$99 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 9/2. 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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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$197
Portland
Portland2 stops$339
Boston
Boston1 stop$197
Portland
Portland2 stops$339

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, Sep 2 - Wed, Sep 9
Delta Logo
2:53 pm - 11:58 pm
BOI
-
BOS
7h 05m
1 stop
Delta Logo
6:30 am - 3:01 pm
BOS
-
BOI
10h 31m
1 stop
$197Delta
Sat, Aug 15 - Wed, Aug 19
American Airlines Logo
2:58 pm - 11:58 pm
BOI
-
BOS
7h 00m
1 stop
American Airlines Logo
6:59 am - 2:20 pm
BOS
-
BOI
9h 21m
1 stop
$235American Airlines
Thu, Aug 6 - Tue, Aug 11
American Airlines Logo
12:12 pm - 11:04 pm
BOI
-
BOS
8h 52m
1 stop
American Airlines Logo
6:14 am - 2:20 pm
BOS
-
BOI
10h 06m
1 stop
$253American Airlines
Thu, Aug 6 - Thu, Aug 13
American Airlines Logo
12:12 pm - 11:04 pm
BOI
-
BOS
8h 52m
1 stop
American Airlines Logo
6:14 am - 2:20 pm
BOS
-
BOI
10h 06m
1 stop
$267American Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
12:12 pm - 11:36 pm
BOI
-
BOS
9h 24m
1 stop
American Airlines Logo
7:00 am - 2:31 pm
BOS
-
BOI
9h 31m
1 stop
$271American Airlines
Thu, Aug 27 - Tue, Sep 1
American Airlines Logo
12:12 pm - 11:04 pm
BOI
-
BOS
8h 52m
1 stop
American Airlines Logo
6:59 am - 2:20 pm
BOS
-
BOI
9h 21m
1 stop
$274American Airlines
Fri, Oct 16 - Tue, Oct 20
Delta Logo
2:35 pm - 12:20 am
BOI
-
BOS
7h 45m
1 stop
Delta Logo
5:40 am - 12:42 pm
BOS
-
BOI
9h 02m
1 stop
$285Delta
Wed, Sep 2 - Wed, Sep 9
Southwest Logo
12:35 pm - 12:05 am
BOI
-
BOS
9h 30m
1 stop
Southwest Logo
3:20 pm - 11:10 pm
BOS
-
BOI
9h 50m
2 stops
$310Southwest
Tue, Jul 14 - Tue, Jul 21
United Airlines Logo
7:05 pm - 9:11 am
BOI
-
PWM
12h 06m
2 stops
United Airlines Logo
6:00 am - 11:32 am
PWM
-
BOI
7h 32m
1 stop
$400United Airlines
Tue, Jun 23 - Tue, Jul 7
Southwest Logo
7:55 pm - 8:30 am
BOI
-
MHT
10h 35m
2 stops
Southwest Logo
3:55 pm - 12:30 am
MHT
-
BOI
10h 35m
2 stops
$522Southwest
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.

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 5 weeks before departure, which saves you about 57% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$99
Best time to beat the crowds but there is an average 44% increase in price.
Most popular time to fly and prices are also 27% 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 11639 reviews
7.5Boarding
7.2Comfort
7.9Crew
6.4Food
6.9Entertainment
Airline reviews

The flight from LA to Chicago was smooth and service was very good overall.

8.0 ExcellentAnonymous, Jun 2026
LAX - ORD
Read more American Airlines reviews

The flight from LA to Chicago was smooth and service was very good overall.

The flight from Dallas to Tokyo was not on Japan Airlines. It was on American Airlines. Very disappointed that we did not fly on Japan Airlines. Will not be using you liars again. I’ll just book direct from the airline next time. Wish you could make this right and has us fly on Japan Air when heading back home to the US.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

They made nearly everyone check their bag because the overhead bins are way too small. Extremely inconvenient

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

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

Information on your arrival and departure airports

Boise (BOI)