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Find cheap flights from New Hampshire to Idaho Falls from $549

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Idaho Falls departing on 6/6. 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
0 bags
Wed 6/5
Wed 6/12

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In the last 7 days travelers have searched 42,830,901 times on KAYAK, and here is why:

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Good to know

Low season

March

High season

July

Cheapest flight

$549
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Boston to Idaho Falls

FAQs for booking flights from New Hampshire to Idaho Falls

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

    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 Falls.

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

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

    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 to Idaho Falls with an airline and back to New Hampshire 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 Falls?

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

See more FAQs

Prefer to fly non-stop from New Hampshire to Idaho Falls?

Find which airlines fly direct from New Hampshire to Fanning Field, which days they fly and book direct flights.

Nonstop departures

New Hampshire to Idaho Falls Fanning Field

Monday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Tuesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Wednesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Thursday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Friday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Saturday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Sunday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

See more direct flights

Nonstop returns

Idaho Falls Fanning Field to New Hampshire

Monday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Tuesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Wednesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Thursday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Friday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Saturday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Sunday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

See more direct flights
See more direct flights

Book cheap flights from New Hampshire to Idaho Falls

Recent round-trip flight deals

6/6Thu
1 stopUnited Airlines
22h 35mBOS-IDA
6/12Wed
2 stopsUnited Airlines
16h 10mIDA-BOS
$549
6/4Tue
1 stopDelta
8h 08mBOS-IDA
6/11Tue
2 stopsDelta
10h 52mIDA-BOS
$580
6/4Tue
1 stopUnited Airlines
30h 12mBOS-IDA
6/8Sat
1 stopUnited Airlines
10h 04mIDA-BOS
$599
6/4Tue
2 stopsUnited Airlines
17h 08mBOS-IDA
6/8Sat
1 stopUnited Airlines
10h 04mIDA-BOS
$604
5/29Wed
2 stopsDelta
13h 47mBOS-IDA
6/2Sun
1 stopDelta
9h 35mIDA-BOS
$605
6/4Tue
1 stopDelta
8h 08mBOS-IDA
6/11Tue
1 stopDelta
9h 40mIDA-BOS
$608
6/3Mon
1 stopAmerican Airlines
9h 19mBOS-IDA
6/6Thu
1 stopAmerican Airlines
7h 44mIDA-BOS
$618
6/3Mon
2 stopsAmerican Airlines
12h 17mBOS-IDA
6/6Thu
1 stopAmerican Airlines
9h 02mIDA-BOS
$623
5/24Fri
2 stopsAlaska Airlines
18h 57mBOS-IDA
5/27Mon
1 stopAlaska Airlines
21h 50mIDA-BOS
$677
5/24Fri
2 stopsAlaska Airlines
18h 57mBOS-IDA
5/27Mon
2 stopsAlaska Airlines
23h 30mIDA-BOS
$682

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Last minute flights from New Hampshire to Idaho Falls

Last minute flight, train and bus deals

5/7Tue
multi-stopDelta
7h 58mBOS-IDA
5/8Wed
multi-stopDelta
9h 35mIDA-BOS
$854
5/7Tue
multi-stopAmerican Airlines
10h 59mBOS-IDA
5/8Wed
multi-stopAmerican Airlines
9h 46mIDA-BOS
$857
5/7Tue
multi-stopAmerican Airlines
15h 34mBOS-IDA
5/8Wed
multi-stopAmerican Airlines
9h 46mIDA-BOS
$861

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Flights to Idaho Falls

Destination:

Idaho Falls (IDA)United States

Return flight deals:

Idaho Falls - New Hampshire

Cabin classes: