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Cheap flights from New Hampshire to Idaho Falls from $254

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 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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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.
Alaska Airlines Logo
7:00 am - 6:18 pm
BOS
-
IDA
13h 18m1 stop
Alaska Airlines Logo
6:58 pm - 4:20 pm
IDA
-
BOS
19h 22m1 stop
$420Alaska Airlines
Wed, Jan 28 - Wed, Feb 4
United Airlines Logo
7:25 am - 3:31 pm
BOS
-
IDA
10h 06m1 stop
United Airlines Logo
7:00 am - 3:37 pm
IDA
-
BOS
6h 37m1 stop
$421United Airlines
Wed, Jan 28 - Wed, Feb 4
American Airlines Logo
6:00 am - 1:37 pm
BOS
-
IDA
9h 37m1 stop
American Airlines Logo
7:20 am - 11:44 pm
IDA
-
BOS
14h 24m2 stops
$424American Airlines
Sun, Feb 1 - Tue, Feb 3
United Airlines Logo
7:25 am - 1:30 pm
BOS
-
IDA
8h 05m1 stop
United Airlines Logo
7:00 am - 6:57 pm
IDA
-
BOS
9h 57m2 stops
$426United Airlines
Wed, Jan 28 - Wed, Feb 4
United Airlines Logo
6:00 am - 3:31 pm
BOS
-
IDA
11h 31m2 stops
United Airlines Logo
7:00 am - 6:57 pm
IDA
-
BOS
9h 57m2 stops
$431United Airlines
Wed, Jan 28 - Wed, Feb 4
Alaska Airlines Logo
5:20 pm - 10:59 pm
BOS
-
IDA
31h 39m2 stops
Alaska Airlines Logo
6:58 pm - 4:20 pm
IDA
-
BOS
19h 22m1 stop
$432Alaska Airlines
Wed, Jan 28 - Sat, Feb 7
Alaska Airlines Logo
5:20 pm - 10:59 pm
BOS
-
IDA
31h 39m2 stops
Alaska Airlines Logo
9:00 am - 3:20 pm
IDA
-
BOS
28h 20m2 stops
$433Alaska Airlines
Wed, Jan 28 - Sat, Feb 7
Alaska Airlines Logo
7:00 am - 6:18 pm
BOS
-
IDA
13h 18m1 stop
Alaska Airlines Logo
9:00 am - 11:54 pm
IDA
-
BOS
12h 54m1 stop
$435Alaska Airlines
Wed, Jan 28 - Sat, Feb 7
American Airlines Logo
5:57 pm - 1:48 pm
PWM
-
IDA
21h 51m2 stops
American Airlines Logo
2:18 pm - 5:07 pm
IDA
-
PWM
24h 49m2 stops
$762American Airlines
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
5:57 pm - 1:48 pm
PWM
-
IDA
21h 51m2 stops
American Airlines Logo
2:18 pm - 10:23 am
IDA
-
PWM
18h 05m3 stops
$1,135American Airlines
Sat, Feb 14 - Sat, Feb 21

Alaska Airlines flights from New Hampshire to Idaho Falls

Our best Alaska Airlines deals on New Hampshire to Idaho Falls flight tickets
Alaska Airlines
Jan 28
BOS7:00 amBoston Logan Intl
13h 18m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Feb 4
IDA6:58 pmIdaho Falls Fanning Field
19h 22m
1 stop
BOS4:20 pmBoston Logan Intl
$420
Find similar
Alaska Airlines
Jan 28
BOS5:20 pmBoston Logan Intl
31h 39m
2 stops
IDA10:59 pmIdaho Falls Fanning Field
Feb 7
IDA6:58 pmIdaho Falls Fanning Field
19h 22m
1 stop
BOS4:20 pmBoston Logan Intl
$432
Find similar
Alaska Airlines
Jan 28
BOS5:20 pmBoston Logan Intl
31h 39m
2 stops
IDA10:59 pmIdaho Falls Fanning Field
Feb 7
IDA9:00 amIdaho Falls Fanning Field
28h 20m
2 stops
BOS3:20 pmBoston Logan Intl
$433
Find similar

United Airlines flights from New Hampshire to Idaho Falls

Our best United Airlines deals on New Hampshire to Idaho Falls flight tickets
United Airlines
Jan 28
BOS7:25 amBoston Logan Intl
10h 06m
1 stop
IDA3:31 pmIdaho Falls Fanning Field
Feb 4
IDA7:00 amIdaho Falls Fanning Field
6h 37m
1 stop
BOS3:37 pmBoston Logan Intl
$421
Find similar
United Airlines
Jan 28
BOS7:25 amBoston Logan Intl
8h 05m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Feb 4
IDA7:00 amIdaho Falls Fanning Field
9h 57m
2 stops
BOS6:57 pmBoston Logan Intl
$426
Find similar
United Airlines
Jan 28
BOS6:00 amBoston Logan Intl
11h 31m
2 stops
IDA3:31 pmIdaho Falls Fanning Field
Feb 4
IDA7:00 amIdaho Falls Fanning Field
9h 57m
2 stops
BOS6:57 pmBoston Logan Intl
$431
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 January 2, 2026.
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 1/28

7:00 am-6:18 pm

1 stop13h 18m

Idaho Falls Fanning Field

Wed 2/4

6:58 pm-4:20 pm

1 stop19h 22m

$420

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 1/28

7:25 am-3:31 pm

1 stop10h 06m

Idaho Falls Fanning Field

Wed 2/4

7:00 am-3:37 pm

1 stop6h 37m

$421

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sun 2/1

6:00 am-1:37 pm

1 stop9h 37m

Idaho Falls Fanning Field

Tue 2/3

7:20 am-11:44 pm

2 stops14h 24m

$424

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 1/28

7:25 am-1:30 pm

1 stop8h 05m

Idaho Falls Fanning Field

Wed 2/4

7:00 am-6:57 pm

2 stops9h 57m

$426

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 1/28

6:00 am-3:31 pm

2 stops11h 31m

Idaho Falls Fanning Field

Wed 2/4

7:00 am-6:57 pm

2 stops9h 57m

$431

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 1/28

5:20 pm-10:59 pm

2 stops31h 39m

Idaho Falls Fanning Field

Sat 2/7

6:58 pm-4:20 pm

1 stop19h 22m

$432

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 1/28

5:20 pm-10:59 pm

2 stops31h 39m

Idaho Falls Fanning Field

Sat 2/7

9:00 am-3:20 pm

2 stops28h 20m

$433

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 1/28

7:00 am-6:18 pm

1 stop13h 18m

Idaho Falls Fanning Field

Sat 2/7

9:00 am-11:54 pm

1 stop12h 54m

$435

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Sat 2/14

5:57 pm-1:48 pm

2 stops21h 51m

Idaho Falls Fanning Field

Sat 2/21

2:18 pm-5:07 pm

2 stops24h 49m

$762

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Sat 2/14

5:57 pm-1:48 pm

2 stops21h 51m

Idaho Falls Fanning Field

Sat 2/21

2:18 pm-10:23 am

3 stops18h 05m

$1,135

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $440.

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

Fastest flight time

8h 01m

Direct flights

None
The fastest flight from New Hampshire to Idaho Falls takes 8h 01m
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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