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

American Airlines, Southwest, 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 June 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.

$143 Cheap Flights from New Hampshire to Idaho in 2026

Discover deals from 900+ travel sites with momondo.

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.

7:10 am - 2:29 pm

BOS

BOI

9h 19m

1 stop

2:58 pm - 11:58 pm

BOI

BOS

7h 00m

1 stop

$285American Airlines

Tue, Aug 18 - Sat, Aug 22

8:20 am - 8:35 pm

BOS

BOI

14h 15m

1 stop

3:35 pm - 6:50 am

BOI

BOS

13h 15m

1 stop

$296Southwest

Tue, Oct 6 - Tue, Oct 13

3:40 pm - 11:51 pm

BOS

BOI

10h 11m

1 stop

1:05 pm - 11:47 pm

BOI

BOS

8h 42m

1 stop

$299Delta

Tue, Jul 14 - Tue, Jul 21

8:15 am - 1:44 pm

BOS

BOI

7h 29m

1 stop

11:10 pm - 9:42 am

BOI

BOS

8h 32m

1 stop

$306Delta

Tue, Sep 15 - Mon, Sep 21

7:10 am - 2:29 pm

BOS

BOI

9h 19m

1 stop

2:58 pm - 11:58 pm

BOI

BOS

7h 00m

1 stop

$307American Airlines

Tue, Aug 18 - Sat, Aug 22

11:15 am - 8:40 pm

BOS

BOI

11h 25m

1 stop

2:55 pm - 12:30 am

BOI

BOS

7h 35m

1 stop

$308Southwest

Thu, Aug 20 - Thu, Aug 27

9:00 am - 3:43 pm

BOS

GEG

9h 43m

1 stop

12:41 pm - 11:59 pm

GEG

BOS

8h 18m

1 stop

$348Alaska Airlines

Wed, Nov 4 - Sun, Nov 8

6:00 am - 11:26 am

PWM

BOI

7h 26m

1 stop

7:05 pm - 9:08 am

BOI

PWM

12h 03m

2 stops

$352United Airlines

Wed, Sep 16 - Sat, Sep 19

6:00 am - 11:26 am

PWM

BOI

7h 26m

1 stop

12:28 pm - 9:23 pm

BOI

PWM

6h 55m

1 stop

$355United Airlines

Wed, Sep 9 - Wed, Sep 23

7:59 pm - 11:15 am

BOS

JAC

17h 16m

1 stop

2:10 pm - 6:09 am

JAC

BOS

13h 59m

1 stop

$413Alaska Airlines

Sat, Sep 5 - Sat, Sep 12

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United Airlines flights from New Hampshire to Idaho

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

United Airlines

Jul 8

BOS6:00 amBoston Logan Intl

7h 32m

1 stop

BOI11:32 amBoise Air Term. Gowen Fld

Jul 13

BOI7:05 pmBoise Air Term. Gowen Fld

9h 16m

1 stop

BOS6:21 amBoston Logan Intl

$339

United Airlines

Sep 16

PWM6:00 amPortland

7h 26m

1 stop

BOI11:26 amBoise Air Term. Gowen Fld

Sep 19

BOI7:05 pmBoise Air Term. Gowen Fld

12h 03m

2 stops

PWM9:08 amPortland

$352

United Airlines

Sep 9

PWM6:00 amPortland

7h 26m

1 stop

BOI11:26 amBoise Air Term. Gowen Fld

Sep 23

BOI12:28 pmBoise Air Term. Gowen Fld

6h 55m

1 stop

PWM9:23 pmPortland

$355

Southwest flights from New Hampshire to Idaho

Our best Southwest deals on New Hampshire to Idaho flight tickets

Southwest

Oct 6

BOS8:20 amBoston Logan Intl

14h 15m

1 stop

BOI8:35 pmBoise Air Term. Gowen Fld

Oct 13

BOI3:35 pmBoise Air Term. Gowen Fld

13h 15m

1 stop

BOS6:50 amBoston Logan Intl

$296

Southwest

Aug 20

BOS11:15 amBoston Logan Intl

11h 25m

1 stop

BOI8:40 pmBoise Air Term. Gowen Fld

Aug 27

BOI2:55 pmBoise Air Term. Gowen Fld

7h 35m

1 stop

BOS12:30 amBoston Logan Intl

$308

Southwest

Aug 20

BOS5:50 amBoston Logan Intl

10h 20m

2 stops

BOI2:10 pmBoise Air Term. Gowen Fld

Aug 27

BOI2:55 pmBoise Air Term. Gowen Fld

7h 35m

1 stop

BOS12:30 amBoston Logan Intl

$314

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 8/18

7:10 am-2:29 pm

1 stop9h 19m

Boise Air Term. Gowen Fld

Sat 8/22

2:58 pm-11:58 pm

1 stop7h 00m

$285

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 10/6

8:20 am-8:35 pm

1 stop14h 15m

Boise Air Term. Gowen Fld

Tue 10/13

3:35 pm-6:50 am

1 stop13h 15m

$296

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 7/14

3:40 pm-11:51 pm

1 stop10h 11m

Boise Air Term. Gowen Fld

Tue 7/21

1:05 pm-11:47 pm

1 stop8h 42m

$299

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 9/15

8:15 am-1:44 pm

1 stop7h 29m

Boise Air Term. Gowen Fld

Mon 9/21

11:10 pm-9:42 am

1 stop8h 32m

$306

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 8/18

7:10 am-2:29 pm

1 stop9h 19m

Boise Air Term. Gowen Fld

Sat 8/22

2:58 pm-11:58 pm

1 stop7h 00m

$307

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 8/20

11:15 am-8:40 pm

1 stop11h 25m

Boise Air Term. Gowen Fld

Thu 8/27

2:55 pm-12:30 am

1 stop7h 35m

$308

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 11/4

9:00 am-3:43 pm

1 stop9h 43m

Spokane

Sun 11/8

12:41 pm-11:59 pm

1 stop8h 18m

$348

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 9/16

6:00 am-11:26 am

1 stop7h 26m

Boise Air Term. Gowen Fld

Sat 9/19

7:05 pm-9:08 am

2 stops12h 03m

$352

Quickest round-trip

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 9/9

6:00 am-11:26 am

1 stop7h 26m

Boise Air Term. Gowen Fld

Wed 9/23

12:28 pm-9:23 pm

1 stop6h 55m

$355

BostonJackson

BOS - JAC

BOSJAC

Boston Logan Intl

Sat 9/5

7:59 pm-11:15 am

1 stop17h 16m

Jackson Hole

Sat 9/12

2:10 pm-6:09 am

1 stop13h 59m

$413

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, April 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 $0. If you don’t want to visit Idaho in April, then you should wait until March to fly from New Hampshire, when ticket prices are also cheap, with an average price of $0.

How far in advance should I book a flight from New Hampshire 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 $479 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 $313 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	6h 48m
Direct flights	None

The fastest flight from New Hampshire to Idaho takes 6h 48m

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

Search flight deals

Frequently asked questions about flying 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 June 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 $168	Free Cancellation	Rating 7.1 11,774 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.