$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 6/16. 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$400
Boston
Boston1 stop$285
Portland
Portland2 stops$400

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 9 - Mon, Sep 14
Delta Logo
1:43 pm - 1:06 am
BOI
-
BOS
9h 23m
1 stop
Delta Logo
3:30 pm - 11:59 pm
BOS
-
BOI
10h 29m
1 stop
$285Delta
Mon, Jun 8 - Fri, Jul 3
Southwest Logo
7:40 pm - 8:00 am
BOI
-
BOS
10h 20m
2 stops
Southwest Logo
4:30 pm - 12:20 am
BOS
-
BOI
9h 50m
1 stop
$290Southwest
Thu, Sep 17 - Wed, Sep 23
Delta Logo
2:45 pm - 12:23 am
BOI
-
BOS
7h 38m
1 stop
Delta Logo
7:05 am - 2:22 pm
BOS
-
BOI
9h 17m
1 stop
$295Delta
Sat, Jun 6 - Sat, Jun 13
American Airlines Logo
3:12 pm - 12:28 am
BOI
-
BOS
7h 16m
1 stop
American Airlines Logo
6:00 am - 3:06 pm
BOS
-
BOI
11h 06m
1 stop
$301American 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
6:10 am - 2:14 pm
BOS
-
BOI
10h 04m
1 stop
$314American Airlines
Fri, Jun 5 - Tue, Jun 9
Delta Logo
1:53 pm - 1:28 am
BOI
-
BOS
9h 35m
1 stop
Delta Logo
7:45 am - 5:30 pm
BOS
-
BOI
11h 45m
1 stop
$315Delta
Tue, Aug 4 - Mon, Aug 17
American Airlines Logo
5:36 pm - 5:45 am
BOI
-
BOS
10h 09m
1 stop
American Airlines Logo
6:10 am - 2:14 pm
BOS
-
BOI
10h 04m
1 stop
$319American Airlines
Fri, Sep 18 - Tue, Sep 29
Delta Logo
1:43 pm - 1:06 am
BOI
-
BOS
9h 23m
1 stop
Delta Logo
7:05 am - 2:22 pm
BOS
-
BOI
9h 17m
1 stop
$325Delta
Mon, Jun 29 - Wed, Jul 15
American Airlines Logo
3:12 pm - 12:28 am
BOI
-
BOS
7h 16m
1 stop
American Airlines Logo
7:00 am - 2:20 pm
BOS
-
BOI
9h 20m
1 stop
$326American Airlines
Mon, Sep 14 - Thu, Sep 17
Southwest Logo
12:10 pm - 9:30 pm
BOI
-
PWM
7h 20m
1 stop
Southwest Logo
7:40 am - 2:10 pm
PWM
-
BOI
8h 30m
1 stop
$421Southwest
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 43% 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 11667 reviews
6.9Entertainment
6.4Food
7.5Boarding
7.9Crew
7.2Comfort
Airline reviews

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

6.0 GoodAnonymous, May 2026
DTW - DFW
Read more American Airlines reviews

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

We had several flights and they were all on-time and flawless

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Terrible steward... Plane was quite empty... I asked to move "back" in the plane and the steward said no... Unnecessary power trip of mediocre people.

The small flights with Valet Luggage has a poor service

not sure why you ask about food, I n3ver get food on flights except maybe cookies or pretzels. wifi was slow and in and out most of the flight not good.

Cancelled BOYH legs of our flight home 30 min before initial boarding

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

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

Information on your arrival and departure airports

Boise (BOI)