$104 Find Cheap Flights from Boise to New Hampshire - Compare and Save

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 8/18. 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

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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$207
Portland
Portland2 stops$412
Boston
Boston1 stop$207
Portland
Portland2 stops$412

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, Sep 1 - Sat, Sep 5
American Airlines Logo
12:12 pm - 10:06 pm
BOI
-
BOS
7h 54m
1 stop
American Airlines Logo
6:14 am - 2:02 pm
BOS
-
BOI
9h 48m
1 stop
$207American Airlines
Wed, Sep 2 - Mon, Sep 14
Southwest Logo
12:35 pm - 12:05 am
BOI
-
BOS
9h 30m
1 stop
Southwest Logo
5:40 am - 10:50 am
BOS
-
BOI
7h 10m
1 stop
$208Southwest
Tue, Sep 15 - Sat, Sep 19
Southwest Logo
2:25 pm - 12:05 am
BOI
-
BOS
7h 40m
1 stop
Southwest Logo
5:40 am - 10:55 am
BOS
-
BOI
7h 15m
1 stop
$212Southwest
Thu, Oct 22 - Mon, Oct 26
Delta Logo
7:13 pm - 7:35 am
BOI
-
BOS
10h 22m
1 stop
Delta Logo
7:50 am - 5:14 pm
BOS
-
BOI
11h 24m
1 stop
$215Delta
Tue, Sep 1 - Sat, Sep 5
Southwest Logo
2:25 pm - 12:05 am
BOI
-
BOS
7h 40m
1 stop
Southwest Logo
1:30 pm - 9:30 pm
BOS
-
BOI
10h 00m
2 stops
$233Southwest
Mon, Nov 2 - Mon, Nov 9
Southwest Logo
5:35 am - 5:10 pm
BOI
-
BOS
9h 35m
2 stops
Southwest Logo
5:00 am - 4:05 pm
BOS
-
BOI
13h 05m
1 stop
$244Southwest
Fri, Aug 21 - Fri, Aug 28
American Airlines Logo
12:12 pm - 11:37 pm
BOI
-
BOS
9h 25m
1 stop
American Airlines Logo
8:27 am - 2:29 pm
BOS
-
BOI
8h 02m
1 stop
$262American Airlines
Thu, Aug 6 - Tue, Aug 11
Delta Logo
11:10 pm - 9:39 am
BOI
-
BOS
8h 29m
1 stop
Delta Logo
5:51 am - 1:42 pm
BOS
-
BOI
9h 51m
1 stop
$285Delta
Tue, Dec 8 - Wed, Dec 9
United Airlines Logo
9:40 am - 10:57 pm
BOI
-
PWM
11h 17m
2 stops
United Airlines Logo
9:10 am - 9:16 pm
PWM
-
BOI
14h 06m
2 stops
$501United Airlines
Wed, Aug 19 - Sun, Aug 23
United Airlines Logo
5:00 am - 3:51 pm
BOI
-
PWM
8h 51m
1 stop
United Airlines Logo
6:03 am - 11:28 am
PWM
-
BOI
7h 25m
1 stop
$502United 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 6 weeks before departure, which saves you about 57% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$104
Best time to beat the crowds but there is an average 43% increase in price.
Most popular time to fly and prices are also 28% 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 11783 reviews
6.4Food
6.8Entertainment
7.5Boarding
7.2Comfort
7.9Crew
Airline reviews

The flight from Milwaukee to Dallas was great the staff absolutely amazing. After that EVERYTHING WENT DOWN HILL!!! ABSOLUTELY HORRIBLE!!! WILL NOT FLY THIS AIRLINE AGAIN

6.0 GoodSanta, Jul 2026
ORD - MKE
Read more American Airlines reviews

The flight from Milwaukee to Dallas was great the staff absolutely amazing. After that EVERYTHING WENT DOWN HILL!!! ABSOLUTELY HORRIBLE!!! WILL NOT FLY THIS AIRLINE AGAIN

Nothing, I wont be flying American Airlines again and will not be recommending anyone to fly American Airlines. It was the worst experience flying I've ever had.

Boarding was awful - no order, people cutting in line, completely chaotic Planes are very old and uncomfortable. Noticeable difference between Delta and United on same route.

My luggage never made it, I booked business class only to find out I’m sitting in the back. Very disappointed with the reservation

American Airlines changed are gate no fewer than four times. Walking back and forth from one concourse to another was exhausting, especially after all the flight delays.

I was very unhappy with the lack of communication from the cockpit. It took close to a half an hour before we took off after the doors were closed, and we got no announcements as to progress. It would be nice to get some acknowledgement of the situation and updates as to when we are taking off.

We had multiple delays and a medical incident during the flight. We barely got a glass of water during the over 4 hours we were on the plane. Somehow first class got all of their service. It would be nice if all of your paying customers got the service they paid for.

The plane was spartan, the seats not that comfortable. It was like flying a super low budget airline. They charged for coffee!!! I have never, ever experienced that before.

Short hop but nice crew, efficient processes and all very timely

Flight was delayed due to a steering issue with plane. The delay caused me to miss the connecting flight. The delay caused me to spend an extra 21 hours in airports and flights to get to my destination. The plane issue obviously should have been found and fixed before we even boarded. Ridiculous.

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

Information on your arrival and departure airports

Boise (BOI)