$149+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BOI
Mar 27 — Apr 31
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 February 25, 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 February 25, 2026.
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:10 am
BOS
- GEG
1 stop10h 35m
Delta
Tue 3/317:45 pm
GEG
- BOS
1 stop8h 05m
Delta
Deal found 2/24![Delta logo]()
$265
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/286:45 pm
BOS
- BOI
1 stop17h 10m
Delta
Tue 4/74:43 pm
BOI
- BOS
1 stop12h 07m
Delta
Deal found 2/23![Delta logo]()
$265
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:05 am
BOS
- BOI
1 stop8h 21m
Delta
Wed 4/2211:35 pm
BOI
- BOS
1 stop7h 59m
Delta
Deal found 2/23![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:45 pm
BOS
- GEG
1 stop8h 35m
Delta
Mon 5/184:15 pm
GEG
- BOS
2 stops11h 05m
Delta
Deal found 2/24![Delta logo]()
$270
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:50 am
BOS
- BOI
2 stops12h 10m
Delta
Tue 3/247:30 pm
BOI
- BOS
1 stop9h 20m
Delta
Deal found 2/24![Delta logo]()
$270
This United Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/314:50 pm
BOS
- BOI
1 stop7h 45m
United Airlines
Wed 4/86:15 am
BOI
- BOS
2 stops9h 11m
United Airlines
Deal found 2/23![United Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
BOS
- WYS
1 stop8h 21m
Delta
Wed 9/21:09 pm
WYS
- BOS
1 stop8h 48m
Delta
Deal found 2/24![Delta logo]()
$294
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:30 am
BOS
- BOI
1 stop9h 18m
American Airlines
Tue 3/241:31 pm
BOI
- BOS
1 stop7h 30m
American Airlines
Deal found 2/24![American Airlines logo]()
$296
This Alaska Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 am
BOS
- GEG
1 stop9h 23m
Alaska Airlines
Sat 5/25:00 am
GEG
- BOS
1 stop7h 33m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/266:45 am
BOS
- JAC
1 stop9h 41m
American Airlines
Mon 3/301:44 pm
JAC
- BOS
1 stop7h 17m
American Airlines
Deal found 2/24![American Airlines logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:56 pm
BOS
- GEG
1 stop31h 24m
Alaska Airlines
Sat 5/25:00 am
GEG
- BOS
1 stop7h 33m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$302
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:00 am
BOS
- JAC
1 stop8h 41m
American Airlines
Mon 4/131:25 pm
JAC
- BOS
1 stop8h 34m
American Airlines
Deal found 2/24![American Airlines logo]()
$303
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 February 25, 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 February 25, 2026.
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:10 am
BOS
- GEG
1 stop10h 35m
Delta
Tue 3/317:45 pm
GEG
- BOS
1 stop8h 05m
Delta
Deal found 2/24![Delta logo]()
$265
This United Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:00 am
BOS
- SUN
1 stop7h 44m
United Airlines
Fri 4/102:24 pm
SUN
- BOS
1 stop7h 35m
United Airlines
Deal found 2/23![United Airlines logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 6/18:05 am
BOS
- GEG
1 stop16h 40m
Alaska Airlines
Tue 6/97:01 am
GEG
- BOS
1 stop19h 43m
Alaska Airlines
Deal found 2/22![Alaska Airlines logo]()
$377
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:40 pm
BOS
- JAC
2 stops19h 01m
American Airlines
Mon 4/131:25 pm
JAC
- BOS
2 stops18h 02m
American Airlines
Deal found 2/20![American Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:45 am
BOS
- GEG
2 stops10h 50m
Southwest
Tue 7/146:00 am
GEG
- BOS
2 stops8h 50m
Southwest
Deal found 2/24![Southwest logo]()
$422
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/196:15 am
BOS
- SUN
1 stop7h 39m
Delta
Fri 3/273:30 pm
SUN
- BOS
1 stop6h 29m
Delta
Deal found 2/21![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 5/232:40 pm
BOS
- JAC
1 stop8h 20m
United Airlines
Fri 5/291:42 pm
JAC
- BOS
2 stops9h 17m
United Airlines
Deal found 2/20![United Airlines logo]()
$364
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:03 am
BOS
- GEG
1 stop8h 26m
Alaska Airlines
Tue 7/141:23 pm
GEG
- BOS
1 stop7h 36m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 7/136:35 pm
BOS
- GEG
1 stop8h 09m
Delta
Mon 7/205:40 pm
GEG
- BOS
1 stop9h 55m
Delta
Deal found 2/22![Delta logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:53 pm
BOS
- GEG
1 stop9h 06m
Alaska Airlines
Thu 7/1612:42 pm
GEG
- BOS
1 stop14h 48m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:52 am
BOS
- SUN
2 stops16h 44m
American Airlines
Fri 3/277:40 am
SUN
- BOS
2 stops13h 43m
American Airlines
Deal found 2/24![American Airlines logo]()
$426
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 2/287:48 am
BOS
- JAC
1 stop7h 25m
United Airlines
Sat 3/78:00 am
JAC
- BOS
1 stop8h 47m
United Airlines
Deal found 2/21![United Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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.
Mon 6/152:10 pm
BOS
- GEG
2 stops11h 50m
Southwest
Sat 6/203:15 pm
GEG
- BOS
1 stop11h 45m
Southwest
Deal found 2/21![Southwest logo]()
$473
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:30 am
BOS
- GEG
2 stops10h 21m
United Airlines
Tue 3/315:05 am
GEG
- BOS
2 stops10h 14m
United Airlines
Deal found 2/24![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 5/213:55 pm
BOS
- BOI
1 stop8h 18m
Delta
Sat 5/306:41 pm
BOI
- BOS
1 stop9h 40m
Delta
Deal found 2/20![Delta logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:33 pm
BOS
- BOI
2 stops17h 34m
Alaska Airlines
Wed 5/134:28 pm
BOI
- BOS
2 stops11h 16m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 2/285:32 am
BOS
- JAC
1 stop9h 06m
American Airlines
Sat 3/73:06 pm
JAC
- BOS
2 stops15h 48m
American Airlines
Deal found 2/20![American Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/253:15 pm
BOS
- BOI
2 stops11h 15m
Southwest
Wed 4/16:05 am
BOI
- BOS
2 stops9h 40m
Southwest
Deal found 2/23![Southwest logo]()
$488
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:09 am
BOS
- SUN
1 stop8h 26m
United Airlines
Sat 4/182:24 pm
SUN
- BOS
1 stop7h 35m
United Airlines
Deal found 2/24![United Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 5/228:05 am
BOS
- GEG
1 stop16h 40m
Alaska Airlines
Mon 5/258:20 am
GEG
- BOS
1 stop19h 00m
Alaska Airlines
Deal found 2/22![Alaska Airlines logo]()
$458
This Southwest deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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.
Mon 4/203:45 pm
BOS
- BOI
2 stops11h 00m
Southwest
Fri 4/244:20 pm
BOI
- BOS
1 stop6h 30m
Southwest
Deal found 2/21![Southwest logo]()
$506
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/16:00 am
BOS
- JAC
1 stop9h 40m
United Airlines
Sat 3/78:00 am
JAC
- BOS
1 stop8h 47m
United Airlines
Deal found 2/20![United Airlines logo]()
$439
This Southwest deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/285:00 am
BOS
- BOI
1 stop7h 30m
Southwest
Sat 4/411:10 am
BOI
- BOS
2 stops11h 50m
Southwest
Deal found 2/22![Southwest logo]()
$513
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:48 pm
BOS
- BOI
1 stop9h 10m
Alaska Airlines
Mon 5/258:28 pm
BOI
- BOS
1 stop7h 52m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:15 am
BOS
- PIH
1 stop7h 32m
Delta
Mon 4/612:30 pm
PIH
- BOS
2 stops33h 29m
Delta
Deal found 2/23![Delta logo]()
$525
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/611:02 am
BOS
- SUN
2 stops12h 23m
United Airlines
Tue 3/1012:34 pm
SUN
- BOS
2 stops9h 23m
United Airlines
Deal found 2/21![United Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:20 am
BOS
- GEG
1 stop8h 44m
Alaska Airlines
Mon 6/85:00 am
GEG
- BOS
2 stops15h 59m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$470
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:00 am
BOS
- IDA
1 stop10h 27m
Delta
Sun 8/306:10 am
IDA
- BOS
2 stops15h 28m
Delta
Deal found 2/23![Delta logo]()
$542
This Alaska Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:11 pm
BOS
- SUN
1 stop17h 03m
Alaska Airlines
Sat 5/3010:56 am
SUN
- BOS
1 stop11h 03m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/87:00 am
BOS
- IDA
1 stop8h 30m
United Airlines
Wed 3/116:36 am
IDA
- BOS
1 stop7h 07m
United Airlines
Deal found 2/22![United Airlines logo]()
$481
Last-minute flights from Boston to IdahoDiscover last-minute flight deals from Boston to Idaho. Data last updated February 25, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Idaho. Data last updated February 25, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:50 am
BOS
- BOI
2 stops12h 10m
Delta
Tue 3/247:30 pm
BOI
- BOS
1 stop9h 20m
Delta
Deal found 2/24![Delta logo]()
$270
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:30 am
BOS
- BOI
1 stop9h 18m
American Airlines
Tue 3/241:31 pm
BOI
- BOS
1 stop7h 30m
American Airlines
Deal found 2/24![American Airlines logo]()
$296
This American Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/185:30 am
BOS
- BOI
1 stop9h 18m
American Airlines
Wed 3/256:37 pm
BOI
- BOS
1 stop8h 57m
American Airlines
Deal found 2/21![American Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:15 am
BOS
- SUN
1 stop10h 34m
Delta
Fri 3/272:15 pm
SUN
- BOS
1 stop7h 44m
Delta
Deal found 2/24![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:10 am
BOS
- GEG
1 stop10h 35m
Delta
Tue 3/317:45 pm
GEG
- BOS
1 stop8h 05m
Delta
Deal found 2/24![Delta logo]()
$265
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:30 am
BOS
- GEG
2 stops13h 48m
United Airlines
Tue 3/311:43 pm
GEG
- BOS
1 stop7h 16m
United Airlines
Deal found 2/24![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:00 am
BOS
- JAC
2 stops10h 26m
American Airlines
Wed 4/11:44 pm
JAC
- BOS
2 stops15h 29m
American Airlines
Deal found 2/23![American Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:10 am
BOS
- GEG
1 stop8h 50m
Delta
Sun 3/297:45 pm
GEG
- BOS
1 stop8h 05m
Delta
Deal found 2/24![Delta logo]()
$335
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/266:45 am
BOS
- JAC
1 stop9h 41m
American Airlines
Mon 3/301:44 pm
JAC
- BOS
1 stop7h 17m
American Airlines
Deal found 2/24![American Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/286:45 pm
BOS
- BOI
1 stop17h 10m
Delta
Tue 4/74:43 pm
BOI
- BOS
1 stop12h 07m
Delta
Deal found 2/23![Delta logo]()
$265
This American Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/297:50 pm
BOS
- JAC
2 stops18h 28m
American Airlines
Wed 4/11:44 pm
JAC
- BOS
1 stop7h 17m
American Airlines
Deal found 2/23![American Airlines logo]()
$317
This United Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/314:50 pm
BOS
- BOI
1 stop7h 45m
United Airlines
Wed 4/86:15 am
BOI
- BOS
2 stops9h 11m
United Airlines
Deal found 2/23![United Airlines logo]()
$286
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 February 25, 2026.
Search for one-way flight options from Boston to Idaho. Find affordable one-way fares based on user searches. Data last updated February 25, 2026.
This American Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/178:26 am
BOS
- GEG
1 stop11h 28m
American Airlines
Deal found 2/21![American Airlines logo]()
$149
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/276:45 pm
BOS
- GEG
1 stop8h 18m
Delta
Deal found 2/23![Delta logo]()
$153
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/1711:02 am
BOS
- GEG
2 stops13h 16m
United Airlines
Deal found 2/21![United Airlines logo]()
$154
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/269:00 am
BOS
- JAC
1 stop28h 37m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$154
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 5/113:55 pm
BOS
- GEG
1 stop8h 18m
Delta
Deal found 2/21![Delta logo]()
$162
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:40 am
BOS
- BOI
1 stop10h 54m
Delta
Deal found 2/21![Delta logo]()
$162
This Travelocity deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:15 am
BOS
- SUN
1 stop13h 57m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$164
This American Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:16 pm
BOS
- SUN
1 stop19h 38m
American Airlines
Deal found 2/23![American Airlines logo]()
$166
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:15 am
BOS
- BOI
1 stop7h 50m
Delta
Deal found 2/23![Delta logo]()
$166
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2411:15 am
BOS
- SUN
2 stops12h 35m
Delta
Deal found 2/23![Delta logo]()
$168
This Delta deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/196:15 am
BOS
- SUN
1 stop10h 34m
Delta
Deal found 2/22![Delta logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/175:49 pm
BOS
- GEG
3 stops43h 58m
Multiple Airlines
Deal found 2/21![Multiple Airlines 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 February 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $265 (Delta) |
One-way from | $149 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $457 |
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 February 25, 2026.
Use the filters below to find and compare flights from Boston to Idaho that are best for you.
Fly from
Boston
Fly to
Idaho
Route
Depart
Return
Price
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Tue 3/24
7:10 am-2:45 pm
1 stop10h 35m
Spokane
Tue 3/31
7:45 pm-6:50 am
1 stop8h 05m
$265
BostonHailey
BOS - SUN
BOSSUN
Boston Logan Intl
Fri 4/3
6:00 am-11:44 am
1 stop7h 44m
Hailey Sun Valley-Friedman
Fri 4/10
2:24 pm-11:59 pm
1 stop7h 35m
$329
BostonHailey
BOS - SUN
BOSSUN
Boston Logan Intl
Thu 3/19
6:15 am-11:54 am
1 stop7h 39m
Hailey Sun Valley-Friedman
Fri 3/27
3:30 pm-11:59 pm
1 stop6h 29m
$329
BostonJackson
BOS - JAC
BOSJAC
Boston Logan Intl
Sat 5/23
2:40 pm-9:00 pm
1 stop8h 20m
Jackson Hole
Fri 5/29
1:42 pm-12:59 am
2 stops9h 17m
$364
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Mon 6/1
8:05 am-9:45 pm
1 stop16h 40m
Spokane
Tue 6/9
7:01 am-5:44 am
1 stop19h 43m
$377
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Thu 7/9
7:03 am-12:29 pm
1 stop8h 26m
Spokane
Tue 7/14
1:23 pm-11:59 pm
1 stop7h 36m
$377
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Mon 7/13
6:35 pm-11:44 pm
1 stop8h 09m
Spokane
Mon 7/20
5:40 pm-6:35 am
1 stop9h 55m
$387
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Mon 7/13
5:53 pm-11:59 pm
1 stop9h 06m
Spokane
Thu 7/16
12:42 pm-6:30 am
1 stop14h 48m
$387
BostonJackson
BOS - JAC
BOSJAC
Boston Logan Intl
Sat 2/28
7:48 am-1:13 pm
1 stop7h 25m
Jackson Hole
Sat 3/7
8:00 am-6:47 pm
1 stop8h 47m
$404
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Tue 3/24
10:30 am-5:51 pm
2 stops10h 21m
Spokane
Tue 3/31
5:05 am-6:19 pm
2 stops10h 14m
$406
Showing 1-10 of 60 results
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-GEG
BOS-JAC
BOS-BOI
BOS-SUN
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-GEG
BOS-JAC
BOS-BOI
BOS-SUN
What is the cheapest month to book a flight from Boston to Idaho?
Currently, April is the cheapest month in which you can book a flight from Boston to Idaho (average of $204). Flying from Boston to Idaho in June is currently the most expensive (average of $319). 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 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 February 25, 2026.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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
Crew
8.5
Overall
8.0
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Overall
8.0
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Overall
8.0
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Overall
8.0
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Overall
8.0
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Crew
8.5
Overall
8.0
Entertainment
7.0
Food
7.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
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 February 25, 2026.
Popular flight searches
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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 February 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$490 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$264 | Average$489 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$282 | Average$605 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$560 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$370 | Average$462 | FlexibilityNo cancel fee | On-time63% |