$129+ Cheap flights from New Hampshire 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — BOI
Aug 29 — Sep 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from New Hampshire to Idaho 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from New Hampshire to Idaho
Cheapest
Best
Last-minute
One-way
Cheapest flights from New Hampshire to IdahoExplore the most affordable flight options available from New Hampshire to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.
Explore the most affordable flight options available from New Hampshire to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:10 am
BOS
- BOI
1 stop9h 19m
American Airlines
Sat 8/292:58 pm
BOI
- BOS
1 stop7h 00m
American Airlines
Deal found 7/26![American Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:25 pm
BOS
- BOI
2 stops9h 10m
Southwest
Sat 8/291:50 pm
BOI
- BOS
1 stop8h 35m
Southwest
Deal found 7/28![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:45 am
BOS
- BOI
1 stop9h 33m
Delta
Fri 8/2812:23 pm
BOI
- BOS
1 stop9h 54m
Delta
Deal found 7/27![Delta logo]()
$267
This Southwest deal was found by Cheapflights users on 7/29. 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 8/213:55 pm
BOS
- GEG
1 stop9h 45m
Southwest
Thu 8/2712:20 pm
GEG
- BOS
1 stop9h 05m
Southwest
Deal found 7/29![Southwest logo]()
$277
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:27 am
BOS
- BOI
1 stop7h 35m
American Airlines
Mon 8/3112:12 pm
BOI
- BOS
1 stop7h 54m
American Airlines
Deal found 7/28![American Airlines logo]()
$290
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 8/256:00 am
BOS
- GEG
1 stop8h 39m
United Airlines
Sat 8/291:37 pm
GEG
- BOS
1 stop7h 13m
United Airlines
Deal found 7/29![United Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/274:05 pm
BOS
- BOI
1 stop9h 48m
Delta
Sat 9/122:50 pm
BOI
- BOS
1 stop7h 09m
Delta
Deal found 7/27![Delta logo]()
$300
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:51 am
BOS
- BOI
1 stop10h 08m
American Airlines
Sat 8/222:58 pm
BOI
- BOS
1 stop7h 00m
American Airlines
Deal found 7/28![American Airlines logo]()
$307
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/295:01 pm
BOS
- BOI
1 stop7h 52m
United Airlines
Sun 8/3012:24 pm
BOI
- BOS
1 stop9h 10m
United Airlines
Deal found 7/29![United Airlines logo]()
$308
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:45 am
BOS
- BOI
1 stop9h 33m
Delta
Fri 9/112:11 pm
BOI
- BOS
1 stop7h 20m
Delta
Deal found 7/27![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:05 am
BOS
- BOI
1 stop12h 40m
Southwest
Wed 9/28:20 am
BOI
- BOS
2 stops11h 50m
Southwest
Deal found 7/29![Southwest logo]()
$311
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 8/282:32 pm
BOS
- GEG
1 stop9h 10m
American Airlines
Mon 8/315:40 am
GEG
- BOS
1 stop11h 02m
American Airlines
Deal found 7/29![American Airlines logo]()
$312
Best flights from New Hampshire to IdahoDiscover carefully curated flight deals from New Hampshire to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2026.
Discover carefully curated flight deals from New Hampshire to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2026.
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:25 pm
BOS
- GEG
2 stops9h 35m
Southwest
Thu 8/2712:20 pm
GEG
- BOS
1 stop9h 05m
Southwest
Deal found 7/26![Southwest logo]()
$282
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 8/2512:41 pm
BOS
- GEG
2 stops11h 05m
United Airlines
Sat 8/291:37 pm
GEG
- BOS
1 stop7h 13m
United Airlines
Deal found 7/29![United Airlines logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:59 pm
BOS
- BOI
1 stop15h 57m
Alaska Airlines
Tue 9/228:25 pm
BOI
- BOS
1 stop7h 44m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:50 am
BOS
- BOI
1 stop7h 59m
Delta
Wed 9/91:06 pm
BOI
- BOS
1 stop8h 47m
Delta
Deal found 7/26![Delta logo]()
$333
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:00 am
PWM
- BOI
1 stop9h 33m
American Airlines
Wed 10/2812:19 pm
BOI
- PWM
2 stops9h 27m
American Airlines
Deal found 7/26![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 11/125:30 am
BOS
- BOI
2 stops10h 15m
United Airlines
Mon 11/162:51 pm
BOI
- BOS
1 stop6h 59m
United Airlines
Deal found 7/29![United Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 7/29. 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 8/2711:15 am
BOS
- BOI
1 stop11h 25m
Southwest
Thu 9/311:30 am
BOI
- BOS
2 stops8h 45m
Southwest
Deal found 7/29![Southwest logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 9/307:12 am
BOS
- GEG
1 stop9h 33m
Alaska Airlines
Sat 10/37:32 pm
GEG
- BOS
1 stop7h 40m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:55 pm
BOS
- BOI
1 stop10h 02m
Delta
Tue 9/86:44 pm
BOI
- BOS
1 stop9h 46m
Delta
Deal found 7/25![Delta logo]()
$354
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:55 pm
BOS
- GEG
1 stop9h 45m
Southwest
Tue 8/257:00 am
GEG
- BOS
2 stops11h 25m
Southwest
Deal found 7/28![Southwest logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:00 am
BOS
- GEG
1 stop9h 43m
Alaska Airlines
Sun 11/83:16 pm
GEG
- BOS
1 stop13h 12m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:55 am
BOS
- GEG
1 stop10h 19m
Delta
Sun 9/137:30 pm
GEG
- BOS
1 stop9h 10m
Delta
Deal found 7/27![Delta logo]()
$368
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/96:00 am
PWM
- BOI
1 stop7h 26m
United Airlines
Wed 9/237:05 pm
BOI
- PWM
2 stops12h 03m
United Airlines
Deal found 7/25![United Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:50 am
BOS
- GEG
2 stops11h 45m
Southwest
Mon 9/2812:20 pm
GEG
- BOS
1 stop9h 10m
Southwest
Deal found 7/25![Southwest logo]()
$352
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 10/77:03 am
BOS
- GEG
1 stop8h 51m
Alaska Airlines
Sun 10/1112:42 pm
GEG
- BOS
1 stop8h 17m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:05 am
BOS
- GEG
1 stop9h 24m
Delta
Tue 12/17:43 pm
GEG
- BOS
1 stop7h 50m
Delta
Deal found 7/28![Delta logo]()
$375
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:30 am
BOS
- IDA
2 stops9h 53m
United Airlines
Tue 9/12:25 pm
IDA
- BOS
1 stop7h 29m
United Airlines
Deal found 7/26![United Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:03 am
PWM
- BOI
2 stops13h 24m
American Airlines
Wed 9/238:05 am
BOI
- PWM
2 stops13h 42m
American Airlines
Deal found 7/26![American Airlines logo]()
$475
This Southwest deal was found by Cheapflights users on 7/29. 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 9/234:45 pm
BOS
- GEG
1 stop8h 45m
Southwest
Wed 9/301:55 pm
GEG
- BOS
1 stop7h 15m
Southwest
Deal found 7/29![Southwest logo]()
$383
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/222:35 pm
BOS
- IDA
2 stops9h 57m
Delta
Sat 8/297:00 pm
IDA
- BOS
1 stop9h 30m
Delta
Deal found 7/27![Delta logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:00 am
BOS
- BOI
2 stops16h 27m
Alaska Airlines
Sat 9/124:27 pm
BOI
- BOS
1 stop11h 42m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:01 am
BOS
- GEG
1 stop8h 38m
United Airlines
Sat 8/295:00 am
GEG
- BOS
2 stops11h 19m
United Airlines
Deal found 7/26![United Airlines logo]()
$392
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:05 am
PWM
- BOI
1 stop8h 44m
Delta
Mon 9/2111:10 pm
BOI
- PWM
2 stops12h 06m
Delta
Deal found 7/25![Delta logo]()
$384
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:05 pm
PWM
- BOI
2 stops11h 50m
Southwest
Mon 11/28:30 pm
BOI
- PWM
2 stops11h 25m
Southwest
Deal found 7/26![Southwest logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 9/19:33 am
BOS
- BOI
1 stop9h 42m
Alaska Airlines
Sat 9/52:17 pm
BOI
- BOS
2 stops13h 52m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/135:45 am
BOS
- BOI
1 stop8h 48m
Delta
Mon 12/287:30 pm
BOI
- BOS
1 stop9h 03m
Delta
Deal found 7/27![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 9/12:00 pm
BOS
- BOI
1 stop9h 24m
United Airlines
Sat 9/52:44 pm
BOI
- BOS
1 stop7h 06m
United Airlines
Deal found 7/29![United Airlines logo]()
$433
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/119:05 am
BOS
- BOI
1 stop12h 40m
Southwest
Fri 8/142:55 pm
BOI
- BOS
1 stop7h 35m
Southwest
Deal found 7/28![Southwest logo]()
$405
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:30 am
PWM
- JAC
2 stops11h 47m
American Airlines
Tue 8/254:30 pm
JAC
- PWM
2 stops17h 08m
American Airlines
Deal found 7/27![American Airlines logo]()
$613
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 12/87:08 am
BOS
- IDA
1 stop10h 21m
Alaska Airlines
Wed 12/96:15 am
IDA
- BOS
1 stop8h 31m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$433
Last-minute flights from New Hampshire to IdahoDiscover last-minute flight deals from New Hampshire to Idaho. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from New Hampshire to Idaho. Data last updated July 30, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:51 am
BOS
- BOI
1 stop10h 08m
American Airlines
Sat 8/222:58 pm
BOI
- BOS
1 stop7h 00m
American Airlines
Deal found 7/28![American Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:45 am
BOS
- BOI
1 stop9h 33m
Delta
Fri 8/2812:23 pm
BOI
- BOS
1 stop9h 54m
Delta
Deal found 7/27![Delta logo]()
$267
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:25 pm
BOS
- BOI
2 stops9h 10m
Southwest
Sat 8/291:50 pm
BOI
- BOS
1 stop8h 35m
Southwest
Deal found 7/28![Southwest logo]()
$262
This Southwest deal was found by Cheapflights users on 7/29. 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 8/213:55 pm
BOS
- GEG
1 stop9h 45m
Southwest
Thu 8/2712:20 pm
GEG
- BOS
1 stop9h 05m
Southwest
Deal found 7/29![Southwest logo]()
$277
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:10 am
BOS
- BOI
1 stop9h 19m
American Airlines
Sat 8/292:58 pm
BOI
- BOS
1 stop7h 00m
American Airlines
Deal found 7/26![American Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 8/256:00 am
BOS
- GEG
1 stop8h 39m
United Airlines
Sat 8/291:37 pm
GEG
- BOS
1 stop7h 13m
United Airlines
Deal found 7/29![United Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:05 am
BOS
- BOI
1 stop12h 40m
Southwest
Wed 9/28:20 am
BOI
- BOS
2 stops11h 50m
Southwest
Deal found 7/29![Southwest logo]()
$311
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:45 am
BOS
- BOI
1 stop11h 34m
Delta
Tue 9/156:44 pm
BOI
- BOS
1 stop9h 46m
Delta
Deal found 7/27![Delta logo]()
$300
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:45 am
BOS
- BOI
1 stop9h 33m
Delta
Fri 9/112:11 pm
BOI
- BOS
1 stop7h 20m
Delta
Deal found 7/27![Delta logo]()
$309
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 8/282:32 pm
BOS
- GEG
1 stop9h 10m
American Airlines
Mon 8/315:40 am
GEG
- BOS
1 stop11h 02m
American Airlines
Deal found 7/29![American Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:27 am
BOS
- BOI
1 stop7h 35m
American Airlines
Mon 8/3112:12 pm
BOI
- BOS
1 stop7h 54m
American Airlines
Deal found 7/28![American Airlines logo]()
$290
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/295:01 pm
BOS
- BOI
1 stop7h 52m
United Airlines
Sun 8/3012:24 pm
BOI
- BOS
1 stop9h 10m
United Airlines
Deal found 7/29![United Airlines logo]()
$308
One-way flights from New Hampshire to IdahoSearch for one-way flight options from New Hampshire to Idaho. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
Search for one-way flight options from New Hampshire to Idaho. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:08 pm
BOS
- BOI
1 stop7h 32m
United Airlines
Deal found 7/28![United Airlines logo]()
$129
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:05 am
BOS
- BOI
1 stop10h 37m
United Airlines
Deal found 7/27![United Airlines logo]()
$157
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am
BOS
- BOI
1 stop10h 33m
American Airlines
Deal found 7/26![American Airlines logo]()
$162
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:05 pm
BOS
- GEG
1 stop10h 54m
Delta
Deal found 7/29![Delta logo]()
$164
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:30 pm
BOS
- BOI
2 stops10h 05m
Southwest
Deal found 7/28![Southwest logo]()
$167
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:05 am
BOS
- GEG
1 stop8h 18m
United Airlines
Deal found 7/28![United Airlines logo]()
$171
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:48 pm
BOS
- BOI
1 stop8h 56m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$172
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:00 am
BOS
- GEG
1 stop10h 26m
American Airlines
Deal found 7/26![American Airlines logo]()
$174
This United Airlines deal was found by Cheapflights users on 7/29. 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 10/312:45 pm
BOS
- GEG
2 stops11h 04m
United Airlines
Deal found 7/29![United Airlines logo]()
$179
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/146:00 am
BOS
- BOI
1 stop11h 31m
United Airlines
Deal found 7/29![United Airlines logo]()
$179
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:55 am
BOS
- BOI
1 stop11h 24m
Delta
Deal found 7/28![Delta logo]()
$180
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:05 am
BOS
- GEG
1 stop9h 24m
Delta
Deal found 7/26![Delta logo]()
$181
Find flight deals from New Hampshire to Idaho
Keep the following information in mind while searching for New Hampshire to Idaho flight deals. Data was last updated July 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (American Airlines) |
One-way from | $129 (United Airlines) |
Popular in | June |
Cheapest in | May |
Average price | $535 |
Cheapflights Fare Finder
Customize your flight search to find flights from New Hampshire 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 July 30, 2026.
Use the filters below to find and compare flights from New Hampshire to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Fri 8/21
3:25 pm-10:00 pm
2 stops9h 35m
Spokane
Thu 8/27
12:20 pm-12:25 am
1 stop9h 05m
$282
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Tue 8/25
12:41 pm-8:46 pm
2 stops11h 05m
Spokane
Sat 8/29
1:37 pm-11:50 pm
1 stop7h 13m
$302
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Thu 9/17
7:59 pm-9:56 am
1 stop15h 57m
Boise Air Term. Gowen Fld
Tue 9/22
8:25 pm-6:09 am
1 stop7h 44m
$323
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Thu 11/12
5:30 am-1:45 pm
2 stops10h 15m
Boise Air Term. Gowen Fld
Mon 11/16
2:51 pm-11:50 pm
1 stop6h 59m
$328
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Sat 9/5
6:50 am-12:49 pm
1 stop7h 59m
Boise Air Term. Gowen Fld
Wed 9/9
1:06 pm-11:53 pm
1 stop8h 47m
$333
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Thu 8/27
11:15 am-8:40 pm
1 stop11h 25m
Boise Air Term. Gowen Fld
Thu 9/3
11:30 am-10:15 pm
2 stops8h 45m
$345
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Wed 9/30
7:12 am-1:45 pm
1 stop9h 33m
Spokane
Sat 10/3
7:32 pm-6:12 am
1 stop7h 40m
$347
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Thu 8/20
3:55 pm-10:40 pm
1 stop9h 45m
Spokane
Tue 8/25
7:00 am-9:25 pm
2 stops11h 25m
$352
BostonSpokane
BOS - GEG
BOSGEG
Boston Logan Intl
Sat 9/26
5:50 am-2:35 pm
2 stops11h 45m
Spokane
Mon 9/28
12:20 pm-12:30 am
1 stop9h 10m
$352
BostonBoise
BOS - BOI
BOSBOI
Boston Logan Intl
Fri 9/4
1:55 pm-9:57 pm
1 stop10h 02m
Boise Air Term. Gowen Fld
Tue 9/8
6:44 pm-6:30 am
1 stop9h 46m
$354
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from New Hampshire to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from New Hampshire with our price prediction graph.
BOS-BOI
BOS-GEG
PWM-BOI
BOS-IDA
PWM-JAC
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 New Hampshire to Idaho
USNH-USID
BOS-BOI
BOS-GEG
PWM-BOI
BOS-IDA
No data available for this route at this time. Please check back soon.
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 July 30, 2026.
Read reviews from past customers who have flown American Airlines from New Hampshire to Idaho. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.8
Overall
7.1
Crew
7.9
Boarding
7.5
Food
6.4
Comfort
7.2
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Entertainment
6.8
Overall
7.1
Crew
7.9
Boarding
7.5
Food
6.4
Comfort
7.2
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Related info for your journey
Find useful and relevant information for your journey from New Hampshire to Idaho. 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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Alternative routes for New Hampshire 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 New Hampshire to Idaho by cabin class
Find flights from New Hampshire to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
New Hampshire and Idaho flights
Browse other New Hampshire and Idaho flight options. Last updated on July 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Idaho
Find the right flight back to New Hampshire after your stay in Idaho
New Hampshire to Idaho flights
Consider these flights traveling from New Hampshire to Idaho.
Top airline flying from New Hampshire to Idaho
Discover the top airline that operate flights from New Hampshire 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 July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$656 | FlexibilityNo cancel fee | On-time71% |