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Cheap flights from New Hampshire to Idaho Falls from $203

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New Hampshire to Idaho Falls departing on 12/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from New Hampshire to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:30 am - 1:32 pmBOS-IDA
10h 02m1 stop
American Airlines Logo
6:42 am - 10:54 pmIDA-BOS
14h 12m2 stops
$393American Airlines
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Wed, Feb 18 - Tue, Feb 24
American Airlines Logo
12:00 pm - 11:07 pmBOS-IDA
13h 07m2 stops
American Airlines Logo
6:42 am - 10:54 pmIDA-BOS
14h 12m2 stops
$398American Airlines
Find Deal
Wed, Feb 18 - Wed, Feb 25
Alaska Airlines Logo
7:00 am - 3:23 pmBOS-IDA
10h 23m1 stop
Alaska Airlines Logo
8:00 am - 11:59 pmIDA-BOS
13h 59m1 stop
$420Alaska Airlines
Find Deal
Wed, Feb 18 - Wed, Feb 25
Delta Logo
6:10 am - 12:32 pmBOS-IDA
8h 22m1 stop
Delta Logo
6:28 pm - 6:00 amIDA-BOS
9h 32m1 stop
$421Delta
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Tue, Mar 3 - Wed, Mar 4
Delta Logo
12:50 pm - 10:21 pmBOS-IDA
11h 31m2 stops
Delta Logo
6:28 pm - 6:00 amIDA-BOS
9h 32m1 stop
$426Delta
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Tue, Mar 3 - Wed, Mar 4
Delta Logo
6:10 am - 12:32 pmBOS-IDA
8h 22m1 stop
Delta Logo
6:28 pm - 6:00 amIDA-BOS
9h 32m1 stop
$436Delta
Find Deal
Tue, Mar 3 - Wed, Mar 4
Alaska Airlines Logo
7:00 am - 6:18 pmBOS-IDA
13h 18m1 stop
Alaska Airlines Logo
9:00 am - 4:20 pmIDA-BOS
29h 20m1 stop
$472Alaska Airlines
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Sat, Jan 31 - Sat, Feb 7
United Airlines Logo
3:15 pm - 9:56 amBOS-IDA
20h 41m1 stop
United Airlines Logo
2:40 pm - 11:46 pmIDA-BOS
7h 06m1 stop
$518United Airlines
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Fri, Jan 30 - Fri, Feb 6
United Airlines Logo
10:30 am - 9:20 pmBOS-IDA
12h 50m2 stops
United Airlines Logo
5:30 pm - 10:49 amIDA-BOS
15h 19m2 stops
$528United Airlines
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Tue, Mar 3 - Wed, Mar 4
Multiple Airlines Logo
5:45 am - 2:55 pmBOS-IDA
35h 10m3 stops
Multiple Airlines Logo
9:43 pm - 11:53 pmIDA-BOS
24h 10m3 stops
$542Multiple Airlines
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Thu, Nov 20 - Mon, Nov 24

Delta flights from New Hampshire to Idaho Falls

Our best Delta deals on New Hampshire to Idaho Falls flight tickets
Delta
Mar 3
BOS6:10 amBoston Logan Intl
8h 22m
1 stop
IDA12:32 pmIdaho Falls Fanning Field
Mar 4
IDA6:28 pmIdaho Falls Fanning Field
9h 32m
1 stop
BOS6:00 amBoston Logan Intl
$421
Find similar
Delta
Mar 3
BOS12:50 pmBoston Logan Intl
11h 31m
2 stops
IDA10:21 pmIdaho Falls Fanning Field
Mar 4
IDA6:28 pmIdaho Falls Fanning Field
9h 32m
1 stop
BOS6:00 amBoston Logan Intl
$426
Find similar
Delta
Mar 3
BOS6:10 amBoston Logan Intl
8h 22m
1 stop
IDA12:32 pmIdaho Falls Fanning Field
Mar 4
IDA6:28 pmIdaho Falls Fanning Field
9h 32m
1 stop
BOS6:00 amBoston Logan Intl
$436
Find similar

Alaska Airlines flights from New Hampshire to Idaho Falls

Our best Alaska Airlines deals on New Hampshire to Idaho Falls flight tickets
Alaska Airlines
Feb 18
BOS7:00 amBoston Logan Intl
10h 23m
1 stop
IDA3:23 pmIdaho Falls Fanning Field
Feb 25
IDA8:00 amIdaho Falls Fanning Field
13h 59m
1 stop
BOS11:59 pmBoston Logan Intl
$420
Find similar
Alaska Airlines
Jan 31
BOS7:00 amBoston Logan Intl
13h 18m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Feb 7
IDA9:00 amIdaho Falls Fanning Field
29h 20m
1 stop
BOS4:20 pmBoston Logan Intl
$472
Find similar
Alaska Airlines
Jan 7
BOS6:44 pmBoston Logan Intl
25h 34m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Jan 13
IDA9:00 amIdaho Falls Fanning Field
12h 54m
1 stop
BOS11:54 pmBoston Logan Intl
$482
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from New Hampshire to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 2/18

5:30 am-1:32 pm

1 stop10h 02m

Idaho Falls Fanning Field

Tue 2/24

6:42 am-10:54 pm

2 stops14h 12m

$393

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 2/18

12:00 pm-11:07 pm

2 stops13h 07m

Idaho Falls Fanning Field

Wed 2/25

6:42 am-10:54 pm

2 stops14h 12m

$398

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 2/18

7:00 am-3:23 pm

1 stop10h 23m

Idaho Falls Fanning Field

Wed 2/25

8:00 am-11:59 pm

1 stop13h 59m

$420

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 3/3

6:10 am-12:32 pm

1 stop8h 22m

Idaho Falls Fanning Field

Wed 3/4

6:28 pm-6:00 am

1 stop9h 32m

$421

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 3/3

12:50 pm-10:21 pm

2 stops11h 31m

Idaho Falls Fanning Field

Wed 3/4

6:28 pm-6:00 am

1 stop9h 32m

$426

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 3/3

6:10 am-12:32 pm

1 stop8h 22m

Idaho Falls Fanning Field

Wed 3/4

6:28 pm-6:00 am

1 stop9h 32m

$436

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 1/31

7:00 am-6:18 pm

1 stop13h 18m

Idaho Falls Fanning Field

Sat 2/7

9:00 am-4:20 pm

1 stop29h 20m

$472

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 1/30

3:15 pm-9:56 am

1 stop20h 41m

Idaho Falls Fanning Field

Fri 2/6

2:40 pm-11:46 pm

1 stop7h 06m

$518

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 3/3

10:30 am-9:20 pm

2 stops12h 50m

Idaho Falls Fanning Field

Wed 3/4

5:30 pm-10:49 am

2 stops15h 19m

$528

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 11/20

5:45 am-2:55 pm

3 stops35h 10m

Idaho Falls Fanning Field

Mon 11/24

9:43 pm-11:53 pm

3 stops24h 10m

$542

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from New Hampshire to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $445.

What is the cheapest day to depart on your flight to Idaho Falls?

Our data shows that Tuesday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $618. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Wednesday is $865.

What is the cheapest time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is in the evening. Flights from New Hampshire to Idaho Falls during this time can be as low as $523. Try not to purchase tickets in the morning because they tend to be around $789. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap New Hampshire to Idaho Falls flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New Hampshire to Idaho Falls

Direct flights

None
There are no direct flights from New Hampshire to Idaho Falls. There are no popular flight routes from New Hampshire to Idaho Falls.
Search flight deals

  • When did momondo last update prices for flights from New Hampshire to Idaho Falls Fanning Field Airport?

    Prices for flights from New Hampshire to Idaho Falls Fanning Field Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from New Hampshire to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from New Hampshire to Idaho Falls Fanning Field Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from New Hampshire to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The travel and health documents required for your trip to Idaho Falls Fanning Field Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho Falls Fanning Field Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Idaho Falls?

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

Why use momondo?

Why should I use momondo to find a flight deal from New Hampshire to Idaho Falls?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from New Hampshire to Idaho Falls for you.

Can I find flights from New Hampshire to Idaho Falls with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for New Hampshire to Idaho Falls flights to just show those with flexible booking policies.

How can momondo help me find flights from New Hampshire to Idaho Falls?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from New Hampshire to Idaho Falls.

I’m not ready to book a flight from New Hampshire to Idaho Falls right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Idaho Falls, momondo offers a useful price alert feature which will track prices for flights to Idaho Falls from New Hampshire and alert you when they change.

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