$129+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BOI
Mar 11 — Mar 181
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 February 9, 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 9, 2026.
This Expedia deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:00 am
BOS
- GEG
1 stop8h 42m
Alaska Airlines
Tue 9/87:42 pm
GEG
- BOS
1 stop7h 20m
Alaska Airlines
Deal found 2/6![Alaska Airlines logo]()
$201
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:00 am
BOS
- GEG
1 stop8h 41m
United Airlines
Wed 3/256:37 pm
GEG
- BOS
1 stop8h 14m
United Airlines
Deal found 2/5![United Airlines logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 5/27:41 pm
GEG
- BOS
1 stop8h 31m
Alaska Airlines
Deal found 2/5![Alaska Airlines logo]()
$257
This Expedia deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:00 am
BOS
- BOI
1 stop9h 58m
Alaska Airlines
Tue 3/179:00 pm
BOI
- BOS
1 stop7h 54m
Alaska Airlines
Deal found 2/6![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:45 am
BOS
- BOI
1 stop8h 58m
Delta
Tue 5/192:25 pm
BOI
- BOS
1 stop7h 29m
Delta
Deal found 2/5![Delta logo]()
$273
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:30 am
BOS
- BOI
1 stop8h 30m
American Airlines
Wed 3/251:31 pm
BOI
- BOS
1 stop7h 30m
American Airlines
Deal found 2/7![American Airlines logo]()
$276
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:30 am
BOS
- BOI
1 stop9h 12m
American Airlines
Tue 3/316:33 pm
BOI
- BOS
1 stop9h 01m
American Airlines
Deal found 2/8![American Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:50 am
BOS
- BOI
1 stop10h 15m
Delta
Tue 3/2411:30 pm
BOI
- BOS
1 stop9h 58m
Delta
Deal found 2/7![Delta logo]()
$293
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:30 am
BOS
- GEG
1 stop8h 14m
American Airlines
Mon 3/93:10 pm
GEG
- BOS
1 stop11h 24m
American Airlines
Deal found 2/6![American Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:15 am
BOS
- JAC
1 stop7h 55m
Delta
Wed 4/11:10 pm
JAC
- BOS
1 stop8h 49m
Delta
Deal found 2/6![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/171:55 pm
BOS
- GEG
1 stop10h 25m
Delta
Sat 3/212:15 pm
GEG
- BOS
1 stop6h 34m
Delta
Deal found 2/6![Delta logo]()
$302
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:00 am
BOS
- BOI
1 stop9h 03m
American Airlines
Sat 4/181:29 pm
BOI
- BOS
1 stop8h 54m
American Airlines
Deal found 2/7![American Airlines logo]()
$307
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 9, 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 9, 2026.
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:02 am
BOS
- GEG
1 stop9h 49m
United Airlines
Wed 3/256:37 pm
GEG
- BOS
2 stops10h 08m
United Airlines
Deal found 2/5![United Airlines logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 5/27:41 pm
GEG
- BOS
1 stop8h 31m
Alaska Airlines
Deal found 2/5![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/24:50 pm
BOS
- BOI
1 stop7h 06m
Delta
Tue 5/128:55 pm
BOI
- BOS
1 stop8h 40m
Delta
Deal found 2/8![Delta logo]()
$293
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:30 am
BOS
- BOI
1 stop8h 30m
American Airlines
Tue 3/241:31 pm
BOI
- BOS
1 stop8h 34m
American Airlines
Deal found 2/8![American Airlines logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/24:33 pm
BOS
- BOI
1 stop9h 26m
Alaska Airlines
Sat 5/96:08 pm
BOI
- BOS
1 stop11h 04m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:37 am
BOS
- BOI
1 stop10h 37m
Delta
Wed 5/1312:16 pm
BOI
- BOS
1 stop10h 21m
Delta
Deal found 2/8![Delta logo]()
$293
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:52 pm
BOS
- BOI
2 stops11h 46m
American Airlines
Tue 5/121:53 pm
BOI
- BOS
1 stop8h 06m
American Airlines
Deal found 2/8![American Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:50 am
BOS
- BOI
1 stop10h 15m
Delta
Tue 3/2411:30 pm
BOI
- BOS
1 stop9h 58m
Delta
Deal found 2/7![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:00 am
BOS
- SUN
1 stop7h 53m
United Airlines
Wed 3/2512:34 pm
SUN
- BOS
1 stop6h 54m
United Airlines
Deal found 2/8![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:05 am
BOS
- BOI
1 stop8h 21m
Delta
Tue 5/126:00 am
BOI
- BOS
1 stop7h 49m
Delta
Deal found 2/8![Delta logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:24 pm
BOS
- IDA
1 stop24h 19m
Alaska Airlines
Tue 3/175:20 pm
IDA
- BOS
1 stop11h 34m
Alaska Airlines
Deal found 2/7![Alaska Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/232:59 pm
BOS
- SUN
1 stop8h 25m
United Airlines
Thu 3/2612:34 pm
SUN
- BOS
1 stop6h 54m
United Airlines
Deal found 2/8![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/171:55 pm
BOS
- GEG
1 stop10h 25m
Delta
Sat 3/212:15 pm
GEG
- BOS
1 stop6h 34m
Delta
Deal found 2/6![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:07 pm
BOS
- GEG
2 stops12h 11m
United Airlines
Thu 3/126:37 pm
GEG
- BOS
1 stop8h 14m
United Airlines
Deal found 2/6![United Airlines logo]()
$342
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:50 pm
BOS
- JAC
2 stops18h 28m
American Airlines
Fri 3/61:44 pm
JAC
- BOS
2 stops17h 16m
American Airlines
Deal found 2/8![American Airlines logo]()
$378
This Expedia deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:00 am
BOS
- SUN
1 stop13h 22m
Alaska Airlines
Mon 3/97:04 pm
SUN
- BOS
1 stop9h 50m
Alaska Airlines
Deal found 2/6![Alaska Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:09 pm
BOS
- SUN
1 stop8h 10m
United Airlines
Fri 3/61:29 pm
SUN
- BOS
2 stops14h 22m
United Airlines
Deal found 2/6![United Airlines logo]()
$346
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:00 am
BOS
- JAC
1 stop8h 41m
American Airlines
Tue 4/141:25 pm
JAC
- BOS
1 stop8h 34m
American Airlines
Deal found 2/8![American Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:24 pm
BOS
- BOI
1 stop17h 16m
Alaska Airlines
Mon 3/168:27 pm
BOI
- BOS
1 stop8h 27m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:15 am
BOS
- IDA
1 stop8h 12m
Delta
Mon 4/136:58 pm
IDA
- BOS
1 stop9h 02m
Delta
Deal found 2/8![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:00 am
BOS
- SUN
1 stop7h 53m
United Airlines
Wed 3/187:00 am
SUN
- BOS
2 stops12h 41m
United Airlines
Deal found 2/9![United Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:15 am
BOS
- IDA
1 stop8h 11m
Delta
Sat 5/96:54 pm
IDA
- BOS
1 stop9h 27m
Delta
Deal found 2/5![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:10 pm
BOS
- SUN
1 stop19h 08m
Alaska Airlines
Fri 3/2712:00 pm
SUN
- BOS
1 stop9h 59m
Alaska Airlines
Deal found 2/7![Alaska Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/94:46 pm
BOS
- BOI
1 stop7h 57m
United Airlines
Thu 3/196:55 pm
BOI
- BOS
1 stop9h 13m
United Airlines
Deal found 2/7![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:15 am
BOS
- IDA
1 stop8h 12m
Delta
Mon 4/136:58 pm
IDA
- BOS
1 stop9h 02m
Delta
Deal found 2/8![Delta logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/127:00 am
BOS
- JAC
1 stop30h 08m
Alaska Airlines
Sun 3/1511:48 am
JAC
- BOS
1 stop27h 36m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:00 am
BOS
- JAC
1 stop9h 02m
United Airlines
Mon 4/132:35 pm
JAC
- BOS
1 stop7h 24m
United Airlines
Deal found 2/8![United Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:05 am
BOS
- BOI
1 stop8h 21m
Delta
Thu 5/1412:16 pm
BOI
- BOS
1 stop10h 21m
Delta
Deal found 2/8![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/277:00 am
BOS
- SUN
1 stop8h 44m
United Airlines
Thu 3/2612:34 pm
SUN
- BOS
1 stop6h 54m
United Airlines
Deal found 2/7![United Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:10 am
BOS
- BOI
1 stop10h 45m
Delta
Thu 5/1412:16 pm
BOI
- BOS
1 stop10h 21m
Delta
Deal found 2/8![Delta logo]()
$357
Last-minute flights from Boston to IdahoDiscover last-minute flight deals from Boston to Idaho. Data last updated February 9, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Idaho. Data last updated February 9, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:00 am
BOS
- GEG
1 stop8h 29m
Alaska Airlines
Wed 3/48:29 pm
GEG
- BOS
1 stop7h 25m
Alaska Airlines
Deal found 2/7![Alaska Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:30 am
BOS
- GEG
1 stop8h 14m
American Airlines
Mon 3/93:10 pm
GEG
- BOS
1 stop11h 24m
American Airlines
Deal found 2/6![American Airlines logo]()
$297
This Expedia deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:00 am
BOS
- BOI
1 stop9h 58m
Alaska Airlines
Tue 3/179:00 pm
BOI
- BOS
1 stop7h 54m
Alaska Airlines
Deal found 2/6![Alaska Airlines logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:24 pm
BOS
- IDA
1 stop24h 19m
Alaska Airlines
Tue 3/175:20 pm
IDA
- BOS
1 stop11h 34m
Alaska Airlines
Deal found 2/7![Alaska Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/171:55 pm
BOS
- GEG
1 stop10h 25m
Delta
Sat 3/212:15 pm
GEG
- BOS
1 stop6h 34m
Delta
Deal found 2/6![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:15 am
BOS
- JAC
1 stop7h 55m
Delta
Wed 3/251:35 pm
JAC
- BOS
1 stop8h 14m
Delta
Deal found 2/6![Delta logo]()
$328
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:00 am
BOS
- GEG
1 stop8h 41m
United Airlines
Wed 3/256:37 pm
GEG
- BOS
1 stop8h 14m
United Airlines
Deal found 2/5![United Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:30 am
BOS
- BOI
1 stop8h 30m
American Airlines
Wed 3/251:31 pm
BOI
- BOS
1 stop7h 30m
American Airlines
Deal found 2/7![American Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:50 am
BOS
- BOI
1 stop10h 15m
Delta
Tue 3/2411:30 pm
BOI
- BOS
1 stop9h 58m
Delta
Deal found 2/7![Delta logo]()
$293
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:30 am
BOS
- BOI
1 stop8h 30m
American Airlines
Tue 3/241:31 pm
BOI
- BOS
1 stop8h 34m
American Airlines
Deal found 2/8![American Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:15 am
BOS
- JAC
1 stop7h 55m
Delta
Wed 4/11:10 pm
JAC
- BOS
1 stop8h 49m
Delta
Deal found 2/6![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:30 am
BOS
- BOI
1 stop9h 12m
American Airlines
Tue 3/316:33 pm
BOI
- BOS
1 stop9h 01m
American Airlines
Deal found 2/8![American 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 9, 2026.
Search for one-way flight options from Boston to Idaho. Find affordable one-way fares based on user searches. Data last updated February 9, 2026.
This American Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:15 am
BOS
- GEG
1 stop10h 33m
American Airlines
Deal found 2/7![American Airlines logo]()
$129
This United Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:00 am
BOS
- GEG
2 stops12h 16m
United Airlines
Deal found 2/7![United Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:27 am
BOS
- BOI
3 stops32h 24m
Multiple Airlines
Deal found 2/5![Multiple Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:00 am
BOS
- BOI
2 stops31h 51m
Frontier
Deal found 2/5![Frontier logo]()
$141
This Expedia deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:15 am
BOS
- SUN
1 stop13h 57m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$144
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/266:10 pm
BOS
- JAC
1 stop19h 27m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$154
This United Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:05 pm
BOS
- GEG
2 stops12h 12m
United Airlines
Deal found 2/7![United Airlines logo]()
$157
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/21:50 pm
BOS
- BOI
1 stop11h 48m
United Airlines
Deal found 2/8![United Airlines logo]()
$169
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:15 am
BOS
- SUN
1 stop7h 46m
Delta
Deal found 2/7![Delta logo]()
$171
This Southwest deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/215:00 am
BOS
- GEG
1 stop7h 50m
Southwest
Deal found 2/7![Southwest logo]()
$179
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:45 am
BOS
- BOI
1 stop8h 56m
Delta
Deal found 2/7![Delta logo]()
$182
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:30 am
BOS
- JAC
1 stop7h 48m
American Airlines
Deal found 2/6![American Airlines logo]()
$184
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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $237 (United Airlines) |
One-way from | $129 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $451 |
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 9, 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
Wed 3/18
11:02 am-5:51 pm
1 stop9h 49m
Spokane
Wed 3/25
6:37 pm-7:45 am
2 stops10h 08m
$242
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Tue 4/28
7:00 am-1:23 pm
1 stop9h 23m
Spokane
Sat 5/2
7:41 pm-7:12 am
1 stop8h 31m
$257
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Sat 5/2
4:33 pm-11:59 pm
1 stop9h 26m
Boise Air Term. Gowen Fld
Sat 5/9
6:08 pm-7:12 am
1 stop11h 04m
$257
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Sat 5/2
4:50 pm-9:56 pm
1 stop7h 06m
Boise Air Term. Gowen Fld
Tue 5/12
8:55 pm-7:35 am
1 stop8h 40m
$293
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Sat 5/2
7:37 am-4:14 pm
1 stop10h 37m
Boise Air Term. Gowen Fld
Wed 5/13
12:16 pm-12:37 am
1 stop10h 21m
$293
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Wed 3/18
5:50 am-2:05 pm
1 stop10h 15m
Boise Air Term. Gowen Fld
Tue 3/24
11:30 pm-11:28 am
1 stop9h 58m
$293
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Wed 5/6
8:05 am-2:26 pm
1 stop8h 21m
Boise Air Term. Gowen Fld
Tue 5/12
6:00 am-3:49 pm
1 stop7h 49m
$293
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Tue 3/17
1:55 pm-9:20 pm
1 stop10h 25m
Spokane
Sat 3/21
2:15 pm-11:49 pm
1 stop6h 34m
$302
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Wed 3/18
6:30 am-1:00 pm
1 stop8h 30m
Boise Air Term. Gowen Fld
Tue 3/24
1:31 pm-12:05 am
1 stop8h 34m
$318
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Tue 5/5
12:52 pm-10:38 pm
2 stops11h 46m
Boise Air Term. Gowen Fld
Tue 5/12
1:53 pm-11:59 pm
1 stop8h 06m
$320
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-BOI
BOS-SUN
BOS-JAC
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-BOI
BOS-SUN
BOS-JAC
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 9, 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
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
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
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 February 9, 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 February 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$239 | Average$492 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$264 | Average$486 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$282 | Average$629 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$588 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$370 | Average$466 | FlexibilityNo cancel fee | On-time63% |