$143+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BOI
May 31 — Jun 71
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Idaho with Cheapflights
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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 May 1, 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 May 1, 2026.
This Delta deal was found by Cheapflights users on 4/28. 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 5/276:15 am
BOS
- BOI
1 stop10h 19m
Delta
Tue 6/26:41 pm
BOI
- BOS
1 stop9h 39m
Delta
Deal found 4/28![Delta logo]()
$285
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 6/26:45 pm
BOS
- BOI
1 stop7h 19m
Delta
Sat 6/66:41 pm
BOI
- BOS
1 stop9h 24m
Delta
Deal found 4/29![Delta logo]()
$298
This American Airlines deal was found by Cheapflights users on 4/27. 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 7/146:00 am
BOS
- BOI
1 stop10h 47m
American Airlines
Tue 7/215:36 pm
BOI
- BOS
1 stop10h 09m
American Airlines
Deal found 4/27![American Airlines logo]()
$304
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 8/186:10 am
BOS
- BOI
1 stop10h 04m
American Airlines
Sat 8/222:46 pm
BOI
- BOS
1 stop7h 13m
American Airlines
Deal found 4/30![American Airlines logo]()
$305
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Sat 6/138:37 am
BOS
- BOI
1 stop7h 45m
American Airlines
Tue 6/163:12 pm
BOI
- BOS
1 stop7h 16m
American Airlines
Deal found 4/27![American Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/306:10 am
BOS
- BOI
1 stop8h 01m
Delta
Fri 6/59:18 pm
BOI
- BOS
1 stop8h 15m
Delta
Deal found 4/27![Delta logo]()
$315
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:00 am
BOS
- BOI
2 stops10h 22m
American Airlines
Sat 7/118:11 am
BOI
- BOS
1 stop10h 49m
American Airlines
Deal found 4/28![American Airlines logo]()
$317
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/258:00 am
BOS
- JAC
1 stop9h 09m
American Airlines
Wed 6/310:00 am
JAC
- BOS
1 stop8h 08m
American Airlines
Deal found 4/29![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:00 am
BOS
- BOI
1 stop9h 20m
American Airlines
Tue 8/116:44 am
BOI
- BOS
1 stop10h 58m
American Airlines
Deal found 4/29![American Airlines logo]()
$320
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:00 am
BOS
- JAC
1 stop9h 09m
American Airlines
Tue 6/212:54 pm
JAC
- BOS
1 stop9h 10m
American Airlines
Deal found 4/26![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 4/29. 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 5/249:05 am
BOS
- JAC
2 stops9h 54m
Delta
Tue 6/211:35 am
JAC
- BOS
2 stops9h 16m
Delta
Deal found 4/29![Delta logo]()
$341
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:10 am
BOS
- WYS
1 stop8h 15m
Delta
Mon 6/81:10 pm
WYS
- BOS
1 stop8h 39m
Delta
Deal found 4/27![Delta logo]()
$354
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 May 1, 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 May 1, 2026.
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 5/305:35 am
BOS
- BOI
1 stop9h 08m
Delta
Sat 6/61:53 pm
BOI
- BOS
1 stop8h 05m
Delta
Deal found 4/30![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 5/234:57 pm
BOS
- BOI
1 stop7h 40m
United Airlines
Thu 5/287:05 pm
BOI
- BOS
1 stop9h 16m
United Airlines
Deal found 4/30![United Airlines logo]()
$285
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:10 pm
BOS
- GEG
2 stops11h 15m
Southwest
Sun 8/306:35 am
GEG
- BOS
2 stops12h 25m
Southwest
Deal found 4/29![Southwest logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
BOS
- GEG
1 stop8h 52m
Alaska Airlines
Tue 6/97:25 pm
GEG
- BOS
2 stops11h 05m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 6/96:20 am
BOS
- BOI
1 stop10h 31m
Delta
Mon 6/156:42 pm
BOI
- BOS
1 stop9h 23m
Delta
Deal found 4/29![Delta logo]()
$285
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 5/273:55 pm
BOS
- BOI
1 stop10h 00m
Delta
Sat 5/306:41 pm
BOI
- BOS
1 stop9h 39m
Delta
Deal found 4/30![Delta logo]()
$285
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 7/225:55 am
BOS
- BOI
1 stop9h 49m
Delta
Wed 7/292:50 pm
BOI
- BOS
1 stop7h 05m
Delta
Deal found 4/30![Delta logo]()
$285
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 5/236:16 pm
BOS
- BOI
1 stop7h 30m
Delta
Sat 6/132:50 pm
BOI
- BOS
1 stop7h 08m
Delta
Deal found 4/30![Delta logo]()
$285
This Delta deal was found by Cheapflights users on 5/1. 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.
Tue 6/23:00 pm
BOS
- BOI
1 stop9h 28m
Delta
Sat 6/66:41 pm
BOI
- BOS
1 stop9h 24m
Delta
Deal found 5/1![Delta logo]()
$285
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:40 am
BOS
- GEG
1 stop14h 15m
Southwest
Mon 8/106:00 am
GEG
- BOS
1 stop8h 20m
Southwest
Deal found 4/26![Southwest logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:03 am
BOS
- GEG
1 stop10h 35m
Alaska Airlines
Mon 7/207:41 pm
GEG
- BOS
1 stop7h 39m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:15 am
BOS
- BOI
1 stop10h 19m
Delta
Tue 6/29:18 pm
BOI
- BOS
1 stop8h 15m
Delta
Deal found 4/26![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:10 pm
BOS
- SUN
1 stop8h 16m
United Airlines
Thu 7/97:00 am
SUN
- BOS
2 stops12h 53m
United Airlines
Deal found 4/26![United Airlines logo]()
$492
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:15 am
BOS
- GEG
2 stops11h 30m
Southwest
Sat 6/65:50 am
GEG
- BOS
2 stops11h 30m
Southwest
Deal found 4/30![Southwest logo]()
$448
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:09 am
BOS
- IDA
1 stop10h 28m
Alaska Airlines
Sat 9/264:14 pm
IDA
- BOS
1 stop11h 55m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 4/30. 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 7/125:55 am
BOS
- BOI
1 stop9h 49m
Delta
Wed 7/152:04 pm
BOI
- BOS
1 stop9h 16m
Delta
Deal found 4/30![Delta logo]()
$315
This Southwest deal was found by Cheapflights users on 4/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/22:10 pm
BOS
- GEG
2 stops12h 15m
Southwest
Thu 7/96:05 pm
GEG
- BOS
2 stops11h 05m
Southwest
Deal found 4/27![Southwest logo]()
$467
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 10/276:00 am
BOS
- SUN
2 stops9h 44m
United Airlines
Sat 10/312:29 pm
SUN
- BOS
1 stop7h 13m
United Airlines
Deal found 4/30![United Airlines logo]()
$516
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:03 am
BOS
- GEG
1 stop8h 42m
Alaska Airlines
Tue 8/257:24 pm
GEG
- BOS
1 stop7h 45m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$482
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 9/53:20 pm
BOS
- JAC
1 stop7h 45m
United Airlines
Sat 9/128:00 am
JAC
- BOS
2 stops15h 05m
United Airlines
Deal found 4/29![United Airlines logo]()
$518
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2212:50 pm
BOS
- GEG
2 stops12h 30m
Southwest
Fri 6/122:15 pm
GEG
- BOS
1 stop7h 45m
Southwest
Deal found 4/29![Southwest logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:40 am
BOS
- IDA
2 stops17h 16m
Alaska Airlines
Fri 10/24:14 pm
IDA
- BOS
1 stop11h 55m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Mon 5/256:00 am
BOS
- JAC
1 stop7h 35m
United Airlines
Sat 5/308:00 am
JAC
- BOS
2 stops13h 21m
United Airlines
Deal found 4/27![United Airlines logo]()
$520
This Delta deal was found by Cheapflights users on 4/28. 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.
Mon 6/157:45 am
BOS
- BOI
1 stop9h 27m
Delta
Mon 6/222:50 pm
BOI
- BOS
1 stop7h 07m
Delta
Deal found 4/28![Delta logo]()
$364
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
BOS
- GEG
1 stop8h 52m
Alaska Airlines
Sun 5/3112:46 pm
GEG
- BOS
2 stops14h 34m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$496
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 5/262:40 pm
BOS
- JAC
1 stop8h 20m
United Airlines
Sat 5/308:00 am
JAC
- BOS
2 stops13h 21m
United Airlines
Deal found 4/28![United Airlines logo]()
$520
This Delta deal was found by Cheapflights users on 4/30. 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.
Thu 5/289:05 am
BOS
- IDA
2 stops11h 09m
Delta
Mon 6/16:54 pm
IDA
- BOS
1 stop9h 26m
Delta
Deal found 4/30![Delta logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:59 pm
BOS
- JAC
1 stop17h 16m
Alaska Airlines
Sat 9/122:10 pm
JAC
- BOS
1 stop13h 59m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 4/28. 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 10/147:30 am
BOS
- SUN
1 stop8h 14m
United Airlines
Sun 10/187:00 am
SUN
- BOS
1 stop6h 54m
United Airlines
Deal found 4/28![United Airlines logo]()
$524
This Delta deal was found by Cheapflights users on 4/30. 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 7/275:30 am
BOS
- SUN
2 stops11h 01m
Delta
Wed 7/297:20 am
SUN
- BOS
2 stops10h 40m
Delta
Deal found 4/30![Delta logo]()
$411
Last-minute flights from Boston to IdahoDiscover last-minute flight deals from Boston to Idaho. Data last updated May 1, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Idaho. Data last updated May 1, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 5/235:51 am
BOS
- BOI
1 stop9h 27m
Delta
Sat 6/132:50 pm
BOI
- BOS
1 stop7h 08m
Delta
Deal found 4/28![Delta logo]()
$334
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:00 am
BOS
- BOI
1 stop11h 07m
American Airlines
Sat 6/133:12 pm
BOI
- BOS
1 stop7h 16m
American Airlines
Deal found 4/26![American Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 4/29. 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 5/249:05 am
BOS
- JAC
2 stops9h 54m
Delta
Tue 6/211:35 am
JAC
- BOS
2 stops9h 16m
Delta
Deal found 4/29![Delta logo]()
$341
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/258:00 am
BOS
- JAC
1 stop9h 09m
American Airlines
Wed 6/310:00 am
JAC
- BOS
1 stop8h 08m
American Airlines
Deal found 4/29![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 4/28. 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 5/276:15 am
BOS
- BOI
1 stop10h 19m
Delta
Tue 6/26:41 pm
BOI
- BOS
1 stop9h 39m
Delta
Deal found 4/28![Delta logo]()
$285
This Delta deal was found by Cheapflights users on 4/29. 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.
Wed 5/275:51 am
BOS
- BOI
1 stop9h 27m
Delta
Sat 5/306:41 pm
BOI
- BOS
1 stop9h 39m
Delta
Deal found 4/29![Delta logo]()
$321
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Wed 5/276:00 am
BOS
- BOI
2 stops10h 20m
American Airlines
Sat 5/303:11 pm
BOI
- BOS
1 stop7h 04m
American Airlines
Deal found 4/27![American Airlines logo]()
$345
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:11 pm
BOS
- IDA
1 stop22h 15m
Alaska Airlines
Tue 6/24:03 pm
IDA
- BOS
1 stop12h 21m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:00 am
BOS
- JAC
1 stop9h 09m
American Airlines
Tue 6/212:54 pm
JAC
- BOS
1 stop9h 10m
American Airlines
Deal found 4/26![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 5/305:51 am
BOS
- BOI
1 stop9h 27m
Delta
Sat 6/66:41 pm
BOI
- BOS
1 stop9h 24m
Delta
Deal found 4/28![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/306:10 am
BOS
- BOI
1 stop8h 01m
Delta
Fri 6/59:18 pm
BOI
- BOS
1 stop8h 15m
Delta
Deal found 4/27![Delta logo]()
$315
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:00 am
BOS
- BOI
1 stop10h 07m
American Airlines
Fri 6/53:12 pm
BOI
- BOS
1 stop7h 16m
American Airlines
Deal found 4/28![American Airlines logo]()
$351
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 May 1, 2026.
Search for one-way flight options from Boston to Idaho. Find affordable one-way fares based on user searches. Data last updated May 1, 2026.
This Delta deal was found by Cheapflights users on 4/28. 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.
Tue 6/167:15 am
BOS
- BOI
1 stop8h 36m
Delta
Deal found 4/28![Delta logo]()
$143
This Delta deal was found by Cheapflights users on 4/28. 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 5/277:48 am
BOS
- GEG
1 stop10h 43m
Delta
Deal found 4/28![Delta logo]()
$147
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
BOS
- BOI
2 stops10h 14m
American Airlines
Deal found 4/26![American Airlines logo]()
$148
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:00 am
BOS
- GEG
1 stop9h 11m
American Airlines
Deal found 4/28![American Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 4/30. 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.
Wed 5/278:44 am
BOS
- BOI
2 stops29h 46m
Frontier
Deal found 4/30![Frontier logo]()
$153
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:10 am
BOS
- JAC
2 stops10h 49m
Delta
Deal found 4/26![Delta logo]()
$154
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 8/116:00 am
BOS
- GEG
2 stops10h 19m
American Airlines
Deal found 4/30![American Airlines logo]()
$162
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:10 am
BOS
- GEG
1 stop9h 11m
Delta
Deal found 4/26![Delta logo]()
$164
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:05 am
BOS
- BOI
2 stops9h 57m
American Airlines
Deal found 4/26![American Airlines logo]()
$164
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/316:10 am
BOS
- JAC
1 stop8h 10m
Delta
Deal found 4/26![Delta logo]()
$170
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:00 am
BOS
- BOI
1 stop10h 06m
American Airlines
Deal found 4/28![American Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:44 am
BOS
- BOI
2 stops29h 54m
Frontier
Deal found 4/27![Frontier logo]()
$172
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 May 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $285 (Delta) |
One-way from | $143 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $420 |
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 May 1, 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 - BOI
BOSBOI
Boston Logan Intl
Sat 5/30
5:35 am-12:43 pm
1 stop9h 08m
Boise Air Term. Gowen Fld
Sat 6/6
1:53 pm-11:58 pm
1 stop8h 05m
$285
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Sat 5/23
4:57 pm-10:37 pm
1 stop7h 40m
Boise Air Term. Gowen Fld
Thu 5/28
7:05 pm-6:21 am
1 stop9h 16m
$285
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Tue 6/9
6:20 am-2:51 pm
1 stop10h 31m
Boise Air Term. Gowen Fld
Mon 6/15
6:42 pm-6:05 am
1 stop9h 23m
$285
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Wed 5/27
3:55 pm-11:55 pm
1 stop10h 00m
Boise Air Term. Gowen Fld
Sat 5/30
6:41 pm-6:20 am
1 stop9h 39m
$285
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Wed 7/22
5:55 am-1:44 pm
1 stop9h 49m
Boise Air Term. Gowen Fld
Wed 7/29
2:50 pm-11:55 pm
1 stop7h 05m
$285
Quickest round-trip
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Sat 5/23
6:16 pm-11:46 pm
1 stop7h 30m
Boise Air Term. Gowen Fld
Sat 6/13
2:50 pm-11:58 pm
1 stop7h 08m
$285
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Tue 6/2
3:00 pm-10:28 pm
1 stop9h 28m
Boise Air Term. Gowen Fld
Sat 6/6
6:41 pm-6:05 am
1 stop9h 24m
$285
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Wed 5/27
6:15 am-2:34 pm
1 stop10h 19m
Boise Air Term. Gowen Fld
Tue 6/2
9:18 pm-7:33 am
1 stop8h 15m
$285
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Sun 7/12
5:55 am-1:44 pm
1 stop9h 49m
Boise Air Term. Gowen Fld
Wed 7/15
2:04 pm-1:20 am
1 stop9h 16m
$315
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Mon 6/15
7:45 am-3:12 pm
1 stop9h 27m
Boise Air Term. Gowen Fld
Mon 6/22
2:50 pm-11:57 pm
1 stop7h 07m
$364
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-JAC
BOS-WYS
BOS-IDA
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-JAC
BOS-WYS
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 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Boston to Idaho?
Currently, June is the cheapest month in which you can book a flight from Boston to Idaho (average of $142). Flying from Boston to Idaho in November is currently the most expensive (average of $293). 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?
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 May 1, 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.
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Overall
8.0
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
See prices for flight routes from nearby airports that may be better suited for you.
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 May 1, 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 May 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$260 | Average$594 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$260 | Average$654 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$264 | Average$499 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$293 | Average$588 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$306 | Average$470 | FlexibilityNo cancel fee | On-time63% |