$100 Find Cheap Flights from New Hampshire to Idaho

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

Good to know

Low seasonApril
High seasonJuly
Cheapest flight$100
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Boston to Spokane

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.

  • What is the cheapest day to fly to Idaho?

    Based on KAYAK data, the cheapest day to fly to Idaho is Saturday where round-trip tickets can be as cheap as $560. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are $901 on average.

  • What is the cheapest time of day to fly to Idaho?

    The cheapest time of day to fly to Idaho is generally in the afternoon, when round-trip flights cost $614 on average. The most expensive time of day to fly to Idaho is generally in the morning, which is peak travel time and where the average cost of a ticket is $814.

  • 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

  • How long is the flight to Idaho?

    An average nonstop flight from New Hampshire to Idaho takes 11h 26m, covering a distance of 2134 miles. The shortest route is Boston (BOS) to Boise (BOI) with an average flight time of 7h 06m.

  • What are the most popular destinations in Idaho?

    Based on KAYAK flight searches, the most popular destination is Jackson (41% of total searches to Idaho). The next most popular destinations are Boise (35%) and Spokane (17%). Searches for flights to Idaho Falls (6%) and to Lewiston (0%) are also popular.

Book cheap flights from New Hampshire to Idaho

Recent round-trip flight deals

7/22Tue
1 stopDelta
8h 14mBOS-GEG
7/29Tue
1 stopDelta
8h 14mGEG-BOS
$199
9/5Fri
1 stopAlaska Airlines
8h 19mBOS-GEG
9/7Sun
1 stopAlaska Airlines
9h 16mGEG-BOS
$210
7/11Fri
1 stopUnited Airlines
8h 38mBOS-GEG
7/14Mon
1 stopUnited Airlines
8h 36mGEG-BOS
$284
8/30Sat
1 stopAmerican Airlines
8h 50mBOS-BOI
9/6Sat
2 stopsAmerican Airlines
10h 43mBOI-BOS
$290
8/28Thu
1 stopAmerican Airlines
8h 50mBOS-BOI
8/31Sun
1 stopAmerican Airlines
7h 35mBOI-BOS
$301
9/11Thu
1 stopHawaiian Airlines
8h 22mBOS-BOI
9/15Mon
1 stopHawaiian Airlines
10h 43mBOI-BOS
$311
11/17Mon
1 stopSouthwest
10h 20mBOS-BOI
12/8Mon
1 stopSouthwest
9h 00mBOI-BOS
$317
11/17Mon
2 stopsSouthwest
9h 45mBOS-BOI
12/8Mon
1 stopSouthwest
9h 00mBOI-BOS
$322
9/5Fri
1 stopHawaiian Airlines
9h 58mBOS-BOI
9/9Tue
1 stopHawaiian Airlines
8h 02mBOI-BOS
$330
7/15Tue
1 stopUnited Airlines
10h 53mBOS-GEG
7/29Tue
2 stopsUnited Airlines
13h 06mGEG-BOS
$344

Search by stops

Search by airline

Search by price

Recent one-way flight deals

8/20Wed
1 stopAmerican Airlines
9h 52mBOS-GEG
$100
8/20Wed
2 stopsUnited Airlines
13h 03mBOS-GEG
$125
7/16Wed
1 stopDelta
9h 01mBOS-GEG
$140
9/23Tue
1 stopHawaiian Airlines
10h 56mBOS-BOI
$142
7/4Fri
1 stopDelta
7h 46mBOS-BOI
$143
8/12Tue
2 stopsSouthwest
10h 15mBOS-BOI
$164
9/23Tue
2 stopsAlaska Airlines
11h 30mBOS-BOI
$177
10/7Tue
2 stopsAlaska Airlines
16h 37mBOS-IDA
$197
7/22Tue
2 stopsSouthwest
11h 40mBOS-BOI
$210
8/16Sat
1 stopHawaiian Airlines
11h 37mBOS-GEG
$305

Search by stops

Search by airline

Search by price

Last minute flights from New Hampshire to Idaho

Last minute flight, train and bus deals

6/19Thu
multi-stopAmerican Airlines
10h 21mMHT-JAC
6/28Sat
multi-stopAmerican Airlines
10h 06mJAC-MHT
$524
6/21Sat
multi-stopAlaska Airlines
8h 49mBOS-BOI
7/8Tue
multi-stopAlaska Airlines
7h 35mBOI-BOS
$552
6/18Wed
multi-stopAmerican Airlines
9h 10mBOS-BOI
7/9Wed
multi-stopAmerican Airlines
8h 06mBOI-BOS
$553
6/21Sat
multi-stopAlaska Airlines
8h 49mBOS-BOI
7/14Mon
multi-stopAlaska Airlines
7h 35mBOI-BOS
$567
6/18Wed
multi-stopDelta
10h 15mBOS-BOI
7/9Wed
multi-stopDelta
6h 40mBOI-BOS
$603
6/18Wed
multi-stopDelta
10h 15mBOS-BOI
7/11Fri
multi-stopDelta
6h 40mBOI-BOS
$618
6/18Wed
multi-stopUnited Airlines
11h 01mBOS-BOI
7/9Wed
multi-stopUnited Airlines
11h 09mBOI-BOS
$658
6/18Wed
multi-stopUnited Airlines
7h 43mPWM-BOI
7/12Sat
multi-stopUnited Airlines
7h 22mBOI-PWM
$661
6/20Fri
multi-stopSouthwest
13h 45mPWM-BOI
7/11Fri
multi-stopSouthwest
11h 30mBOI-PWM
$738
6/19Thu
multi-stopSouthwest
8h 50mBOS-GEG
6/21Sat
multi-stopSouthwest
9h 40mGEG-BOS
$823

Search by stops

Search by airline

Search by price

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.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.