$143 Find Cheap Flights from New Hampshire to Idaho - 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 New Hampshire to Idaho departing on 9/1. 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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Useful Info

Good to know

Low seasonJanuary
Cheapest flight$143
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Boston to Boise

FAQs for booking flights from New Hampshire to Idaho

  • How does KAYAK find such low prices on flights from New Hampshire to Idaho?

    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 New Hampshire to Idaho.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from New Hampshire to Idaho?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from New Hampshire to Idaho 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 New Hampshire to Idaho?

    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 New Hampshire to Idaho 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 New Hampshire to Idaho?

    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 New Hampshire to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many airports are there in Idaho?

    There are 6 airports in Idaho. The busiest airport is Boise Airport (BOI), with 81% of all flights arriving there.

  • How far in advance should I book a flight from New Hampshire to Idaho?

    To get a below average price on the flight from New Hampshire to Idaho, you should book around 4 weeks before departure, which saves you about 54% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

  • How long is the flight to Idaho?

    An average nonstop flight from New Hampshire to Idaho takes 11h 01m, covering a distance of 2134 miles. The shortest route is Boston (BOS) to Pocatello (PIH) with an average flight time of 6h 48m.

  • What are the most popular destinations in Idaho?

    Based on KAYAK flight searches, the most popular destination is Jackson (53% of total searches to Idaho). The next most popular destinations are Boise (19%) and Spokane (16%). Searches for flights to Idaho Falls (11%) and to Lewiston (1%) are also popular.

Reviews of the top airline flying from New Hampshire to Idaho

 
Need help choosing which airline to fly with from New Hampshire to Idaho? 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 11746 reviews
7.2Comfort
7.5Boarding
6.4Food
7.9Crew
6.8Entertainment
Airline reviews

Maybe focus more on delivering a good product vs selling me a damn credit card

2.0 MediocreKevin, Jun 2026
LGA - DFW
Read more American Airlines reviews

Maybe focus more on delivering a good product vs selling me a damn credit card

American Airlines is a great dependable airline, on time arrival and departure with polite crew and staff.

I think since I am an AA Advantage member, my checked bags should have been free, but I paid for all 4 of us.

This flight moved Gates several times in a short time period, from B to C, which required a substantial walk or rail ride. Then the flight was delayed more than 2 hours and the food was subpar compared to other flights.

Flight was delayed multiple times without giving any particular reason and the only thing that was communicated was that 'Aircraft is getting ready'. I was stuck at SFO airport for 15 hours and finally took Southwest Airlines flight back home to Dallas.

Hydraulic leak caused the flight to be cancelled. Auto system scheduled us on a 3 am flight. Wevhsedvrebook on the app and hit schedules later in the afternoon. Our luggage per gate and ticket agent would be rescanned and put in our new flight. Did not happen. Our luggage stayed in hsv. Baggage claim in wash dc unable to help. We filed a claim. Several emails about our luggage were in conflict with one another. Called as baggage and was on hold 30 minutes. Oscar said one of 2 was out fir delivery then cancelled. About 45 minutes later both pieces were delivered. Their system is suspect

I was not clear if food was offered or not.

Flight cancelled. Twice. And no communication. No gate agent. Went past boarding time and had to go and see email from AA. Airport communication was bad

I love the e fact that the staff communicated swiftly when my flight was delayed and gate number changed

It was awful. The communication between corporate and the crew on the ground left more to be desired. The crew even said that Corporate was waiting on answers because they themselves didn't know. Every hour, there was a new excuse. I also understood that passengers were angry, but the crew should have done a better job at crowd control. There was a racial exchange between passengers that could've been avoided has the crew acted sooner.

Everything you need to know for your flight to Idaho

Cabin class types available on flights to New Hampshire

Cabin classes available on flights to New Hampshire. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Idaho
Business Class flights to Idaho
Premium Economy Class flights to Idaho
Economy Class flights to Idaho