$147 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 3/25. 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$282
Portland
Portland2 stops$346
Boston
Boston1 stop$282
Portland
Portland2 stops$346

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, Mar 26 - Wed, Apr 1
Hawaiian Airlines Logo
4:15 pm - 6:39 am
BOI
-
BOS
12h 24m
1 stop
Hawaiian Airlines Logo
9:00 am - 10:57 pm
BOS
-
BOI
15h 57m
1 stop
$282Hawaiian Airlines
Tue, May 5 - Tue, May 19
Delta Logo
5:40 am - 3:42 pm
BOI
-
BOS
8h 02m
1 stop
Delta Logo
7:45 am - 2:43 pm
BOS
-
BOI
8h 58m
1 stop
$283Delta
Tue, May 5 - Tue, May 19
Delta Logo
10:41 am - 11:07 pm
BOI
-
BOS
10h 26m
2 stops
Delta Logo
7:45 am - 2:43 pm
BOS
-
BOI
8h 58m
1 stop
$288Delta
Wed, Apr 15 - Sat, Apr 25
United Airlines Logo
10:35 am - 9:59 pm
BOI
-
BOS
9h 24m
1 stop
United Airlines Logo
7:09 am - 1:31 pm
BOS
-
BOI
8h 22m
1 stop
$293United Airlines
Wed, Mar 25 - Mon, Mar 30
Alaska Airlines Logo
4:23 pm - 5:53 am
BOI
-
BOS
11h 30m
1 stop
Alaska Airlines Logo
7:15 am - 10:57 pm
BOS
-
BOI
17h 42m
1 stop
$328Alaska Airlines
Wed, Apr 15 - Sat, Apr 25
United Airlines Logo
2:37 pm - 11:59 pm
BOI
-
BOS
7h 22m
1 stop
United Airlines Logo
5:45 am - 1:31 pm
BOS
-
BOI
9h 46m
2 stops
$355United Airlines
Wed, Apr 22 - Thu, Apr 30
Alaska Airlines Logo
8:10 am - 11:59 pm
BOI
-
BOS
13h 49m
1 stop
Alaska Airlines Logo
4:33 pm - 11:59 pm
BOS
-
BOI
9h 26m
1 stop
$358Alaska Airlines
Tue, May 5 - Wed, May 13
American Airlines Logo
1:29 pm - 12:13 am
BOI
-
PWM
8h 44m
1 stop
American Airlines Logo
7:07 am - 12:49 pm
PWM
-
BOI
7h 42m
1 stop
$367American Airlines
Tue, Apr 14 - Thu, Apr 23
American Airlines Logo
1:29 pm - 12:13 am
BOI
-
PWM
8h 44m
1 stop
American Airlines Logo
7:07 am - 12:49 pm
PWM
-
BOI
7h 42m
1 stop
$394American Airlines
Fri, Apr 10 - Mon, Apr 20
Southwest Logo
7:55 pm - 8:00 am
BOI
-
MHT
10h 05m
2 stops
Southwest Logo
12:10 pm - 11:30 pm
MHT
-
BOI
13h 20m
2 stops
$527Southwest
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 $656 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 62% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$147
Best time to beat the crowds but there is an average 46% increase in price.
Most popular time to fly and prices are also 25% 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 11339 reviews
6.4Food
7.2Comfort
8.0Crew
6.9Entertainment
7.5Boarding
Airline reviews

Never ontime and always delays. Long waits for customer service and often app doesn’t work

6.0 GoodGovinda, Feb 2026
DFW - MSN
Read more American Airlines reviews

Never ontime and always delays. Long waits for customer service and often app doesn’t work

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

We arrived 25 minutes early only to be told our gate was occupied and so we sat for close to 30 minutes to pull into a gate. That’s not an early arrival!

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

There was free WiFi (definitely a plus), but the flight was delayed 45 minutes waiting on a catering truck that never arrived. The pilot said there would be food vouchers given out at the end of the gangway to make up for the inconvenience, but there was no one offering those. Delay made me late for work!

Waiting for gate in RDU for more than 20mins is crazy.

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

Information on your arrival and departure airports