 stops25h 02m
Delta
Deal found 5/9![Delta logo]()
$1,018
This Expedia deal was found by Cheapflights users on 5/9. 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.
Tue 6/911:56 am
BOI
- MAD
2 stops25h 59m
Multiple Airlines
Wed 6/177:05 am
MAD
- BOI
2 stops23h 02m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,105
This CheapOair deal was found by Cheapflights users on 5/9. 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.
Tue 6/91:59 pm
BOI
- BCN
2 stops24h 11m
Multiple Airlines
Wed 6/248:00 am
BCN
- BOI
2 stops22h 07m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$1,126
This Delta deal was found by Cheapflights users on 5/7. 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 6/228:42 am
BOI
- VLC
2 stops23h 33m
Delta
Mon 6/296:35 am
VLC
- BOI
2 stops23h 53m
Delta
Deal found 5/7![Delta logo]()
$1,113
This KLM deal was found by Cheapflights users on 5/10. 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 6/242:50 pm
BOI
- VLC
2 stops15h 55m
KLM
Wed 7/16:35 am
VLC
- BOI
2 stops22h 20m
KLM
Deal found 5/10![KLM logo]()
$1,048
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 May 10, 2026.
Search for one-way flight options from Boise to Spain. Find affordable one-way fares based on user searches. Data last updated May 10, 2026.
This American Airlines deal was found by Cheapflights users on 5/6. 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 10/124:17 pm
BOI
- BCN
2 stops17h 18m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$357
This lol.travel deal was found by Cheapflights users on 5/8. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:18 pm
BOI
- MAD
1 stop16h 12m
Finnair
Deal found 5/8![Finnair logo]()
$357
This American Airlines deal was found by Cheapflights users on 5/6. 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 10/1212:10 pm
BOI
- BCN
1 stop14h 00m
American Airlines
Deal found 5/6![American Airlines logo]()
$360
This American Airlines deal was found by Cheapflights users on 5/8. 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 11/41:40 pm
BOI
- MAD
2 stops19h 15m
American Airlines
Deal found 5/8![American Airlines logo]()
$363
This KLM deal was found by Cheapflights users on 5/8. 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 10/131:43 pm
BOI
- BCN
1 stop15h 07m
KLM
Deal found 5/8![KLM logo]()
$392
This Delta deal was found by Cheapflights users on 5/8. 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 9/296:00 am
BOI
- MAD
2 stops16h 20m
Delta
Deal found 5/8![Delta logo]()
$400
This Air Canada deal was found by Cheapflights users on 5/8. 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 10/37:05 pm
BOI
- MAD
2 stops27h 45m
Air Canada
Deal found 5/8![Air Canada logo]()
$403
This Delta deal was found by Cheapflights users on 5/8. 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 9/2711:30 pm
BOI
- MAD
1 stop28h 45m
Delta
Deal found 5/8![Delta logo]()
$405
This Air Canada deal was found by Cheapflights users on 5/8. 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.
Fri 10/27:05 pm
BOI
- MAD
2 stops51h 45m
Air Canada
Deal found 5/8![Air Canada logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 9/274:17 pm
BOI
- MAD
3 stops46h 43m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 5/8. 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 10/16:00 am
BOI
- MAD
2 stops16h 20m
Delta
Deal found 5/8![Delta logo]()
$450
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 10/11:18 pm
BOI
- MAD
1 stop16h 12m
Finnair
Deal found 5/8![Finnair logo]()
$451
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 May 10, 2026.
Round-trip from | $749 (Delta) |
|---|---|
One-way from | $357 (American Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $1,210 |
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 May 10, 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
2:45 pm-5:30 pm
2 stops18h 45m
Bilbao
Tue 10/13
7:10 am-11:08 pm
2 stops23h 58m
$749
BoiseBilbao
BOI - BIO
BOIBIO
Boise Air Term. Gowen Fld
Tue 9/29
5:00 am-11:05 pm
2 stops34h 05m
Bilbao
Tue 10/13
6:50 am-11:52 pm
2 stops25h 02m
$756
BoiseBilbao
BOI - BIO
BOIBIO
Boise Air Term. Gowen Fld
Mon 9/28
7:05 pm-11:25 pm
2 stops20h 20m
Bilbao
Mon 10/12
2:10 pm-11:52 pm
2 stops41h 42m
$764
BoiseBilbao
BOI - BIO
BOIBIO
Boise Air Term. Gowen Fld
Mon 9/28
4:05 pm-4:30 pm
2 stops16h 25m
Bilbao
Mon 10/12
10:30 am-11:08 pm
2 stops20h 38m
$804
BoiseMálaga
BOI - AGP
BOIAGP
Boise Air Term. Gowen Fld
Sat 9/5
3:25 pm-2:50 pm
2 stops39h 25m
Malaga
Sat 9/12
11:00 pm-11:04 pm
2 stops32h 04m
$817
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Sun 8/9
6:44 am-10:10 am
1 stop19h 26m
Barcelona-El Prat
Thu 8/20
10:45 am-9:40 pm
1 stop18h 55m
$837
BoiseBarcelona
BOI - BCN
BOIBCN
Boise Air Term. Gowen Fld
Tue 9/22
8:40 am-11:10 am
1 stop18h 30m
Barcelona-El Prat
Tue 9/29
6:10 am-3:38 pm
2 stops17h 28m
$846
BoiseMadrid
BOI - MAD
BOIMAD
Boise Air Term. Gowen Fld
Tue 9/29
8:15 am-9:50 am
2 stops41h 35m
Madrid Barajas
Wed 10/7
11:15 am-11:52 pm
2 stops20h 37m
$861
BoiseMadrid
BOI - MAD
BOIMAD
Boise Air Term. Gowen Fld
Tue 8/11
6:44 am-2:25 pm
1 stop23h 41m
Madrid Barajas
Tue 8/25
11:45 am-10:20 pm
2 stops18h 35m
$882
BoiseMadrid
BOI - MAD
BOIMAD
Boise Air Term. Gowen Fld
Sun 10/11
5:00 am-8:50 am
2 stops19h 50m
Madrid Barajas
Mon 10/19
12:45 pm-5:58 pm
2 stops37h 13m
$886
Showing 1-10 of 54 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-BIO
BOI-BCN
BOI-AGP
BOI-MAD
BOI-VLC
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-BIO
BOI-BCN
BOI-AGP
BOI-MAD
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 $776). 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 May 10, 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.
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Overall
7.9
Entertainment
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
See prices for flight routes from nearby airports that may be better suited for you.
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 May 10, 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 May 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$483 | Average$782 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$493 | Average$711 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$528 | Average$869 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$541 | Average$974 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$799 | Average$865 | FlexibilityNo cancel fee | On-time67% |