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

Delta, American Airlines, and Southwest 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 May 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

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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.

8:10 am - 1:18 pm

BOS

BOI

7h 08m

1 stop

11:39 pm - 9:46 am

BOI

BOS

8h 07m

1 stop

$285Delta

Wed, May 27 - Tue, Jun 2

7:48 am - 2:43 pm

BOS

BOI

8h 55m

1 stop

6:41 pm - 6:20 am

BOI

BOS

9h 39m

1 stop

$290Delta

Wed, May 27 - Tue, Jun 2

4:06 pm - 10:29 pm

BOS

BOI

8h 23m

1 stop

3:12 pm - 12:28 am

BOI

BOS

7h 16m

1 stop

$293American Airlines

Tue, Jun 2 - Sat, Jun 6

7:00 am - 3:06 pm

BOS

BOI

10h 06m

1 stop

3:12 pm - 12:28 am

BOI

BOS

7h 16m

1 stop

$301American Airlines

Sat, Jun 6 - Tue, Jun 30

3:10 pm - 8:58 pm

BOS

JAC

7h 48m

1 stop

1:42 pm - 11:44 pm

JAC

BOS

8h 02m

1 stop

$363United Airlines

Tue, May 26 - Tue, Jun 2

7:11 pm - 3:26 pm

BOS

IDA

22h 15m

1 stop

1:54 pm - 7:40 am

IDA

BOS

15h 46m

1 stop

$369Alaska Airlines

Fri, Jun 5 - Tue, Jun 9

7:30 am - 4:02 pm

BOS

WYS

10h 32m

2 stops

2:19 pm - 1:14 am

WYS

BOS

8h 55m

2 stops

$389United Airlines

Fri, May 29 - Tue, Jun 2

5:32 pm - 1:17 pm

BOS

IDA

21h 45m

1 stop

4:03 pm - 6:24 am

IDA

BOS

12h 21m

1 stop

$409Alaska Airlines

Thu, May 28 - Tue, Jun 2

5:40 am - 10:15 am

BOS

GEG

7h 35m

1 stop

10:35 am - 11:25 pm

GEG

BOS

9h 50m

2 stops

$409Southwest

Mon, Aug 17 - Sun, Aug 23

2:30 pm - 10:15 pm

BOS

GEG

10h 45m

2 stops

5:15 pm - 8:00 am

GEG

BOS

11h 45m

2 stops

$412Southwest

Tue, Jun 9 - Tue, Jun 16

Southwest flights from New Hampshire to Idaho

Our best Southwest deals on New Hampshire to Idaho flight tickets

Southwest

Jun 4

BOS4:30 pmBoston Logan Intl

9h 50m

1 stop

BOI12:20 amBoise Air Term. Gowen Fld

Jun 9

BOI4:05 pmBoise Air Term. Gowen Fld

6h 40m

1 stop

BOS12:45 amBoston Logan Intl

$315

Southwest

Sep 16

BOS2:45 pmBoston Logan Intl

10h 25m

2 stops

BOI11:10 pmBoise Air Term. Gowen Fld

Sep 21

BOI3:45 pmBoise Air Term. Gowen Fld

12h 15m

1 stop

BOS6:00 amBoston Logan Intl

$326

Southwest

Jul 31

BOS5:25 amBoston Logan Intl

13h 50m

1 stop

BOI5:15 pmBoise Air Term. Gowen Fld

Aug 7

BOI12:10 pmBoise Air Term. Gowen Fld

7h 40m

1 stop

BOS9:50 pmBoston Logan Intl

$350

Delta flights from New Hampshire to Idaho

Our best Delta deals on New Hampshire to Idaho flight tickets

Delta

May 27

BOS8:10 amBoston Logan Intl

7h 08m

1 stop

BOI1:18 pmBoise Air Term. Gowen Fld

Jun 2

BOI11:39 pmBoise Air Term. Gowen Fld

8h 07m

1 stop

BOS9:46 amBoston Logan Intl

$285

Delta

May 27

BOS7:48 amBoston Logan Intl

8h 55m

1 stop

BOI2:43 pmBoise Air Term. Gowen Fld

Jun 2

BOI6:41 pmBoise Air Term. Gowen Fld

9h 39m

1 stop

BOS6:20 amBoston Logan Intl

$290

Delta

Jun 2

BOS3:55 pmBoston Logan Intl

8h 16m

1 stop

BOI10:11 pmBoise Air Term. Gowen Fld

Jun 3

BOI5:45 amBoise Air Term. Gowen Fld

8h 04m

1 stop

BOS3:49 pmBoston Logan Intl

$295

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Wed 5/27

8:10 am-1:18 pm

1 stop7h 08m

Boise Air Term. Gowen Fld

Tue 6/2

11:39 pm-9:46 am

1 stop8h 07m

$285

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Wed 5/27

7:48 am-2:43 pm

1 stop8h 55m

Boise Air Term. Gowen Fld

Tue 6/2

6:41 pm-6:20 am

1 stop9h 39m

$290

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 6/2

4:06 pm-10:29 pm

1 stop8h 23m

Boise Air Term. Gowen Fld

Sat 6/6

3:12 pm-12:28 am

1 stop7h 16m

$293

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Sat 6/6

7:00 am-3:06 pm

1 stop10h 06m

Boise Air Term. Gowen Fld

Tue 6/30

3:12 pm-12:28 am

1 stop7h 16m

$301

BostonJackson

BOS - JAC

BOSJAC

Boston Logan Intl

Tue 5/26

3:10 pm-8:58 pm

1 stop7h 48m

Jackson Hole

Tue 6/2

1:42 pm-11:44 pm

1 stop8h 02m

$363

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 6/5

7:11 pm-3:26 pm

1 stop22h 15m

Idaho Falls Fanning Field

Tue 6/9

1:54 pm-7:40 am

1 stop15h 46m

$369

BostonWest Yellowstone

BOS - WYS

BOSWYS

Boston Logan Intl

Fri 5/29

7:30 am-4:02 pm

2 stops10h 32m

West Yellowstone

Tue 6/2

2:19 pm-1:14 am

2 stops8h 55m

$389

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 5/28

5:32 pm-1:17 pm

1 stop21h 45m

Idaho Falls Fanning Field

Tue 6/2

4:03 pm-6:24 am

1 stop12h 21m

$409

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Mon 8/17

5:40 am-10:15 am

1 stop7h 35m

Spokane

Sun 8/23

10:35 am-11:25 pm

2 stops9h 50m

$409

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Tue 6/9

2:30 pm-10:15 pm

2 stops10h 45m

Spokane

Tue 6/16

5:15 pm-8:00 am

2 stops11h 45m

$412

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 $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 $349 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 50m
Direct flights	None

The fastest flight from New Hampshire to Idaho takes 6h 50m

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 May 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 11,661 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.