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Cheap flights from New Hampshire to Idaho Falls from $250

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 5/4. 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
6:00 am - 1:17 pm
BOS
-
IDA
9h 17m
1 stop
Alaska Airlines Logo
4:03 pm - 6:20 am
IDA
-
BOS
12h 17m
1 stop
$369Alaska Airlines
Thu, May 28 - Mon, Jun 1
Alaska Airlines Logo
6:00 am - 1:17 pm
BOS
-
IDA
9h 17m
1 stop
Alaska Airlines Logo
6:00 am - 4:32 pm
IDA
-
BOS
8h 32m
1 stop
$409Alaska Airlines
Sat, May 23 - Sat, May 30
Alaska Airlines Logo
6:00 am - 1:17 pm
BOS
-
IDA
9h 17m
1 stop
Alaska Airlines Logo
4:03 pm - 5:44 am
IDA
-
BOS
11h 41m
2 stops
$426Alaska Airlines
Sat, May 23 - Sat, May 30
American Airlines Logo
11:22 am - 10:15 pm
BOS
-
IDA
12h 53m
2 stops
American Airlines Logo
2:08 pm - 12:04 am
IDA
-
BOS
7h 56m
1 stop
$433American Airlines
Thu, May 28 - Mon, Jun 1
Delta Logo
6:15 am - 12:26 pm
BOS
-
IDA
8h 11m
1 stop
Delta Logo
6:58 pm - 6:00 am
IDA
-
BOS
9h 02m
1 stop
$459Delta
Thu, Apr 23 - Sun, May 3
American Airlines Logo
7:00 am - 1:24 pm
MHT
-
IDA
8h 24m
1 stop
American Airlines Logo
12:29 pm - 11:32 pm
IDA
-
MHT
9h 03m
1 stop
$463American Airlines
Sat, Jul 4 - Wed, Jul 8
Delta Logo
12:45 pm - 10:40 pm
BOS
-
IDA
11h 55m
2 stops
Delta Logo
6:58 pm - 6:00 am
IDA
-
BOS
9h 02m
1 stop
$464Delta
Tue, Apr 28 - Sat, May 2
American Airlines Logo
6:00 am - 1:13 pm
BOS
-
IDA
9h 13m
1 stop
American Airlines Logo
7:48 am - 12:25 am
IDA
-
BOS
14h 37m
2 stops
$469American Airlines
Tue, Apr 28 - Sat, May 2
United Airlines Logo
5:30 am - 3:43 pm
PWM
-
IDA
12h 13m
2 stops
United Airlines Logo
2:31 pm - 10:18 am
IDA
-
PWM
17h 47m
3 stops
$732United Airlines
Tue, May 5 - Wed, May 13
United Airlines Logo
3:23 pm - 9:03 pm
PWM
-
IDA
7h 40m
1 stop
United Airlines Logo
10:40 am - 9:19 pm
IDA
-
PWM
8h 39m
2 stops
$773United Airlines
Tue, May 5 - Wed, May 13

Alaska Airlines flights from New Hampshire to Idaho Falls

Our best Alaska Airlines deals on New Hampshire to Idaho Falls flight tickets
Alaska Airlines
May 28
BOS6:00 amBoston Logan Intl
9h 17m
1 stop
IDA1:17 pmIdaho Falls Fanning Field
Jun 1
IDA4:03 pmIdaho Falls Fanning Field
12h 17m
1 stop
BOS6:20 amBoston Logan Intl
$369
Alaska Airlines
May 23
BOS6:00 amBoston Logan Intl
9h 17m
1 stop
IDA1:17 pmIdaho Falls Fanning Field
May 30
IDA6:00 amIdaho Falls Fanning Field
8h 32m
1 stop
BOS4:32 pmBoston Logan Intl
$409
Alaska Airlines
May 23
BOS6:00 amBoston Logan Intl
9h 17m
1 stop
IDA1:17 pmIdaho Falls Fanning Field
May 30
IDA4:03 pmIdaho Falls Fanning Field
11h 41m
2 stops
BOS5:44 amBoston Logan Intl
$426

American Airlines flights from New Hampshire to Idaho Falls

Our best American Airlines deals on New Hampshire to Idaho Falls flight tickets
American Airlines
May 28
BOS11:22 amBoston Logan Intl
12h 53m
2 stops
IDA10:15 pmIdaho Falls Fanning Field
Jun 1
IDA2:08 pmIdaho Falls Fanning Field
7h 56m
1 stop
BOS12:04 amBoston Logan Intl
$433
American Airlines
Jul 4
MHT7:00 amManchester
8h 24m
1 stop
IDA1:24 pmIdaho Falls Fanning Field
Jul 8
IDA12:29 pmIdaho Falls Fanning Field
9h 03m
1 stop
MHT11:32 pmManchester
$463
American Airlines
Apr 28
BOS6:00 amBoston Logan Intl
9h 13m
1 stop
IDA1:13 pmIdaho Falls Fanning Field
May 2
IDA7:48 amIdaho Falls Fanning Field
14h 37m
2 stops
BOS12:25 amBoston Logan Intl
$469

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 April 14, 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

Cheapest round-trip

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 5/28

6:00 am-1:17 pm

1 stop9h 17m

Idaho Falls Fanning Field

Mon 6/1

4:03 pm-6:20 am

1 stop12h 17m

$369

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 5/23

6:00 am-1:17 pm

1 stop9h 17m

Idaho Falls Fanning Field

Sat 5/30

6:00 am-4:32 pm

1 stop8h 32m

$409

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 5/23

6:00 am-1:17 pm

1 stop9h 17m

Idaho Falls Fanning Field

Sat 5/30

4:03 pm-5:44 am

2 stops11h 41m

$426

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 5/28

11:22 am-10:15 pm

2 stops12h 53m

Idaho Falls Fanning Field

Mon 6/1

2:08 pm-12:04 am

1 stop7h 56m

$433

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 4/23

6:15 am-12:26 pm

1 stop8h 11m

Idaho Falls Fanning Field

Sun 5/3

6:58 pm-6:00 am

1 stop9h 02m

$459

ManchesterIdaho Falls

MHT - IDA

MHTIDA

Manchester

Sat 7/4

7:00 am-1:24 pm

1 stop8h 24m

Idaho Falls Fanning Field

Wed 7/8

12:29 pm-11:32 pm

1 stop9h 03m

$463

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 4/28

12:45 pm-10:40 pm

2 stops11h 55m

Idaho Falls Fanning Field

Sat 5/2

6:58 pm-6:00 am

1 stop9h 02m

$464

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 4/28

6:00 am-1:13 pm

1 stop9h 13m

Idaho Falls Fanning Field

Sat 5/2

7:48 am-12:25 am

2 stops14h 37m

$469

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Tue 5/5

5:30 am-3:43 pm

2 stops12h 13m

Idaho Falls Fanning Field

Wed 5/13

2:31 pm-10:18 am

3 stops17h 47m

$732
Quickest round-trip

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Tue 5/5

3:23 pm-9:03 pm

1 stop7h 40m

Idaho Falls Fanning Field

Wed 5/13

10:40 am-9:19 pm

2 stops8h 39m

$773

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 October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $435.

Can stopping save me money on New Hampshire to Idaho Falls flights?

You could potentially save up to 55% on your flight if you consider stops on a New Hampshire to Idaho Falls flight.

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

7h 32m

Direct flights

None
The fastest flight from New Hampshire to Idaho Falls takes 7h 32m
There are no direct flights from New Hampshire to Idaho Falls. There are no popular flight routes from New Hampshire to Idaho Falls.
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Frequently asked questions about flying from New Hampshire to Idaho Falls

  • 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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