$153 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 4/21. 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$313
Portland
Portland2 stops$401
Boston
Boston1 stop$313
Portland
Portland2 stops$401

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

Wed, Apr 15 - Sat, Apr 25
United Airlines Logo
6:58 pm - 6:21 am
BOI
-
BOS
9h 23m
1 stop
United Airlines Logo
4:50 pm - 10:35 pm
BOS
-
BOI
7h 45m
1 stop
$313United Airlines
Tue, May 5 - Tue, Jun 2
American Airlines Logo
1:29 pm - 12:25 am
BOI
-
BOS
8h 56m
1 stop
American Airlines Logo
7:00 am - 2:20 pm
BOS
-
BOI
9h 20m
1 stop
$315American Airlines
Wed, May 27 - Tue, Jun 2
Delta Logo
9:16 pm - 7:35 am
BOI
-
BOS
8h 19m
1 stop
Delta Logo
3:55 pm - 11:53 pm
BOS
-
BOI
9h 58m
1 stop
$317Delta
Wed, Apr 15 - Wed, Apr 22
Southwest Logo
3:15 pm - 12:05 am
BOI
-
BOS
6h 50m
1 stop
Southwest Logo
2:25 pm - 11:30 pm
BOS
-
BOI
11h 05m
2 stops
$318Southwest
Tue, Apr 21 - Tue, Apr 28
Southwest Logo
6:00 am - 6:35 pm
BOI
-
BOS
10h 35m
2 stops
Southwest Logo
6:20 am - 3:25 pm
BOS
-
BOI
11h 05m
2 stops
$323Southwest
Tue, Apr 21 - Tue, Apr 28
Southwest Logo
6:00 am - 6:35 pm
BOI
-
BOS
10h 35m
2 stops
Southwest Logo
5:35 am - 3:25 pm
BOS
-
BOI
11h 50m
1 stop
$324Southwest
Thu, Jun 4 - Tue, Jun 9
Delta Logo
12:15 pm - 12:40 am
BOI
-
BOS
10h 25m
1 stop
Delta Logo
5:40 am - 10:59 am
BOS
-
BOI
7h 19m
1 stop
$325Delta
Tue, May 5 - Tue, Jun 2
American Airlines Logo
6:45 am - 7:30 pm
BOI
-
BOS
10h 45m
2 stops
American Airlines Logo
8:37 am - 2:20 pm
BOS
-
BOI
7h 43m
1 stop
$326American Airlines
Tue, May 5 - Tue, Jun 2
American Airlines Logo
6:45 am - 7:30 pm
BOI
-
BOS
10h 45m
2 stops
American Airlines Logo
6:00 am - 2:20 pm
BOS
-
BOI
10h 20m
2 stops
$340American Airlines
Wed, Apr 15 - Sat, Apr 25
American Airlines Logo
1:29 pm - 12:25 am
BOI
-
BOS
8h 56m
1 stop
American Airlines Logo
3:05 pm - 11:41 pm
BOS
-
BOI
10h 36m
2 stops
$359American 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 March and January, when the average cost of round-trip tickets is $509 and $507 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 63% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$153
Best time to beat the crowds but there is an average 49% increase in price.
Most popular time to fly and prices are also 23% 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.
7.1
American AirlinesOverall score based on 11489 reviews
7.2Comfort
6.9Entertainment
7.5Boarding
6.4Food
7.9Crew
Airline reviews

The flight attendant was friendly and efficient. The temperature was kept nice and cool. The plane was nice, but filthy. There were visible spills on my tray table. The gate agent was somewhat rude with her announcements and in speaking with other customers.

8.0 ExcellentAnonymous, Mar 2026
CVG - PHX
Read more American Airlines reviews

The flight attendant was friendly and efficient. The temperature was kept nice and cool. The plane was nice, but filthy. There were visible spills on my tray table. The gate agent was somewhat rude with her announcements and in speaking with other customers.

I appreciate that I finally got the seat I paid extra for this time. Thank you

I would have liked vegetarian and gluten free options for evening dinner time flight. I would have like a pillow on the international overnight flight . The veg wrap and oaten desert on the international flight was good

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Absolutely terrible. Would never fly American again. 2 deplaned incidents and delayed by close to 24 hours. $12 meal voucher for first class passengers was an insult to the injury. Pathetic.

Terrible planning. And even worse gate agents. Absolutely rude behavior.

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

Flight was scheduled at 11:26am but they keep Delaying until midnight. They waited at airport restless.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

Great experience. Good dinner and service. FA's were very nice and attentive.

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

Information on your arrival and departure airports

Boise (BOI)