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New Hampshire

$188+ Cheap flights from Idaho Falls (IDA) to New Hampshire

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — MHT
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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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 September 16, 2025.

Round-trip from

$426
(Delta)

One-way from

$188
(Kiwi.com)

Popular in

February

Cheapest in

March

Average price

$535
From Idaho Falls Fanning Field to New Hampshire
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One-way flight from Idaho Falls Fanning Field to New Hampshire
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Highest demand for flights based on searches. 13% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 10/110:50 amIDA - BOS
1 stop7h 11mUnited Airlines
Tue 10/79:30 amBOS - IDA
2 stops9h 48mUnited Airlines
Deal found 9/14$456
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/291:35 pmIDA - BOS
1 stop8h 07mAmerican Airlines
Thu 10/212:40 pmBOS - IDA
1 stop10h 43mAmerican Airlines
Deal found 9/15$481
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 11/133:50 pmIDA - BOS
1 stop13h 39mAlaska Airlines
Sun 11/169:00 amBOS - IDA
1 stop16h 59mAlaska Airlines
Deal found 9/15$485
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/134:15 pmIDA - BOS
1 stop25h 40mUnited Airlines
Sun 11/165:30 amBOS - IDA
2 stops11h 46mUnited Airlines
Deal found 9/15$517
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/306:13 amIDA - BOS
1 stop11h 10mAlaska Airlines
Sat 10/47:20 amBOS - IDA
1 stop10h 18mAlaska Airlines
Deal found 9/15$530
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/305:00 amIDA - BOS
2 stops10h 54mUnited Airlines
Fri 10/35:05 pmBOS - IDA
1 stop18h 43mUnited Airlines
Deal found 9/15$547
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/35:00 amIDA - BOS
1 stop14h 59mUnited Airlines
Mon 10/66:00 amBOS - IDA
2 stops13h 15mUnited Airlines
Deal found 9/15$559
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/306:13 amIDA - BOS
1 stop11h 10mAlaska Airlines
Fri 10/37:20 amBOS - IDA
1 stop17h 19mAlaska Airlines
Deal found 9/15$562
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/72:35 pmIDA - PWM
2 stops16h 36mUnited Airlines
Fri 10/106:25 pmPWM - IDA
2 stops17h 23mUnited Airlines
Deal found 9/15$676
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 10/1110:50 amIDA - PWM
2 stops25h 43mUnited Airlines
Tue 10/145:41 pmPWM - IDA
2 stops18h 07mUnited Airlines
Deal found 9/16$714
This American Airlines deal was found by Cheapflights users on 9/13. 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 9/291:35 pmIDA - PWM
2 stops20h 09mAmerican Airlines
Fri 10/31:02 pmPWM - IDA
2 stops10h 23mAmerican Airlines
Deal found 9/13$715
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 9/292:35 pmIDA - PWM
2 stops16h 36mUnited Airlines
Fri 10/33:39 pmPWM - IDA
1 stop20h 09mUnited Airlines
Deal found 9/13$737

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 September 16, 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 10/29

6:53 pm-6:40 am

1 stop9h 47m

Boston Logan Intl

Sun 11/2

5:15 am-11:33 am

1 stop8h 18m

$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

12:55 pm-10:21 pm

2 stops11h 26m

$426

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Sat 11/15

7:10 am-10:53 pm

2 stops13h 43m

Boston Logan Intl

Sun 11/16

5:30 am-1:27 pm

1 stop9h 57m

$441

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Wed 10/1

10:50 am-8:01 pm

1 stop7h 11m

Boston Logan Intl

Tue 10/7

5:30 am-1:33 pm

2 stops10h 03m

$456

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Thu 11/13

3:50 pm-7:29 am

1 stop13h 39m

Boston Logan Intl

Sun 11/16

9:00 am-11:59 pm

1 stop16h 59m

$485

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Mon 9/29

1:35 pm-11:42 pm

1 stop8h 07m

Boston Logan Intl

Thu 10/2

11:00 am-9:23 pm

2 stops12h 23m

$486

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Sat 11/15

6:05 am-5:23 pm

1 stop9h 18m

Boston Logan Intl

Sun 11/16

9:00 am-11:59 pm

1 stop16h 59m

$501

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 3/10

10:45 am-9:27 pm

2 stops8h 42m

Portland

Wed 3/11

6:00 am-5:22 pm

2 stops13h 22m

$610

Idaho FallsManchester

IDA - MHT

IDAMHT

Idaho Falls Fanning Field

Tue 3/10

10:45 am-11:59 pm

2 stops11h 14m

Manchester

Wed 3/11

9:40 am-5:22 pm

2 stops9h 42m

$636

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 10/7

2:35 pm-9:11 am

2 stops16h 36m

Portland

Fri 10/10

6:25 pm-9:48 am

2 stops17h 23m

$676

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 24 results
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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 42m. Fly via Delta, American Airlines, or United Airlines to get the fastest option. The distance between Idaho Falls and New Hampshire is about 2066 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

  • What is the cheapest month to book a flight from Idaho Falls to New Hampshire?

    Currently, January is the cheapest month in which you can book a flight from Idaho Falls to New Hampshire (average of $334). Flying from Idaho Falls to New Hampshire in April is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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