$154+ Cheap flights from Idaho to New Hampshire
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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MHT
Aug 3 — Aug 101
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to New Hampshire with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Idaho to New HampshireExplore the most affordable flight options available from Idaho to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 4, 2026.
Explore the most affordable flight options available from Idaho to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 4, 2026.
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:50 pm
BOI
- BOS
1 stop7h 09m
Delta
Mon 9/144:00 pm
BOS
- BOI
1 stop9h 58m
Delta
Deal found 7/3![Delta logo]()
$313
This Southwest deal was found by Cheapflights users on 6/29. 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.
Tue 11/178:20 am
BOI
- BOS
1 stop9h 20m
Southwest
Thu 11/195:00 am
BOS
- BOI
1 stop8h 00m
Southwest
Deal found 6/29![Southwest logo]()
$315
This Southwest deal was found by Cheapflights users on 6/30. 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.
Tue 8/112:25 pm
BOI
- BOS
1 stop7h 40m
Southwest
Tue 8/189:05 am
BOS
- BOI
1 stop12h 40m
Southwest
Deal found 6/30![Southwest logo]()
$318
This Delta deal was found by Cheapflights users on 6/30. 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 9/3012:14 pm
BOI
- BOS
1 stop10h 20m
Delta
Mon 10/57:45 am
BOS
- BOI
1 stop11h 34m
Delta
Deal found 6/30![Delta logo]()
$320
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:44 pm
BOI
- BOS
1 stop7h 15m
United Airlines
Sun 11/18:05 am
BOS
- BOI
1 stop10h 54m
United Airlines
Deal found 7/1![United Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
Tue 8/252:25 pm
BOI
- BOS
1 stop7h 40m
Southwest
Thu 8/273:25 pm
BOS
- BOI
2 stops9h 10m
Southwest
Deal found 7/2![Southwest logo]()
$325
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 10/2412:19 pm
BOI
- BOS
1 stop9h 36m
American Airlines
Sun 11/16:00 am
BOS
- BOI
1 stop10h 33m
American Airlines
Deal found 6/30![American Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 10/57:19 pm
BOI
- BOS
1 stop10h 21m
Delta
Sat 10/105:50 am
BOS
- BOI
1 stop8h 38m
Delta
Deal found 7/3![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 6/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:24 pm
GEG
- BOS
1 stop7h 45m
Alaska Airlines
Sat 9/197:59 pm
BOS
- GEG
1 stop15h 34m
Alaska Airlines
Deal found 6/29![Alaska Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 6/29. 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.
Sun 8/237:00 am
BOI
- BOS
1 stop15h 25m
Southwest
Sat 9/53:55 pm
BOS
- BOI
1 stop7h 35m
Southwest
Deal found 6/29![Southwest logo]()
$328
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/142:55 pm
BOI
- BOS
1 stop7h 35m
Southwest
Wed 8/192:45 pm
BOS
- BOI
2 stops10h 35m
Southwest
Deal found 7/3![Southwest logo]()
$331
This Southwest deal was found by Cheapflights users on 6/29. 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.
Tue 11/176:40 am
GEG
- BOS
2 stops12h 15m
Southwest
Wed 12/25:00 am
BOS
- GEG
1 stop8h 15m
Southwest
Deal found 6/29![Southwest logo]()
$332
Best flights from Idaho to New HampshireDiscover carefully curated flight deals from Idaho to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 4, 2026.
Discover carefully curated flight deals from Idaho to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 4, 2026.
This Delta deal was found by Cheapflights users on 7/1. 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.
Wed 9/92:50 pm
BOI
- BOS
1 stop7h 09m
Delta
Mon 9/144:00 pm
BOS
- BOI
1 stop9h 58m
Delta
Deal found 7/1![Delta logo]()
$313
This Southwest deal was found by Cheapflights users on 6/29. 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.
Tue 11/175:50 am
BOI
- BOS
2 stops8h 55m
Southwest
Thu 11/195:20 am
BOS
- BOI
2 stops10h 55m
Southwest
Deal found 6/29![Southwest logo]()
$325
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 10/227:16 am
GEG
- BOS
1 stop19h 05m
Alaska Airlines
Mon 10/266:37 pm
BOS
- GEG
1 stop8h 17m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$348
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:32 am
GEG
- MHT
2 stops13h 20m
American Airlines
Wed 12/211:37 am
MHT
- GEG
2 stops14h 31m
American Airlines
Deal found 7/1![American Airlines logo]()
$456
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:00 am
JAC
- BOS
2 stops14h 59m
United Airlines
Mon 10/56:00 am
BOS
- JAC
1 stop7h 21m
United Airlines
Deal found 7/3![United Airlines logo]()
$478
This Delta deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/177:15 pm
GEG
- BOS
1 stop8h 15m
Delta
Tue 8/257:45 am
BOS
- GEG
1 stop10h 34m
Delta
Deal found 7/4![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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.
Sun 8/167:00 am
BOI
- BOS
1 stop15h 25m
Southwest
Sun 8/235:20 am
BOS
- BOI
1 stop7h 15m
Southwest
Deal found 7/3![Southwest logo]()
$344
This Delta deal was found by Cheapflights users on 6/29. 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.
Fri 8/1410:56 pm
GEG
- BOS
1 stop9h 14m
Delta
Sat 8/295:51 am
BOS
- GEG
1 stop10h 06m
Delta
Deal found 6/29![Delta logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/197:48 pm
BOI
- BOS
1 stop9h 51m
Alaska Airlines
Wed 9/237:12 am
BOS
- BOI
1 stop10h 18m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 6/29. 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 11/187:40 am
GEG
- MHT
2 stops11h 20m
Southwest
Wed 12/212:45 pm
MHT
- GEG
2 stops12h 00m
Southwest
Deal found 6/29![Southwest logo]()
$357
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:15 pm
GEG
- BOS
1 stop10h 15m
Delta
Wed 9/305:55 am
BOS
- GEG
1 stop10h 03m
Delta
Deal found 7/2![Delta logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/94:20 pm
BOI
- BOS
2 stops11h 49m
Alaska Airlines
Mon 9/147:59 pm
BOS
- BOI
1 stop15h 57m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$393
This Southwest deal was found by Cheapflights users on 6/30. 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.
Thu 9/2412:20 pm
GEG
- BOS
1 stop9h 05m
Southwest
Sun 9/275:20 am
BOS
- GEG
1 stop7h 40m
Southwest
Deal found 6/30![Southwest logo]()
$359
This Delta deal was found by Cheapflights users on 7/1. 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.
Fri 8/2112:36 pm
GEG
- BOS
1 stop8h 05m
Delta
Tue 8/257:10 am
BOS
- GEG
1 stop8h 47m
Delta
Deal found 7/1![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 7/286:30 am
GEG
- MHT
2 stops14h 07m
American Airlines
Tue 8/117:16 am
MHT
- GEG
1 stop9h 21m
American Airlines
Deal found 7/3![American Airlines logo]()
$481
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:28 am
JAC
- BOS
2 stops12h 31m
United Airlines
Mon 9/77:30 am
BOS
- JAC
2 stops12h 19m
United Airlines
Deal found 7/4![United Airlines logo]()
$483
This Delta deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 8/1812:36 pm
GEG
- BOS
1 stop9h 49m
Delta
Thu 8/276:45 pm
BOS
- GEG
1 stop8h 08m
Delta
Deal found 7/4![Delta logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 9/102:16 pm
BOI
- BOS
2 stops13h 53m
Alaska Airlines
Mon 9/147:59 pm
BOS
- BOI
1 stop15h 57m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$413
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:37 am
IDA
- BOS
2 stops12h 12m
American Airlines
Wed 10/216:00 am
BOS
- IDA
1 stop9h 20m
American Airlines
Deal found 7/1![American Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 12/55:57 pm
IDA
- BOS
2 stops12h 47m
United Airlines
Tue 12/87:30 am
BOS
- IDA
1 stop8h 05m
United Airlines
Deal found 7/3![United Airlines logo]()
$484
This Southwest deal was found by Cheapflights users on 6/29. 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.
Thu 10/16:00 pm
BOI
- BOS
1 stop10h 50m
Southwest
Sun 10/45:00 am
BOS
- BOI
1 stop12h 35m
Southwest
Deal found 6/29![Southwest logo]()
$402
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/137:54 pm
GEG
- BOS
1 stop8h 41m
Delta
Thu 8/271:55 pm
BOS
- GEG
1 stop10h 35m
Delta
Deal found 7/3![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/195:20 am
GEG
- PWM
2 stops13h 40m
American Airlines
Sun 8/236:00 am
PWM
- GEG
2 stops10h 37m
American Airlines
Deal found 7/2![American Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:05 am
GEG
- PWM
1 stop7h 41m
United Airlines
Sat 10/246:00 am
PWM
- GEG
1 stop9h 24m
United Airlines
Deal found 7/1![United Airlines logo]()
$492
This Southwest deal was found by Cheapflights users on 7/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:30 am
GEG
- BOS
2 stops11h 15m
Southwest
Wed 10/211:05 pm
BOS
- GEG
2 stops11h 35m
Southwest
Deal found 7/1![Southwest logo]()
$410
This Delta deal was found by Cheapflights users on 6/30. 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 10/216:56 pm
IDA
- BOS
1 stop9h 29m
Delta
Wed 10/285:45 am
BOS
- IDA
2 stops14h 31m
Delta
Deal found 6/30![Delta logo]()
$374
This American Airlines deal was found by Cheapflights users on 6/29. 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.
Wed 10/71:50 pm
IDA
- BOS
1 stop7h 46m
American Airlines
Tue 10/137:00 am
BOS
- IDA
1 stop8h 20m
American Airlines
Deal found 6/29![American Airlines logo]()
$499
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/146:55 am
GEG
- MHT
2 stops12h 30m
Southwest
Wed 8/2612:30 pm
MHT
- GEG
2 stops12h 55m
Southwest
Deal found 7/2![Southwest logo]()
$417
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:45 pm
JAC
- BOS
2 stops9h 26m
United Airlines
Sun 9/69:30 am
BOS
- JAC
2 stops10h 19m
United Airlines
Deal found 7/3![United Airlines logo]()
$517
This Southwest deal was found by Cheapflights users on 6/29. 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 8/146:00 am
GEG
- BOS
2 stops10h 40m
Southwest
Fri 8/281:10 pm
BOS
- GEG
2 stops11h 50m
Southwest
Deal found 6/29![Southwest logo]()
$419
Last-minute flights from Idaho to New HampshireDiscover last-minute flight deals from Idaho to New Hampshire. Data last updated July 4, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to New Hampshire. Data last updated July 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:36 pm
BOI
- BOS
1 stop10h 09m
American Airlines
Mon 8/177:30 am
BOS
- BOI
1 stop8h 29m
American Airlines
Deal found 7/1![American Airlines logo]()
$313
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Wed 8/55:40 am
GEG
- BOS
1 stop11h 02m
American Airlines
Tue 8/117:10 am
BOS
- GEG
1 stop9h 27m
American Airlines
Deal found 6/30![American Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:12 pm
BOI
- BOS
1 stop9h 47m
American Airlines
Thu 8/136:14 am
BOS
- BOI
1 stop10h 15m
American Airlines
Deal found 7/1![American Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 7/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/112:25 pm
BOI
- BOS
1 stop7h 40m
Southwest
Tue 8/182:10 pm
BOS
- BOI
2 stops11h 00m
Southwest
Deal found 7/1![Southwest logo]()
$318
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/137:28 pm
BOI
- BOS
1 stop10h 07m
Delta
Sun 8/236:50 am
BOS
- BOI
1 stop7h 59m
Delta
Deal found 7/3![Delta logo]()
$334
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/1412:12 pm
BOI
- BOS
1 stop7h 54m
American Airlines
Mon 8/175:51 am
BOS
- BOI
1 stop10h 08m
American Airlines
Deal found 7/2![American Airlines logo]()
$326
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/142:55 pm
BOI
- BOS
1 stop7h 35m
Southwest
Wed 8/192:45 pm
BOS
- BOI
2 stops10h 35m
Southwest
Deal found 7/3![Southwest logo]()
$331
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:36 pm
GEG
- BOS
1 stop8h 05m
Delta
Sat 8/295:30 am
BOS
- GEG
1 stop8h 51m
Delta
Deal found 7/3![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/142:55 pm
BOI
- BOS
1 stop7h 35m
Southwest
Fri 8/2111:15 am
BOS
- BOI
1 stop11h 25m
Southwest
Deal found 7/3![Southwest logo]()
$339
This Southwest deal was found by Cheapflights users on 6/29. 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.
Sun 8/237:00 am
BOI
- BOS
1 stop15h 25m
Southwest
Sat 9/53:55 pm
BOS
- BOI
1 stop7h 35m
Southwest
Deal found 6/29![Southwest logo]()
$328
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
Tue 8/252:25 pm
BOI
- BOS
1 stop7h 40m
Southwest
Thu 8/273:25 pm
BOS
- BOI
2 stops9h 10m
Southwest
Deal found 7/2![Southwest logo]()
$325
This Delta deal was found by Cheapflights users on 7/1. 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.
Sun 8/3010:56 pm
GEG
- BOS
1 stop9h 14m
Delta
Wed 9/96:05 am
BOS
- GEG
1 stop9h 09m
Delta
Deal found 7/1![Delta logo]()
$348
One-way flights from Idaho to New HampshireSearch for one-way flight options from Idaho to New Hampshire. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
Search for one-way flight options from Idaho to New Hampshire. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
This Southwest deal was found by Cheapflights users on 6/29. 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.
Tue 8/252:25 pm
BOI
- BOS
1 stop7h 40m
Southwest
Deal found 6/29![Southwest logo]()
$154
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:59 pm
BOI
- BOS
1 stop9h 26m
Delta
Deal found 7/3![Delta logo]()
$157
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 9/510:36 am
BOI
- BOS
2 stops10h 58m
United Airlines
Deal found 7/4![United Airlines logo]()
$162
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 10/32:50 pm
BOI
- BOS
1 stop7h 09m
Delta
Deal found 7/3![Delta logo]()
$165
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/1812:36 pm
GEG
- BOS
1 stop9h 49m
Delta
Deal found 7/3![Delta logo]()
$169
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:05 pm
BOI
- BOS
1 stop10h 56m
United Airlines
Deal found 7/1![United Airlines logo]()
$170
This Southwest deal was found by Cheapflights users on 6/30. 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.
Sun 8/167:00 am
BOI
- BOS
1 stop15h 25m
Southwest
Deal found 6/30![Southwest logo]()
$175
This United Airlines deal was found by Cheapflights users on 6/29. 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 9/1912:28 pm
BOI
- BOS
2 stops9h 31m
United Airlines
Deal found 6/29![United Airlines logo]()
$176
This Southwest deal was found by Cheapflights users on 6/29. 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.
Thu 8/1312:20 pm
GEG
- BOS
1 stop9h 05m
Southwest
Deal found 6/29![Southwest logo]()
$176
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/1211:10 pm
BOI
- BOS
1 stop8h 29m
Delta
Deal found 7/2![Delta logo]()
$178
This United Airlines deal was found by Cheapflights users on 6/29. 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.
Fri 7/1012:34 pm
BOI
- BOS
2 stops9h 25m
United Airlines
Deal found 6/29![United Airlines logo]()
$179
This Alaska Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/105:07 am
GEG
- BOS
1 stop8h 46m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$180
Find flight deals from Idaho to New Hampshire
Keep the following information in mind while searching for Idaho to New Hampshire flight deals. Data was last updated July 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $313 (Delta) |
One-way from | $154 (Southwest) |
Popular in | April |
Cheapest in | December |
Average price | $477 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to New Hampshire 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 July 4, 2026.
Use the filters below to find and compare flights from Idaho to New Hampshire that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseBoston
BOI - BOS
BOIBOS
Boise Air Term. Gowen Fld
Wed 9/9
2:50 pm-11:59 pm
1 stop7h 09m
Boston Logan Intl
Mon 9/14
4:00 pm-11:58 pm
1 stop9h 58m
$313
BoiseBoston
BOI - BOS
BOIBOS
Boise Air Term. Gowen Fld
Tue 11/17
5:50 am-4:45 pm
2 stops8h 55m
Boston Logan Intl
Thu 11/19
5:20 am-2:15 pm
2 stops10h 55m
$325
SpokaneBoston
GEG - BOS
GEGBOS
Spokane
Mon 8/17
7:15 pm-6:30 am
1 stop8h 15m
Boston Logan Intl
Tue 8/25
7:45 am-3:19 pm
1 stop10h 34m
$337
SpokaneBoston
GEG - BOS
GEGBOS
Spokane
Fri 8/14
10:56 pm-11:10 am
1 stop9h 14m
Boston Logan Intl
Sat 8/29
5:51 am-12:57 pm
1 stop10h 06m
$337
SpokaneBoston
GEG - BOS
GEGBOS
Spokane
Wed 9/9
5:15 pm-6:30 am
1 stop10h 15m
Boston Logan Intl
Wed 9/30
5:55 am-12:58 pm
1 stop10h 03m
$337
SpokaneBoston
GEG - BOS
GEGBOS
Spokane
Fri 8/21
12:36 pm-11:41 pm
1 stop8h 05m
Boston Logan Intl
Tue 8/25
7:10 am-12:57 pm
1 stop8h 47m
$337
SpokaneBoston
GEG - BOS
GEGBOS
Spokane
Tue 8/18
12:36 pm-1:25 am
1 stop9h 49m
Boston Logan Intl
Thu 8/27
6:45 pm-11:53 pm
1 stop8h 08m
$337
SpokaneBoston
GEG - BOS
GEGBOS
Spokane
Thu 8/13
7:54 pm-7:35 am
1 stop8h 41m
Boston Logan Intl
Thu 8/27
1:55 pm-9:30 pm
1 stop10h 35m
$337
BoiseBoston
BOI - BOS
BOIBOS
Boise Air Term. Gowen Fld
Sun 8/16
7:00 am-12:25 am
1 stop15h 25m
Boston Logan Intl
Sun 8/23
5:20 am-10:35 am
1 stop7h 15m
$344
SpokaneBoston
GEG - BOS
GEGBOS
Spokane
Thu 10/22
7:16 am-5:21 am
1 stop19h 05m
Boston Logan Intl
Mon 10/26
6:37 pm-11:54 pm
1 stop8h 17m
$348
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to New Hampshire
Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Idaho with our price prediction graph.
BOI-BOS
GEG-BOS
GEG-MHT
JAC-BOS
IDA-BOS
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 Idaho to New Hampshire
USID-USNH
BOI-BOS
GEG-BOS
GEG-MHT
JAC-BOS
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing New Hampshire
Get insights into the airlines that provide service to New Hampshire. 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 New Hampshire. Reviews last updated July 4, 2026.
Read reviews from past customers who have flown American Airlines from Idaho to New Hampshire. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.4
Overall
7.1
Comfort
7.2
Crew
7.9
Entertainment
6.8
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Food
6.4
Overall
7.1
Comfort
7.2
Crew
7.9
Entertainment
6.8
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Related info for your journey
Find useful and relevant information for your journey from Idaho to New Hampshire. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Idaho to New Hampshire
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to New Hampshire by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to New Hampshire by cabin class
Find flights from Idaho to New Hampshire, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and New Hampshire flights
Browse other Idaho and New Hampshire flight options. Last updated on July 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from New Hampshire
Find the right flight back to Idaho after your stay in New Hampshire
Idaho to New Hampshire flights
Consider these flights traveling from Idaho to New Hampshire.
Top airline flying from Idaho to New Hampshire
Discover the top airline that operate flights from Idaho to New Hampshire. 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 July 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$352 | Average$567 | FlexibilityNo cancel fee | On-time71% |