HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho

$148+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — BOI
May 5 — May 121
Mon 5/5
Mon 5/12
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

Keep the following information in mind while searching for New Hampshire to Idaho flight deals. Data was last updated April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$296
(Alaska Airlines)

One-way from

$148
(Hawaiian Airlines)

Popular in

May

Cheapest in

January

Average price

$515
Provider with most accurate pricing for Boston Logan Intl-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Boise Air Term. Gowen Fld flights.
Search Deals
From New Hampshire to Idaho
Search Deals
One-way flight from New Hampshire to Idaho
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from New Hampshire to Idaho

Cheapest flights from New Hampshire to Idaho
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 April 30, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:40 pmBOS - GEG
1 stop8h 19mAlaska Airlines
Tue 9/232:36 pmGEG - BOS
1 stop21h 24mAlaska Airlines
Deal found 4/28$296
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:40 amBOS - GEG
1 stop7h 48mDelta
Tue 7/291:00 pmGEG - BOS
1 stop8h 15mDelta
Deal found 4/28$297
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/138:00 amBOS - GEG
1 stop9h 41mUnited Airlines
Sat 5/173:25 pmGEG - BOS
2 stops11h 14mUnited Airlines
Deal found 4/28$302
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/96:00 amPWM - BOI
1 stop8h 42mDelta
Wed 7/161:52 pmBOI - PWM
1 stop8h 39mDelta
Deal found 4/29$313
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:45 pmBOS - BOI
1 stop8h 00mUnited Airlines
Fri 5/97:10 pmBOI - BOS
1 stop9h 03mUnited Airlines
Deal found 4/28$315
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1612:41 pmBOS - JAC
1 stop9h 57mAmerican Airlines
Wed 9/243:29 pmJAC - BOS
1 stop6h 45mAmerican Airlines
Deal found 4/29$317
This Mytrip deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2210:04 amBOS - BOI
2 stops27h 17mSpirit Airlines
Mon 5/2612:16 pmBOI - BOS
2 stops18h 53mSpirit Airlines
Deal found 4/28$322
This Alaska Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:20 amBOS - BOI
1 stop9h 40mAlaska Airlines
Thu 9/117:17 pmBOI - BOS
1 stop10h 43mAlaska Airlines
Deal found 4/28$324
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/125:40 amBOS - BOI
1 stop10h 15mDelta
Tue 6/247:46 pmBOI - BOS
1 stop8h 54mDelta
Deal found 4/27$325
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/64:49 pmBOS - GEG
1 stop9h 58mHawaiian Airlines
Tue 6/105:25 pmGEG - BOS
1 stop9h 15mHawaiian Airlines
Deal found 4/28$331
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/143:49 pmBOS - GEG
2 stops20h 44mMultiple Airlines
Sun 5/1810:23 amGEG - BOS
2 stops19h 46mMultiple Airlines
Deal found 4/29$338
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:00 amPWM - BOI
1 stop8h 36mAmerican Airlines
Mon 9/87:30 amBOI - PWM
1 stop8h 00mAmerican Airlines
Deal found 4/29$351

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 April 30, 2025.
Use the filters below to find and compare flights from New Hampshire to Idaho that are best for you.

Fly from

New Hampshire

Fly to

Idaho

Route

Depart

Return

Price

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Tue 7/1

5:40 am-10:28 am

1 stop7h 48m

Spokane

Tue 7/29

1:00 pm-12:15 am

1 stop8h 15m

$297

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Tue 5/13

8:00 am-2:41 pm

1 stop9h 41m

Spokane

Sat 5/17

3:25 pm-5:39 am

2 stops11h 14m

$302

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 7/9

6:00 am-12:42 pm

1 stop8h 42m

Boise Air Term. Gowen Fld

Wed 7/16

1:52 pm-12:31 am

1 stop8h 39m

$313

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Mon 5/5

4:45 pm-10:45 pm

1 stop8h 00m

Boise Air Term. Gowen Fld

Fri 5/9

7:10 pm-6:13 am

1 stop9h 03m

$315

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 5/22

10:04 am-11:21 am

2 stops27h 17m

Boise Air Term. Gowen Fld

Mon 5/26

12:16 pm-9:09 am

2 stops18h 53m

$322

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 6/12

5:40 am-1:55 pm

1 stop10h 15m

Boise Air Term. Gowen Fld

Wed 6/18

1:46 pm-1:21 am

1 stop9h 35m

$325

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Fri 6/6

4:49 pm-2:22 pm

2 stops24h 33m

Spokane

Tue 6/10

5:25 pm-5:40 am

1 stop9h 15m

$327

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 5/29

7:30 am-3:55 pm

1 stop10h 25m

Boise Air Term. Gowen Fld

Mon 6/2

5:34 pm-5:52 pm

2 stops22h 18m

$328

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Fri 6/6

4:49 pm-11:47 pm

1 stop9h 58m

Spokane

Tue 6/10

5:25 pm-5:40 am

1 stop9h 15m

$331

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 5/14

3:49 pm-9:33 am

2 stops20h 44m

Spokane

Sun 5/18

10:23 am-9:09 am

2 stops19h 46m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 results
1
2
3
...
6

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.
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

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 April 30, 2025.
To help decide which airline to fly from New Hampshire to Idaho, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,406 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines to fly from New Hampshire to Idaho one-way?

    To fly one-way, consider booking your trip with Hawaiian Airlines, which is currently one of the cheapest options available, starting at $148. American Airlines flights start at $149 while deals on Alaska Airlines start at $153 one-way.

  • Can I find deals for flights from New Hampshire to Idaho that include hotel bookings?

    Yes. In addition to deals on New Hampshire to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New Hampshire to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from New Hampshire to Idaho.

  • Can I find deals for business class flights from New Hampshire to Idaho?

    Yes. Cheapflights offers flight deals from New Hampshire to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from New Hampshire to Idaho?

    Currently, October is the cheapest month in which you can book a flight from New Hampshire to Idaho (average of $314). Flying from New Hampshire to Idaho in June is currently the most expensive (average of $406). 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.

See more FAQs

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 for New Hampshire to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Los Angeles to John F Kennedy Intl flights
LaGuardia to Fort Lauderdale flights
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
Dallas/Fort Worth to LaGuardia flights
Newark to Las Vegas flights
LaGuardia to Miami flights
Newark to Miami flights
Dallas/Fort Worth to John F Kennedy Intl flights
Dallas/Fort Worth to Seattle flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Seattle flights
Seattle to Los Angeles flights
Los Angeles to Newark flights
LaGuardia to O'Hare Intl flights
O'Hare Intl to LaGuardia flights
Dallas/Fort Worth to O'Hare Intl flights
John F Kennedy Intl to Seattle flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to San Francisco flights
John F Kennedy Intl to Las Vegas flights
Newark to Los Angeles flights
John F Kennedy Intl to O'Hare Intl flights
Newark to Seattle flights
John F Kennedy Intl to Dallas/Fort Worth flights
O'Hare Intl to Dallas/Fort Worth flights
Newark to Orlando flights
Dallas/Fort Worth to Newark flights
John F Kennedy Intl to Orlando flights
LaGuardia to Orlando flights
John F Kennedy Intl to Fort Lauderdale flights
Los Angeles to Dallas/Fort Worth flights
John F Kennedy Intl to Atlanta flights
Seattle to Dallas/Fort Worth flights
LaGuardia to Atlanta flights
Seattle to John F Kennedy Intl flights
Newark to Atlanta flights
San Francisco to Newark flights
Newark to O'Hare Intl flights
Los Angeles to LaGuardia flights
LaGuardia to Los Angeles flights
Los Angeles to Honolulu flights
Dallas/Fort Worth to Las Vegas flights
O'Hare Intl to Las Vegas flights
John F Kennedy Intl to Hobby flights
Dallas/Fort Worth to Los Angeles flights
LaGuardia to Las Vegas flights
O'Hare Intl to John F Kennedy Intl flights

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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$361Average$686FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.