$143 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$285
Portland
Portland2 stops$411
Boston
Boston1 stop$285
Portland
Portland2 stops$411

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

Thu, Jul 9 - Tue, Jul 14
Delta Logo
12:20 pm - 12:14 am
BOI
-
BOS
9h 54m
1 stop
Delta Logo
7:53 am - 3:11 pm
BOS
-
BOI
9h 18m
1 stop
$285Delta
Wed, Sep 9 - Sat, Sep 12
American Airlines Logo
12:19 pm - 10:55 pm
BOI
-
BOS
8h 36m
1 stop
American Airlines Logo
6:00 am - 2:31 pm
BOS
-
BOI
10h 31m
2 stops
$290American Airlines
Wed, Sep 16 - Wed, Sep 23
American Airlines Logo
12:19 pm - 10:55 pm
BOI
-
BOS
8h 36m
1 stop
American Airlines Logo
6:00 am - 2:31 pm
BOS
-
BOI
10h 31m
2 stops
$294American Airlines
Tue, Aug 4 - Mon, Aug 17
American Airlines Logo
5:36 pm - 5:45 am
BOI
-
BOS
10h 09m
1 stop
American Airlines Logo
8:27 am - 2:20 pm
BOS
-
BOI
7h 53m
1 stop
$307American Airlines
Wed, Sep 9 - Mon, Sep 14
American Airlines Logo
12:19 pm - 10:55 pm
BOI
-
BOS
8h 36m
1 stop
American Airlines Logo
6:00 am - 2:31 pm
BOS
-
BOI
10h 31m
1 stop
$308American 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
$315Delta
Tue, Jul 7 - Tue, Jul 14
Southwest Logo
7:55 pm - 9:55 am
BOI
-
PWM
12h 00m
2 stops
Southwest Logo
5:30 am - 3:25 pm
PWM
-
BOI
11h 55m
2 stops
$477Southwest
Thu, Jul 9 - Tue, Jul 14
Southwest Logo
10:25 am - 10:00 pm
BOI
-
MHT
9h 35m
2 stops
Southwest Logo
3:55 pm - 12:30 am
MHT
-
BOI
10h 35m
2 stops
$527Southwest
Wed, Oct 28 - Sat, Oct 31
United Airlines Logo
8:20 am - 11:59 pm
BOI
-
MHT
13h 39m
2 stops
United Airlines Logo
9:40 am - 9:15 pm
MHT
-
BOI
13h 35m
2 stops
$574United Airlines
Wed, Oct 28 - Sat, Oct 31
United Airlines Logo
8:20 am - 11:59 pm
BOI
-
MHT
13h 39m
2 stops
United Airlines Logo
9:40 am - 9:16 pm
MHT
-
BOI
13h 36m
2 stops
$595United 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.

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 61% 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$143
Best time to beat the crowds but there is an average 45% 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 11629 reviews
7.9Crew
6.4Food
7.5Boarding
6.9Entertainment
7.2Comfort
Airline reviews

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.

10.0 ExcellentIngrid, May 2026
ONT - DFW
Read more American Airlines reviews

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.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

They lost my baggage and I am still struggling to the information and update

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

There were flight delays making our flight arrive at our destination after midnight didn’t seem to have enough crew or airplanes for the flights laid over in Dallas should’ve had plenty of time to make it to our next flight only made it because that flight was also delayed because our plane wasn’t even at the airport yet overall have not had a good experience on American

Flight left on time. Captain provided relevant announcements. We had to wait 45 minutes to desembark due to the ramp closed because of lightening.

Cancelled flight. Still waiting to get home for grand daughter’s graduation .

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

Information on your arrival and departure airports

Boise (BOI)