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

United Airlines, Southwest, and American Airlines 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 March 2026.

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.

$137 Cheap Flights from New Hampshire to Idaho in 2026

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Find the cheapest flights from New Hampshire to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 am - 11:56 am

BOS

BOI

7h 46m

1 stop

6:41 pm - 6:20 am

BOI

BOS

9h 39m

1 stop

$273Delta

Tue, May 19 - Tue, Jun 2

8:10 am - 1:11 pm

BOS

GEG

8h 01m

1 stop

6:45 pm - 6:20 am

GEG

BOS

8h 35m

1 stop

$275Delta

Tue, May 12 - Tue, May 19

8:26 am - 4:55 pm

BOS

GEG

11h 29m

1 stop

6:34 am - 9:01 pm

GEG

BOS

11h 27m

2 stops

$293American Airlines

Tue, May 12 - Tue, May 19

5:05 pm - 11:59 pm

BOS

BOI

8h 54m

1 stop

7:20 pm - 7:12 am

BOI

BOS

9h 52m

1 stop

$293Alaska Airlines

Sat, May 2 - Tue, May 5

7:07 am - 12:49 pm

PWM

BOI

7h 42m

1 stop

1:29 pm - 12:17 am

BOI

PWM

8h 48m

1 stop

$299American Airlines

Wed, May 6 - Tue, May 12

5:05 pm - 11:30 pm

BOS

BOI

8h 25m

1 stop

6:00 am - 6:35 pm

BOI

BOS

10h 35m

2 stops

$306Southwest

Mon, Apr 27 - Tue, May 5

5:05 pm - 11:59 pm

BOS

BOI

8h 54m

1 stop

6:08 pm - 7:12 am

BOI

BOS

11h 04m

1 stop

$309Alaska Airlines

Sat, May 2 - Tue, May 5

3:45 pm - 12:45 am

BOS

BOI

11h 00m

2 stops

6:00 am - 6:35 pm

BOI

BOS

10h 35m

2 stops

$311Southwest

Mon, Apr 27 - Tue, May 5

7:05 am - 3:15 pm

BOS

GEG

11h 10m

2 stops

1:41 pm - 11:59 pm

GEG

BOS

7h 18m

1 stop

$322United Airlines

Sat, Apr 25 - Sat, May 2

6:00 am - 11:32 am

BOS

BOI

7h 32m

1 stop

6:30 am - 5:04 pm

BOI

BOS

8h 34m

1 stop

$343United Airlines

Wed, Jun 3 - Sat, Jun 6

United Airlines flights from New Hampshire to Idaho

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

United Airlines

Apr 25

BOS7:05 amBoston Logan Intl

11h 10m

2 stops

GEG3:15 pmSpokane

May 2

GEG1:41 pmSpokane

7h 18m

1 stop

BOS11:59 pmBoston Logan Intl

$322

United Airlines

Jun 3

BOS6:00 amBoston Logan Intl

7h 32m

1 stop

BOI11:32 amBoise Air Term. Gowen Fld

Jun 6

BOI6:30 amBoise Air Term. Gowen Fld

8h 34m

1 stop

BOS5:04 pmBoston Logan Intl

$343

United Airlines

May 2

BOS9:30 amBoston Logan Intl

13h 47m

2 stops

BOI9:17 pmBoise Air Term. Gowen Fld

May 5

BOI5:00 amBoise Air Term. Gowen Fld

6h 47m

1 stop

BOS1:47 pmBoston Logan Intl

$408

American Airlines flights from New Hampshire to Idaho

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

American Airlines

May 12

BOS8:26 amBoston Logan Intl

11h 29m

1 stop

GEG4:55 pmSpokane

May 19

GEG6:34 amSpokane

11h 27m

2 stops

BOS9:01 pmBoston Logan Intl

$293

American Airlines

May 6

PWM7:07 amPortland

7h 42m

1 stop

BOI12:49 pmBoise Air Term. Gowen Fld

May 12

BOI1:29 pmBoise Air Term. Gowen Fld

8h 48m

1 stop

PWM12:17 amPortland

$299

American Airlines

May 5

PWM7:07 amPortland

8h 25m

1 stop

GEG12:32 pmSpokane

May 12

GEG6:00 amSpokane

15h 17m

2 stops

PWM12:17 amPortland

$304

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 5/19

6:10 am-11:56 am

1 stop7h 46m

Boise Air Term. Gowen Fld

Tue 6/2

6:41 pm-6:20 am

1 stop9h 39m

$273

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Tue 5/12

8:10 am-1:11 pm

1 stop8h 01m

Spokane

Tue 5/19

6:45 pm-6:20 am

1 stop8h 35m

$275

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Tue 5/12

8:26 am-4:55 pm

1 stop11h 29m

Spokane

Tue 5/19

6:34 am-9:01 pm

2 stops11h 27m

$293

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Sat 5/2

5:05 pm-11:59 pm

1 stop8h 54m

Boise Air Term. Gowen Fld

Tue 5/5

7:20 pm-7:12 am

1 stop9h 52m

$293

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 5/6

7:07 am-12:49 pm

1 stop7h 42m

Boise Air Term. Gowen Fld

Tue 5/12

1:29 pm-12:17 am

1 stop8h 48m

$299

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Mon 4/27

5:05 pm-11:30 pm

1 stop8h 25m

Boise Air Term. Gowen Fld

Tue 5/5

6:00 am-6:35 pm

2 stops10h 35m

$306

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Sat 5/2

5:05 pm-11:59 pm

1 stop8h 54m

Boise Air Term. Gowen Fld

Tue 5/5

6:08 pm-7:12 am

1 stop11h 04m

$309

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Mon 4/27

3:45 pm-12:45 am

2 stops11h 00m

Boise Air Term. Gowen Fld

Tue 5/5

6:00 am-6:35 pm

2 stops10h 35m

$311

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Sat 4/25

7:05 am-3:15 pm

2 stops11h 10m

Spokane

Sat 5/2

1:41 pm-11:59 pm

1 stop7h 18m

$322

Quickest round-trip

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Wed 6/3

6:00 am-11:32 am

1 stop7h 32m

Boise Air Term. Gowen Fld

Sat 6/6

6:30 am-5:04 pm

1 stop8h 34m

$343

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 $396. If you don’t want to visit Idaho in January, then you should wait until July to fly from New Hampshire, when ticket prices are also cheap, with an average price of $427.

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 $468 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 $361 on momondo.

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

You could potentially save up to 4% 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	7h 02m
Direct flights	None

The fastest flight from New Hampshire to Idaho takes 7h 02m

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 March 2026.
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 $464	Free Cancellation	Rating 7.1 11,507 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.