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$421+ Cheap flights from Idaho Falls (IDA) to New Hampshire

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — MHT
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find flight deals from Idaho Falls to New Hampshire

Cheapest flights from Idaho Falls to New Hampshire
Explore the most affordable flight options available from Idaho Falls to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:17 pmIDA - BOS
1 stop8h 24mDelta
Mon 12/156:10 amBOS - IDA
1 stop8h 27mDelta
Deal found 11/1$421
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/188:30 amIDA - PWM
2 stops11h 20mUnited Airlines
Wed 12/33:20 pmPWM - IDA
2 stops20h 27mUnited Airlines
Deal found 11/2$548
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:00 amIDA - BOS
2 stops13h 33mAmerican Airlines
Wed 12/175:25 amBOS - IDA
1 stop10h 02mAmerican Airlines
Deal found 11/2$571
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:10 amIDA - BOS
2 stops11h 44mAmerican Airlines
Sun 11/165:30 amBOS - IDA
1 stop9h 57mAmerican Airlines
Deal found 11/2$666
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Thu 11/135:00 amIDA - BOS
2 stops10h 22mUnited Airlines
Sun 11/165:30 amBOS - IDA
2 stops11h 46mUnited Airlines
Deal found 11/2$678
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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.
Thu 11/136:05 amIDA - BOS
2 stops31h 36mAlaska Airlines
Sun 11/164:24 pmBOS - IDA
2 stops33h 35mAlaska Airlines
Deal found 11/2$727
This United Airlines deal was found by Cheapflights users on 10/31. 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 11/257:00 amIDA - BOS
2 stops13h 42mUnited Airlines
Mon 12/13:15 pmBOS - IDA
1 stop20h 32mUnited Airlines
Deal found 10/31$784
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:10 amIDA - PWM
3 stops14h 49mAmerican Airlines
Wed 12/37:02 amPWM - IDA
3 stops17h 34mAmerican Airlines
Deal found 11/2$1,129

Cheap flight deals from Idaho Falls to New Hampshire

Keep the following information in mind while searching for Idaho Falls to New Hampshire flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$421
(Delta)

Popular in

February

Cheapest in

March

Average price

$500
Provider with most accurate pricing for Idaho Falls Fanning Field-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Boston Logan Intl flights.
Search Deals
From Idaho Falls Fanning Field to New Hampshire
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($117 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($59 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to New Hampshire 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 November 3, 2025.
Use the filters below to find and compare flights from Idaho Falls to New Hampshire that are best for you.

Fly from

Idaho Falls

Fly to

New Hampshire

Route

Depart

Return

Price

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Wed 12/10

1:17 pm-11:41 pm

1 stop8h 24m

Boston Logan Intl

Mon 12/15

6:10 am-12:37 pm

1 stop8h 27m

$421

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Tue 3/10

6:45 pm-6:13 am

1 stop9h 28m

Boston Logan Intl

Wed 3/11

3:05 pm-10:21 pm

2 stops9h 16m

$475

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Tue 3/10

4:00 pm-7:16 am

1 stop13h 16m

Boston Logan Intl

Wed 3/11

10:00 am-10:38 pm

1 stop14h 38m

$502

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Tue 3/10

10:45 am-11:48 pm

2 stops11h 03m

Boston Logan Intl

Wed 3/11

6:00 am-1:34 pm

2 stops9h 34m

$531

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 11/18

8:30 am-9:50 pm

2 stops11h 20m

Portland

Wed 12/3

3:20 pm-9:47 am

2 stops20h 27m

$548

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Wed 12/10

7:00 am-10:33 pm

2 stops13h 33m

Boston Logan Intl

Wed 12/17

5:25 am-1:27 pm

1 stop10h 02m

$571

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 3/10

6:25 am-7:36 pm

2 stops11h 11m

Portland

Wed 3/11

5:45 am-1:34 pm

2 stops9h 49m

$736

Idaho FallsManchester

IDA - MHT

IDAMHT

Idaho Falls Fanning Field

Tue 3/10

6:25 am-6:53 pm

2 stops10h 28m

Manchester

Wed 3/11

2:33 pm-3:25 pm

2 stops26h 52m

$757

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 11/18

7:10 am-11:59 pm

3 stops14h 49m

Portland

Wed 12/3

7:02 am-10:36 pm

3 stops17h 34m

$1,129

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Sun 11/30

7:00 am-10:38 am

2 stops25h 38m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 12 results
1
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Best time to book a flight from Idaho Falls to New Hampshire

Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Idaho Falls 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 Idaho Falls to New Hampshire
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 Idaho Falls to New Hampshire. 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 from for flights from Idaho Falls to New Hampshire?

    Idaho Falls Fanning Field (IDA), located 3.8 mi from the city center, is the airport you fly out of when you book flights from Idaho Falls to New Hampshire.

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

    There are many flights that can get you from Idaho Falls to New Hampshire in 8h 24m. Fly via Delta, Alaska Airlines, or United Airlines to get the fastest option. The distance between Idaho Falls and New Hampshire is about 2056 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Idaho Falls to New Hampshire one-way?

    $552 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $620 and $896, respectively.

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

    The most popular flight routes from Idaho Falls to New Hampshire are Idaho Falls Fanning Field - Boston Logan Intl, Idaho Falls Fanning Field - Portland and Idaho Falls Fanning Field - Manchester.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho Falls to New Hampshire 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

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