$113+ Cheap flights from Boston (BOS) 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BOI
Sep 13 — Sep 201
Round-trip
1 adult, Economy
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Cheapest flights from Boston to IdahoExplore the most affordable flight options available from Boston to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.
Explore the most affordable flight options available from Boston to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:00 am -
1 stop7h 45m
Mon 11/26:35 am -
1 stop9h 15m
Deal found 8/11![Southwest logo]()
$226
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 10/145:17 am -
1 stop10h 34m
Wed 10/2112:14 pm -
1 stop8h 36m
Deal found 8/12![American Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:40 am -
1 stop11h 50m
Sat 9/121:50 pm -
1 stop8h 40m
Deal found 8/12![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/58:15 am -
1 stop7h 27m
Sat 9/122:11 pm -
1 stop9h 06m
Deal found 8/12![Delta logo]()
$233
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/56:01 am -
1 stop7h 27m
Sat 9/1212:30 pm -
2 stops9h 29m
Deal found 8/13![United Airlines logo]()
$238
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:40 am -
1 stop7h 45m
Mon 9/2812:20 pm -
1 stop9h 10m
Deal found 8/12![Southwest logo]()
$240
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/56:01 am -
1 stop8h 37m
Sat 9/121:37 pm -
1 stop7h 15m
Deal found 8/13![United Airlines logo]()
$241
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/2611:44 am -
1 stop10h 31m
Mon 9/2810:50 pm -
1 stop9h 18m
Deal found 8/11![Delta logo]()
$249
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/316:01 am -
1 stop7h 27m
Thu 9/1012:28 pm -
1 stop9h 02m
Deal found 8/11![United Airlines logo]()
$254
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/116:20 am -
1 stop10h 24m
Tue 9/1512:17 pm -
1 stop10h 12m
Deal found 8/12![Delta logo]()
$265
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/16:05 am -
1 stop9h 19m
Sat 9/52:05 pm -
1 stop6h 53m
Deal found 8/13![Delta logo]()
$266
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/122:28 pm -
2 stops10h 25m
Sat 9/1912:28 pm -
1 stop7h 31m
Deal found 8/13![United Airlines logo]()
$273
Best flights from Boston to IdahoDiscover carefully curated flight deals from Boston to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
Discover carefully curated flight deals from Boston to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/58:15 am -
1 stop7h 27m
Sat 9/122:11 pm -
1 stop9h 06m
Deal found 8/13![Delta logo]()
$233
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:40 am -
1 stop11h 55m
Mon 9/2812:20 pm -
1 stop9h 10m
Deal found 8/11![Southwest logo]()
$246
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 9/52:00 pm -
1 stop9h 24m
Sat 9/1212:30 pm -
1 stop7h 29m
Deal found 8/14![United Airlines logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:51 am -
1 stop16h 49m
Sat 10/3112:42 pm -
1 stop8h 17m
Deal found 8/10![Alaska Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/197:55 am -
1 stop9h 21m
Mon 9/217:19 pm -
1 stop10h 21m
Deal found 8/13![Delta logo]()
$233
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/117:55 am -
1 stop11h 24m
Tue 9/226:44 pm -
1 stop9h 46m
Deal found 8/11![Delta logo]()
$265
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/116:20 am -
1 stop10h 24m
Tue 9/1512:17 pm -
1 stop10h 12m
Deal found 8/12![Delta logo]()
$265
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:10 pm -
2 stops11h 40m
Sun 11/85:25 am -
1 stop8h 00m
Deal found 8/12![Southwest logo]()
$327
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/16:05 am -
1 stop9h 19m
Sat 9/52:05 pm -
1 stop6h 53m
Deal found 8/13![Delta logo]()
$266
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/116:00 am -
2 stops11h 31m
Tue 9/227:05 pm -
2 stops11h 12m
Deal found 8/11![United Airlines logo]()
$378
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:00 am -
2 stops16h 25m
Tue 9/158:25 pm -
1 stop7h 44m
Deal found 8/10![Alaska Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/117:55 am -
1 stop10h 19m
Mon 9/145:14 pm -
1 stop10h 16m
Deal found 8/13![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/172:15 pm -
2 stops11h 30m
Mon 9/2112:20 pm -
1 stop9h 10m
Deal found 8/13![Southwest logo]()
$393
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:00 am -
2 stops16h 25m
Tue 9/228:25 pm -
1 stop7h 44m
Deal found 8/10![Alaska Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 10/2010:51 am -
2 stops12h 34m
Sat 10/312:34 pm -
1 stop7h 16m
Deal found 8/10![United Airlines logo]()
$434
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:03 am -
2 stops14h 41m
Sun 11/84:39 pm -
1 stop10h 01m
Deal found 8/10![Alaska Airlines logo]()
$431
This Delta deal was found by Cheapflights users on 8/10. 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.
Fri 8/285:51 am -
1 stop10h 06m
Mon 8/3112:36 pm -
1 stop9h 49m
Deal found 8/10![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/251:55 pm -
1 stop9h 57m
Mon 9/283:19 pm -
2 stops12h 41m
Deal found 8/13![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 10/139:51 am -
2 stops13h 34m
Tue 10/207:00 am -
2 stops10h 22m
Deal found 8/13![United Airlines logo]()
$460
This Alaska Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:51 am -
2 stops17h 08m
Sat 10/103:57 pm -
1 stop12h 15m
Deal found 8/11![Alaska Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/177:55 am -
1 stop11h 24m
Sun 9/206:44 pm -
1 stop9h 46m
Deal found 8/13![Delta logo]()
$356
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Wed 10/710:51 am -
2 stops12h 34m
Sat 10/109:06 am -
1 stop9h 51m
Deal found 8/10![United Airlines logo]()
$472
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 10/205:50 am -
1 stop8h 45m
Sun 10/257:13 pm -
1 stop10h 22m
Deal found 8/14![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 11/36:00 am -
2 stops11h 38m
Sat 11/710:35 am -
1 stop7h 04m
Deal found 8/10![United Airlines logo]()
$494
This Booking.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:59 pm -
2 stops19h 25m
Fri 9/253:57 pm -
1 stop12h 12m
Deal found 8/14![Alaska Airlines logo]()
$551
This Delta deal was found by Cheapflights users on 8/9. 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.
Sun 9/65:51 am -
1 stop10h 06m
Sun 9/137:06 pm -
1 stop8h 24m
Deal found 8/9![Delta logo]()
$382
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 10/209:20 am -
1 stop9h 19m
Fri 10/232:48 pm -
1 stop7h 11m
Deal found 8/13![United Airlines logo]()
$503
This Delta deal was found by Cheapflights users on 8/10. 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.
Wed 9/167:55 am -
1 stop10h 19m
Sun 9/207:06 pm -
1 stop8h 24m
Deal found 8/10![Delta logo]()
$388
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/143:35 pm -
1 stop7h 33m
Thu 9/178:00 am -
2 stops15h 10m
Deal found 8/12![United Airlines logo]()
$508
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 8/285:30 am -
2 stops8h 57m
Tue 9/11:09 pm -
1 stop8h 48m
Deal found 8/13![Delta logo]()
$424
Last-minute flights from Boston to IdahoDiscover last-minute flight deals from Boston to Idaho. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Idaho. Data last updated August 14, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/316:01 am -
1 stop7h 27m
Thu 9/1012:28 pm -
1 stop9h 02m
Deal found 8/11![United Airlines logo]()
$254
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/16:05 am -
1 stop9h 19m
Sat 9/52:05 pm -
1 stop6h 53m
Deal found 8/13![Delta logo]()
$266
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:05 am -
1 stop12h 40m
Sun 9/66:20 am -
1 stop15h 30m
Deal found 8/10![Southwest logo]()
$286
This Delta deal was found by Cheapflights users on 8/10. 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.
Fri 9/44:05 pm -
1 stop10h 54m
Wed 9/95:14 pm -
1 stop10h 16m
Deal found 8/10![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:40 am -
1 stop11h 50m
Sat 9/121:50 pm -
1 stop8h 40m
Deal found 8/12![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/58:15 am -
1 stop7h 27m
Sat 9/122:11 pm -
1 stop9h 06m
Deal found 8/12![Delta logo]()
$233
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/56:01 am -
1 stop7h 27m
Sat 9/1212:30 pm -
2 stops9h 29m
Deal found 8/13![United Airlines logo]()
$238
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/56:01 am -
1 stop8h 37m
Sat 9/121:37 pm -
1 stop7h 15m
Deal found 8/13![United Airlines logo]()
$241
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/116:20 am -
1 stop10h 24m
Tue 9/1512:17 pm -
1 stop10h 12m
Deal found 8/12![Delta logo]()
$265
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/122:28 pm -
2 stops10h 25m
Sat 9/1912:28 pm -
1 stop7h 31m
Deal found 8/13![United Airlines logo]()
$273
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:40 am -
1 stop7h 45m
Mon 9/2812:20 pm -
1 stop9h 10m
Deal found 8/12![Southwest logo]()
$240
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/2611:44 am -
1 stop10h 31m
Mon 9/2810:50 pm -
1 stop9h 18m
Deal found 8/11![Delta logo]()
$249
One-way flights from Boston to IdahoSearch for one-way flight options from Boston to Idaho. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
Search for one-way flight options from Boston to Idaho. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:15 am -
1 stop11h 30m
Deal found 8/11![Southwest logo]()
$113
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 10/75:17 am -
1 stop10h 34m
Deal found 8/13![American Airlines logo]()
$114
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 9/96:20 am -
1 stop10h 24m
Deal found 8/14![Delta logo]()
$117
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:05 am -
1 stop12h 45m
Deal found 8/14![Southwest logo]()
$119
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:55 pm -
1 stop9h 50m
Deal found 8/12![Southwest logo]()
$120
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/99:33 am -
2 stops10h 25m
Deal found 8/13![United Airlines logo]()
$122
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/197:55 am -
1 stop10h 19m
Deal found 8/12![Delta logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:54 pm -
2 stops27h 01m
Deal found 8/10![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/912:54 pm -
2 stops27h 01m
Deal found 8/12![Frontier logo]()
$129
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/912:37 pm -
2 stops11h 37m
Deal found 8/13![United Airlines logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/1012:54 pm -
2 stops27h 01m
Deal found 8/11![Frontier logo]()
$131
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:15 am -
1 stop11h 30m
Deal found 8/10![Southwest logo]()
$142
Find flight deals from Boston to Idaho
Keep the following information in mind while searching for Boston to Idaho flight deals. Data was last updated August 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $226 (Southwest) |
One-way from | $113 (Southwest) |
Popular in | June |
Cheapest in | May |
Average price | $466 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 August 14, 2026.
Use the filters below to find and compare flights from Boston to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonBoise
BOS Boston Logan Intl - BOI Boise Air Term. Gowen Fld
BOSBOI
Boston Logan Intl
Sat 9/5
8:15 am-1:42 pm
1 stop7h 27m
Boise Air Term. Gowen Fld
Sat 9/12
2:11 pm-1:17 am
1 stop9h 06m
$233
BostonBoise
BOS Boston Logan Intl - BOI Boise Air Term. Gowen Fld
BOSBOI
Boston Logan Intl
Sat 9/19
7:55 am-3:16 pm
1 stop9h 21m
Boise Air Term. Gowen Fld
Mon 9/21
7:19 pm-7:40 am
1 stop10h 21m
$233
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Sat 9/26
5:40 am-2:35 pm
1 stop11h 55m
Spokane
Mon 9/28
12:20 pm-12:30 am
1 stop9h 10m
$246
BostonBoise
BOS Boston Logan Intl - BOI Boise Air Term. Gowen Fld
BOSBOI
Boston Logan Intl
Fri 9/11
7:55 am-5:19 pm
1 stop11h 24m
Boise Air Term. Gowen Fld
Tue 9/22
6:44 pm-6:30 am
1 stop9h 46m
$265
BostonBoise
BOS Boston Logan Intl - BOI Boise Air Term. Gowen Fld
BOSBOI
Boston Logan Intl
Fri 9/11
6:20 am-2:44 pm
1 stop10h 24m
Boise Air Term. Gowen Fld
Tue 9/15
12:17 pm-12:29 am
1 stop10h 12m
$265
Quickest round-trip
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Tue 9/1
6:05 am-12:24 pm
1 stop9h 19m
Spokane
Sat 9/5
2:05 pm-11:58 pm
1 stop6h 53m
$266
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Fri 9/11
7:55 am-3:14 pm
1 stop10h 19m
Spokane
Mon 9/14
5:14 pm-6:30 am
1 stop10h 16m
$282
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Wed 11/4
1:10 pm-9:50 pm
2 stops11h 40m
Spokane
Sun 11/8
5:25 am-4:25 pm
1 stop8h 00m
$327
BostonSpokane
BOS Boston Logan Intl - GEG Spokane
BOSGEG
Boston Logan Intl
Fri 8/28
5:51 am-12:57 pm
1 stop10h 06m
Spokane
Mon 8/31
12:36 pm-1:25 am
1 stop9h 49m
$329
BostonBoise
BOS Boston Logan Intl - BOI Boise Air Term. Gowen Fld
BOSBOI
Boston Logan Intl
Sat 9/5
2:00 pm-9:24 pm
1 stop9h 24m
Boise Air Term. Gowen Fld
Sat 9/12
12:30 pm-9:59 pm
1 stop7h 29m
$343
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Boston to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Boston with our price prediction graph.
BOS-BOI
BOS-GEG
BOS-IDA
BOS-JAC
BOS-SUN
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 Boston to Idaho
BOS-USID
BOS-BOI
BOS-GEG
BOS-IDA
BOS-JAC
What is the cheapest month to book a flight from Boston to Idaho?
Currently, May is the cheapest month in which you can book a flight from Boston to Idaho (average of $424). Flying from Boston to Idaho in December is currently the most expensive (average of $676). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Boston to Idaho?
Airfare is below average for this route at the moment.
Boston to Idaho flights typically cost between $389 and $571 in October.The cheapest round-trip price found within the last 5 days was $226 on Southwest (Oct 29-Nov 2).
How far ahead should I book a flight from Boston to Idaho?
The price you pay for your flight from Boston to Idaho may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated August 14, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andDelta from Boston to Idaho. 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.
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Boston to Idaho. 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 Boston to Idaho
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Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Idaho by cabin class
Find flights from Boston to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Idaho flights
Browse other Boston and Idaho flight options. Last updated on August 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Boston to Idaho flights
Consider these flights traveling from Boston to Idaho.
Top 5 airlines flying from Boston to Idaho
Discover the top 5 airlines that operate flights from Boston to Idaho. 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 August 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$182 | Average$572 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$224 | Average$528 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$281 | Average$515 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$306 | Average$481 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$369 | Average$587 | FlexibilityNo cancel fee | On-time69% |