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

Alaska Airlines, American Airlines, and United 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 October 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.

$139 Cheap Flights from New Hampshire to Idaho in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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 - 1:05 pmBOS-GEG

7h 55m1 stop

1:10 pm - 11:48 pmGEG-BOS

7h 38m1 stop

$279Delta

Find Deal

Wed, Oct 29 - Tue, Nov 4

8:10 am - 2:02 pmBOS-BOI

7h 52m1 stop

1:00 pm - 11:48 pmBOI-BOS

8h 48m1 stop

$279Delta

Find Deal

Tue, Oct 28 - Tue, Nov 4

6:36 am - 2:24 pmBOS-GEG

10h 48m2 stops

1:14 pm - 11:43 pmGEG-BOS

7h 29m1 stop

$284American Airlines

Find Deal

Fri, Oct 31 - Wed, Nov 5

2:04 pm - 10:22 pmBOS-BOI

10h 18m2 stops

1:40 pm - 11:19 pmBOI-BOS

7h 39m1 stop

$284American Airlines

Find Deal

Tue, Oct 28 - Tue, Nov 4

7:00 am - 1:58 pmBOS-GEG

9h 58m1 stop

11:42 am - 12:20 amGEG-BOS

9h 38m1 stop

$298Alaska Airlines

Find Deal

Thu, Nov 6 - Wed, Nov 12

5:00 pm - 10:25 pmBOS-GEG

8h 25m1 stop

6:05 am - 9:05 pmGEG-BOS

12h 00m2 stops

$305Southwest

Find Deal

Thu, Dec 4 - Tue, Dec 9

7:00 am - 3:12 pmBOS-BOI

10h 12m1 stop

4:20 pm - 3:24 pmBOI-BOS

21h 04m1 stop

$307Alaska Airlines

Find Deal

Sat, Nov 8 - Tue, Nov 11

3:30 pm - 11:50 pmBOS-GEG

11h 20m2 stops

6:35 am - 9:35 pmGEG-BOS

12h 00m2 stops

$329Southwest

Find Deal

Thu, Oct 30 - Tue, Nov 4

6:00 am - 11:39 amBOS-BOI

7h 39m1 stop

6:20 am - 5:06 pmBOI-BOS

8h 46m1 stop

$337United Airlines

Find Deal

Sat, Oct 25 - Sat, Nov 1

6:00 am - 1:33 pmBOS-BOI

9h 33m2 stops

6:20 am - 5:06 pmBOI-BOS

8h 46m1 stop

$342United Airlines

Find Deal

Sat, Oct 25 - Sat, Nov 1

United Airlines flights from New Hampshire to Idaho

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

United Airlines

Oct 25

BOS6:00 amBoston Logan Intl

7h 39m

1 stop

BOI11:39 amBoise Air Term. Gowen Fld

Nov 1

BOI6:20 amBoise Air Term. Gowen Fld

8h 46m

1 stop

BOS5:06 pmBoston Logan Intl

$337

Find similar

United Airlines

Oct 25

BOS6:00 amBoston Logan Intl

9h 33m

2 stops

BOI1:33 pmBoise Air Term. Gowen Fld

Nov 1

BOI6:20 amBoise Air Term. Gowen Fld

8h 46m

1 stop

BOS5:06 pmBoston Logan Intl

$342

Find similar

United Airlines

Jan 9

BOS10:30 amBoston Logan Intl

12h 59m

2 stops

SUN9:29 pmHailey Sun Valley-Friedman

Jan 12

SUN12:43 pmHailey Sun Valley-Friedman

7h 06m

1 stop

BOS9:49 pmBoston Logan Intl

$346

Find similar

American Airlines flights from New Hampshire to Idaho

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

American Airlines

Oct 28

BOS2:04 pmBoston Logan Intl

10h 18m

2 stops

BOI10:22 pmBoise Air Term. Gowen Fld

Nov 4

BOI1:40 pmBoise Air Term. Gowen Fld

7h 39m

1 stop

BOS11:19 pmBoston Logan Intl

$284

Find similar

American Airlines

Oct 28

BOS2:04 pmBoston Logan Intl

10h 18m

2 stops

BOI10:22 pmBoise Air Term. Gowen Fld

Nov 4

BOI1:25 pmBoise Air Term. Gowen Fld

7h 37m

1 stop

BOS11:02 pmBoston Logan Intl

$304

Find similar

American Airlines

Dec 11

BOS5:30 amBoston Logan Intl

9h 04m

1 stop

BOI12:34 pmBoise Air Term. Gowen Fld

Jan 14

BOI7:20 amBoise Air Term. Gowen Fld

11h 10m

2 stops

BOS8:30 pmBoston Logan Intl

$324

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 10/29

8:10 am-1:05 pm

1 stop7h 55m

Spokane

Tue 11/4

1:10 pm-11:48 pm

1 stop7h 38m

$279

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 10/28

8:10 am-2:02 pm

1 stop7h 52m

Boise Air Term. Gowen Fld

Tue 11/4

1:00 pm-11:48 pm

1 stop8h 48m

$279

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Fri 10/31

6:36 am-2:24 pm

2 stops10h 48m

Spokane

Wed 11/5

1:14 pm-11:43 pm

1 stop7h 29m

$284

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 10/28

2:04 pm-10:22 pm

2 stops10h 18m

Boise Air Term. Gowen Fld

Tue 11/4

1:40 pm-11:19 pm

1 stop7h 39m

$284

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Thu 11/6

7:00 am-1:58 pm

1 stop9h 58m

Spokane

Wed 11/12

11:42 am-12:20 am

1 stop9h 38m

$298

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Thu 12/4

5:00 pm-10:25 pm

1 stop8h 25m

Spokane

Tue 12/9

6:05 am-9:05 pm

2 stops12h 00m

$305

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Sat 11/8

7:00 am-3:12 pm

1 stop10h 12m

Boise Air Term. Gowen Fld

Tue 11/11

4:20 pm-3:24 pm

1 stop21h 04m

$307

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Thu 10/30

3:30 pm-11:50 pm

2 stops11h 20m

Spokane

Tue 11/4

6:35 am-9:35 pm

2 stops12h 00m

$329

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Sat 10/25

6:00 am-11:39 am

1 stop7h 39m

Boise Air Term. Gowen Fld

Sat 11/1

6:20 am-5:06 pm

1 stop8h 46m

$337

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Sat 10/25

6:00 am-1:33 pm

2 stops9h 33m

Boise Air Term. Gowen Fld

Sat 11/1

6:20 am-5:06 pm

1 stop8h 46m

$342

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 $367. If you don’t want to visit Idaho in January, then you should wait until March to fly from New Hampshire, when ticket prices are also cheap, with an average price of $426.

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 $464 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 $379 on momondo.

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

You could potentially save up to 29% 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

Direct flights	None

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 October 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 10,000 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.