What is the cheapest airline that flies from New Hampshire to Idaho?

Frontier, Alaska Airlines, and Delta are the most popular carriers operating from New Hampshire to Idaho

When did momondo last update prices for flights from New Hampshire to Idaho?

Prices for flights from New Hampshire to Idaho refresh daily.

How many operators does momondo search for flights from New Hampshire to Idaho?

The number of operators available for flights from New Hampshire to Idaho is 5 as of December 2025.

How old do you have to be to fly from New Hampshire to Idaho?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from New Hampshire to Idaho.

What documentation or ID do you need to fly to Idaho?

The required travel and health documents for your Idaho trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$113 Cheap Flights from New Hampshire to Idaho in 2025/26

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Find the cheapest flights from New Hampshire to Idaho

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 12:46 pm

BOS

SUN

7h 46m1 stop

8:09 am - 8:32 pm

SUN

BOS

10h 23m1 stop

$237American Airlines

Wed, Jan 21 - Sat, Jan 24

7:00 am - 12:46 pm

BOS

SUN

7h 46m1 stop

8:09 am - 11:57 pm

SUN

BOS

13h 48m2 stops

$242American Airlines

Wed, Jan 21 - Sat, Jan 24

6:44 pm - 12:23 am

BOS

GEG

8h 39m1 stop

12:10 pm - 11:54 pm

GEG

BOS

8h 44m1 stop

$248Hawaiian Airlines

Sat, Jan 17 - Fri, Jan 23

6:44 pm - 12:23 am

BOS

GEG

8h 39m1 stop

5:00 am - 3:20 pm

GEG

BOS

7h 20m1 stop

$256Alaska Airlines

Sat, Jan 17 - Wed, Jan 21

7:15 am - 12:37 pm

BOS

GEG

8h 22m1 stop

5:05 am - 4:09 pm

GEG

BOS

8h 04m1 stop

$257Delta

Thu, Jan 15 - Tue, Jan 20

5:35 am - 12:30 pm

BOS

BOI

8h 55m1 stop

7:15 pm - 6:50 am

BOI

BOS

9h 35m1 stop

$257Delta

Thu, Jan 22 - Thu, Jan 29

6:00 am - 12:46 pm

BOS

GEG

9h 46m2 stops

1:48 pm - 11:46 pm

GEG

BOS

6h 58m1 stop

$262United Airlines

Sat, Jan 17 - Tue, Jan 20

2:20 pm - 10:57 pm

BOS

BOI

10h 37m2 stops

2:37 pm - 11:46 pm

BOI

BOS

7h 09m1 stop

$262United Airlines

Thu, Jan 22 - Mon, Jan 26

6:00 am - 11:39 am

BOS

GEG

8h 39m1 stop

11:25 am - 11:49 pm

GEG

BOS

9h 24m2 stops

$282United Airlines

Fri, Jan 16 - Tue, Jan 20

7:00 am - 12:44 pm

BOS

GEG

8h 44m1 stop

10:05 am - 11:54 pm

GEG

BOS

10h 49m1 stop

$320Alaska Airlines

Wed, Jan 28 - Mon, Feb 2

American Airlines flights from New Hampshire to Idaho

Our best American Airlines deals on New Hampshire to Idaho flight tickets

American Airlines

Jan 8

PWM5:20 amPortland

11h 22m

2 stops

JAC2:42 pmJackson Hole

Jan 12

JAC5:36 pmJackson Hole

16h 29m

2 stops

PWM12:05 pmPortland

$309

Find similar

American Airlines

Jan 22

BOS10:00 amBoston Logan Intl

11h 25m

2 stops

BOI7:25 pmBoise Air Term. Gowen Fld

Jan 26

BOI7:20 amBoise Air Term. Gowen Fld

9h 42m

2 stops

BOS7:02 pmBoston Logan Intl

$315

Find similar

American Airlines

Jan 9

BOS9:45 amBoston Logan Intl

11h 40m

2 stops

BOI7:25 pmBoise Air Term. Gowen Fld

Jan 11

BOI5:54 pmBoise Air Term. Gowen Fld

9h 38m

1 stop

BOS5:32 amBoston Logan Intl

$321

Find similar

Southwest flights from New Hampshire to Idaho

Our best Southwest deals on New Hampshire to Idaho flight tickets

Southwest

Jan 22

BOS2:40 pmBoston Logan Intl

10h 30m

2 stops

BOI11:10 pmBoise Air Term. Gowen Fld

Jan 29

BOI7:45 amBoise Air Term. Gowen Fld

11h 05m

2 stops

BOS8:50 pmBoston Logan Intl

$348

Find similar

Southwest

Feb 5

BOS1:35 pmBoston Logan Intl

12h 20m

2 stops

GEG10:55 pmSpokane

Feb 10

GEG12:10 pmSpokane

7h 20m

1 stop

BOS10:30 pmBoston Logan Intl

$356

Find similar

Southwest

Feb 5

BOS1:35 pmBoston Logan Intl

12h 20m

2 stops

GEG10:55 pmSpokane

Feb 10

GEG7:05 amSpokane

10h 45m

2 stops

BOS8:50 pmBoston Logan Intl

$361

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonHailey

BOS - SUN

BOSSUN

Boston Logan Intl

Wed 1/21

7:00 am-12:46 pm

1 stop7h 46m

Hailey Sun Valley-Friedman

Sat 1/24

8:09 am-8:32 pm

1 stop10h 23m

$237

BostonHailey

BOS - SUN

BOSSUN

Boston Logan Intl

Wed 1/21

7:00 am-12:46 pm

1 stop7h 46m

Hailey Sun Valley-Friedman

Sat 1/24

8:09 am-11:57 pm

2 stops13h 48m

$242

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Sat 1/17

6:44 pm-12:23 am

1 stop8h 39m

Spokane

Fri 1/23

12:10 pm-11:54 pm

1 stop8h 44m

$248

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Sat 1/17

6:44 pm-12:23 am

1 stop8h 39m

Spokane

Wed 1/21

5:00 am-3:20 pm

1 stop7h 20m

$256

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Thu 1/15

7:15 am-12:37 pm

1 stop8h 22m

Spokane

Tue 1/20

5:05 am-4:09 pm

1 stop8h 04m

$257

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 1/22

5:35 am-12:30 pm

1 stop8h 55m

Boise Air Term. Gowen Fld

Thu 1/29

7:15 pm-6:50 am

1 stop9h 35m

$257

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Sat 1/17

6:00 am-12:46 pm

2 stops9h 46m

Spokane

Tue 1/20

1:48 pm-11:46 pm

1 stop6h 58m

$262

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 1/22

2:20 pm-10:57 pm

2 stops10h 37m

Boise Air Term. Gowen Fld

Mon 1/26

2:37 pm-11:46 pm

1 stop7h 09m

$262

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Fri 1/16

6:00 am-11:39 am

1 stop8h 39m

Spokane

Tue 1/20

11:25 am-11:49 pm

2 stops9h 24m

$282

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 1/28

7:00 am-12:44 pm

1 stop8h 44m

Spokane

Mon 2/2

10:05 am-11:54 pm

1 stop10h 49m

$320

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

What is the cheapest month to fly to Idaho?

In general, January is the cheapest month to fly from New Hampshire to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $356. If you don’t want to visit Idaho in January, then you should wait until April to fly from New Hampshire, when ticket prices are also cheap, with an average price of $421.

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

Our data shows that Saturday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $560. On the other hand, Tuesday is the most expensive day to depart from New Hampshire because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $901.

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

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from New Hampshire to Idaho at noon for as low as $614. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Idaho, so prices are often more expensive at around $814 per ticket.

How far in advance should I book a flight to Idaho?

You are more likely to see cheaper flights to Idaho from New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $467 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from New Hampshire for as low as $354 on momondo.

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

You could potentially save up to 38% on your flight if you consider stops on a New Hampshire to Idaho flight.

Cheap New Hampshire to Idaho flight deals and tips

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

Fastest flight time	6h 40m
Direct flights	None

The fastest flight from New Hampshire to Idaho takes 6h 40m

There are no direct flights from New Hampshire to Idaho. There are no popular flight routes from New Hampshire to Idaho.

Search flight deals

When did momondo last update prices for flights from New Hampshire to Idaho?
Prices for flights from New Hampshire to Idaho refresh daily.
How many operators does momondo search for flights from New Hampshire to Idaho?
The number of operators available for flights from New Hampshire to Idaho is 5 as of December 2025.
How old do you have to be to fly from New Hampshire to Idaho?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from New Hampshire to Idaho.
What documentation or ID do you need to fly to Idaho?
The required travel and health documents for your Idaho trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from New Hampshire to Idaho

Compare and see reviews for airlines that fly from New Hampshire to Idaho with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $168	Free Cancellation	Rating 7.2 11,050 reviews		Search American Airlines flights

Why use momondo?

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

Finding the right flight to Idaho from New Hampshire is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Idaho quick and easy, saving you time and money.

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

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

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

momondo provides multiple filters to help you find the best flight to Idaho from New Hampshire. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Idaho from New Hampshire are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.