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Idaho Falls

$139+ Cheap flights from New Hampshire to Idaho Falls (IDA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — IDA
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from New Hampshire to Idaho Falls

Cheapest flights from New Hampshire to Idaho Falls
Explore the most affordable flight options available from New Hampshire to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:09 am
BOS
-
IDA
1 stop8h 16m
United Airlines
Sat 5/92:31 pm
IDA
-
BOS
1 stop7h 28m
United Airlines
Deal found 2/2$359
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:00 am
BOS
-
IDA
1 stop11h 43m
Alaska Airlines
Wed 3/115:20 pm
IDA
-
BOS
1 stop11h 34m
Alaska Airlines
Deal found 2/2$373
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:20 am
BOS
-
IDA
1 stop15h 19m
Alaska Airlines
Sun 9/64:00 pm
IDA
-
BOS
1 stop12h 02m
Alaska Airlines
Deal found 2/2$379
This Expedia deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/209:02 am
BOS
-
IDA
1 stop9h 41m
Alaska Airlines
Wed 2/255:20 pm
IDA
-
BOS
1 stop11h 34m
Alaska Airlines
Deal found 2/1$448
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:50 am
MHT
-
IDA
2 stops13h 34m
American Airlines
Tue 4/77:48 am
IDA
-
MHT
2 stops14h 01m
American Airlines
Deal found 2/1$466
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/204:37 pm
BOS
-
IDA
1 stop8h 47m
American Airlines
Wed 2/252:18 pm
IDA
-
BOS
2 stops14h 55m
American Airlines
Deal found 2/1$472
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:37 am
BOS
-
IDA
2 stops12h 40m
Delta
Sat 5/93:16 pm
IDA
-
BOS
1 stop6h 42m
Delta
Deal found 2/2$486
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:09 am
BOS
-
IDA
1 stop8h 16m
United Airlines
Sat 5/92:31 pm
IDA
-
BOS
1 stop7h 28m
United Airlines
Deal found 2/2$506
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:48 am
PWM
-
IDA
2 stops14h 51m
American Airlines
Thu 4/237:48 am
IDA
-
PWM
2 stops13h 39m
American Airlines
Deal found 2/1$1,145
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/165:02 pm
MHT
-
IDA
2 stops22h 46m
American Airlines
Fri 2/202:18 pm
IDA
-
MHT
2 stops19h 32m
American Airlines
Deal found 2/1$1,153
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/146:49 pm
PWM
-
IDA
2 stops20h 59m
American Airlines
Sat 2/212:18 pm
IDA
-
PWM
2 stops19h 16m
American Airlines
Deal found 2/1$1,232

Find flight deals from New Hampshire to Idaho Falls

Keep the following information in mind while searching for New Hampshire to Idaho Falls flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$359
(United Airlines)

One-way from

$139
(Travelocity)

Popular in

July

Cheapest in

October

Average price

$748
Provider with most accurate pricing for Boston Logan Intl-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Idaho Falls Fanning Field flights.
Search Deals
From New Hampshire to Idaho Falls Fanning Field
Search Deals
One-way flight from New Hampshire to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($176 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from New Hampshire to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from New Hampshire to Idaho Falls that are best for you.

Fly from

New Hampshire

Fly to

Idaho Falls

Route

Depart

Return

Price

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 5/5

7:09 am-1:25 pm

1 stop8h 16m

Idaho Falls Fanning Field

Sat 5/9

10:40 am-12:59 am

2 stops12h 19m

$364

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 3/7

7:00 am-4:43 pm

1 stop11h 43m

Idaho Falls Fanning Field

Wed 3/11

5:20 pm-3:36 pm

2 stops20h 16m

$443

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 2/20

9:02 am-4:43 pm

1 stop9h 41m

Idaho Falls Fanning Field

Wed 2/25

5:20 pm-6:54 am

1 stop11h 34m

$448

ManchesterIdaho Falls

MHT - IDA

MHTIDA

Manchester

Wed 3/18

11:50 am-11:24 pm

2 stops13h 34m

Idaho Falls Fanning Field

Tue 4/7

7:30 am-11:49 pm

2 stops14h 19m

$466

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 2/20

4:37 pm-11:24 pm

1 stop8h 47m

Idaho Falls Fanning Field

Wed 2/25

2:18 pm-7:13 am

2 stops14h 55m

$472

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 5/1

7:37 am-6:17 pm

2 stops12h 40m

Idaho Falls Fanning Field

Sat 5/9

3:16 pm-11:58 pm

1 stop6h 42m

$486

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 5/1

7:09 am-1:25 pm

1 stop8h 16m

Idaho Falls Fanning Field

Sat 5/9

2:31 pm-11:59 pm

1 stop7h 28m

$506

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 4/23

8:23 am-6:17 pm

2 stops11h 54m

Idaho Falls Fanning Field

Sun 5/3

6:58 pm-6:00 am

1 stop9h 02m

$529

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sun 3/8

7:00 am-4:43 pm

1 stop11h 43m

Idaho Falls Fanning Field

Sat 3/14

5:20 pm-6:54 am

1 stop11h 34m

$549

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 5/14

8:05 am-10:45 pm

2 stops16h 40m

Idaho Falls Fanning Field

Thu 5/21

1:43 pm-11:59 pm

1 stop8h 16m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 21 results
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Best time to book a flight from New Hampshire to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from New Hampshire with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New Hampshire to Idaho Falls
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from New Hampshire to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Idaho Falls from New Hampshire?

    If you book a flight to Idaho Falls from New Hampshire, you will be flying to Fanning Field, which is the city’s only airport. Idaho Falls Fanning Field (IDA) is located 3.8 mi from the center of Idaho Falls.

  • How long is the flight from New Hampshire to Idaho Falls?

    There are many flights that can get you from New Hampshire to Idaho Falls in 8h 16m. Fly via United Airlines, Alaska Airlines, or American Airlines to get the fastest option. There are 2056 mi between New Hampshire and Idaho Falls. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from New Hampshire to Idaho Falls?

    Most travelers choose Boston Logan Intl - Idaho Falls Fanning Field, Manchester - Idaho Falls Fanning Field or Portland - Idaho Falls Fanning Field when deciding on the best route from New Hampshire to Idaho Falls.

  • Can I find deals for flights from New Hampshire to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on New Hampshire to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New Hampshire to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from New Hampshire to Idaho Falls.

  • Can I find deals for business class flights from New Hampshire to Idaho Falls?

    Yes. Cheapflights offers flight deals from New Hampshire to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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