$117 Find Cheap Flights from Boise to New Hampshire

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to New Hampshire departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to New Hampshire

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to New Hampshire, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to New Hampshire, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Boise to New Hampshire

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Boston1 stop$257
Portland
Portland2 stops$338
Boston
Boston1 stop$257
Portland
Portland2 stops$338

Book Cheap Boise to New Hampshire Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to New Hampshire that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to New Hampshire

Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
12:59 pm - 12:49 am
BOI
-
BOS
9h 50m
1 stop
United Airlines Logo
6:00 am - 12:13 pm
BOS
-
BOI
8h 13m
1 stop
$257United Airlines
Wed, Mar 4 - Wed, Mar 18
American Airlines Logo
7:00 am - 5:14 pm
BOI
-
BOS
8h 14m
1 stop
American Airlines Logo
5:30 am - 12:48 pm
BOS
-
BOI
9h 18m
1 stop
$271American Airlines
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
5:00 am - 1:42 pm
BOI
-
BOS
6h 42m
1 stop
United Airlines Logo
6:00 am - 1:32 pm
BOS
-
BOI
9h 32m
2 stops
$285United Airlines
Tue, Mar 10 - Tue, Mar 17
Delta Logo
7:30 pm - 6:49 am
BOI
-
BOS
9h 19m
1 stop
Delta Logo
11:15 am - 6:43 pm
BOS
-
BOI
9h 28m
1 stop
$291Delta
Tue, Mar 31 - Tue, Apr 7
American Airlines Logo
7:00 am - 7:04 pm
BOI
-
BOS
10h 04m
2 stops
American Airlines Logo
6:45 am - 12:38 pm
BOS
-
BOI
7h 53m
1 stop
$306American Airlines
Tue, Mar 10 - Tue, Mar 17
Alaska Airlines Logo
1:58 pm - 6:54 am
BOI
-
BOS
14h 56m
2 stops
Alaska Airlines Logo
7:00 am - 3:08 pm
BOS
-
BOI
10h 08m
1 stop
$315Alaska Airlines
Thu, Feb 19 - Tue, Feb 24
Delta Logo
5:50 am - 3:59 pm
BOI
-
BOS
8h 09m
1 stop
Delta Logo
5:50 am - 1:58 pm
BOS
-
BOI
10h 08m
1 stop
$331Delta
Tue, May 5 - Wed, May 13
Southwest Logo
6:00 am - 10:20 pm
BOI
-
PWM
14h 20m
2 stops
Southwest Logo
3:55 pm - 12:25 am
PWM
-
BOI
10h 30m
2 stops
$378Southwest
Sun, Feb 8 - Fri, Feb 13
Southwest Logo
7:45 am - 8:35 pm
BOI
-
MHT
10h 50m
2 stops
Southwest Logo
5:00 am - 3:00 pm
MHT
-
BOI
12h 00m
2 stops
$647Southwest
Thu, Feb 5 - Mon, Feb 9
Alaska Airlines Logo
6:23 am - 10:58 pm
BOI
-
MHT
14h 35m
2 stops
Alaska Airlines Logo
12:08 pm - 11:59 pm
MHT
-
BOI
13h 51m
2 stops
$799Alaska Airlines
Booking Insights

KAYAK's insights & trends for Boise to New Hampshire flights

Get data-powered insights and trends into flights from Boise to New Hampshire to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boise to New Hampshire?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to New Hampshire, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boise to New Hampshire is December, when tickets cost $263 (return) on average. On the other hand, the most expensive months are January and March, when the average cost of round-trip tickets is $816 and $505 respectively.

How far in advance should I book a flight from Boise to New Hampshire?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boise to New Hampshire, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boise to New Hampshire, you should book around 4 weeks before departure, which saves you about 62% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$117
Best time to beat the crowds with an average 52% drop in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Boise to Boston

FAQs - booking New Hampshire flights

  • How does KAYAK find such low prices on flights from Boise to New Hampshire?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to New Hampshire.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to New Hampshire?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boise to New Hampshire is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to New Hampshire?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Boise to New Hampshire with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to New Hampshire?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Boise to New Hampshire up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boise to New Hampshire

 
See real verified KAYAK customer reviews for airlines flying from Boise to New Hampshire. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to New Hampshire? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11174 reviews
7.2Comfort
6.9Entertainment
6.4Food
8.0Crew
7.5Boarding
Airline reviews

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

10.0 ExcellentFatima, Jan 2026
PHL - STL
Read more American Airlines reviews

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Could we please end the loud announcements about credit card offers on your flights? We are trying to sleep, work, watch videos, etc. and if we need a credit card, we will ask for one. Flying is already not what it used to be.

I would like the crew to talk LESS over the PA and specifically about credit card offers. I am trying to work, sleep, watch a movie and the PA was booming about a credit card offer. Could we go back to the days when the customer was more important than selling a credit card?

No enough space plus only allowing one laggage instead of two like other airlines.

It was good. But the gate team made me check my carry on when there was plenty of space for my luggage on the plane. Otherwise our trip was fine.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

It was a good trip. Flight Attendants were friendly and responsive.

Everything you need to know for your flight from Boise to New Hampshire

Information on your arrival and departure airports