What is the cheapest airline that flies from Boston Logan Intl to Idaho?

Delta, American Airlines, and Southwest are the most popular carriers operating from Boston Logan Intl to Idaho

What airlines fly to Idaho?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Idaho from Boston according to our data. Delta is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Boston Logan Intl Airport to Idaho?

Prices for flights from Boston Logan Intl Airport to Idaho are refreshed on a daily basis.

How many operators does momondo search for flights from Boston Logan Intl Airport to Idaho?

The number of operators available for flights from Boston Logan Intl Airport to Idaho is 5 as of July 2026.

How old do you have to be to fly from Boston Logan Intl Airport to Idaho?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Idaho.

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

The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$129 Cheap Flights from Boston to Idaho in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:15 am - 8:40 pm

BOS

BOI

11h 25m

1 stop

1:50 pm - 12:25 am

BOI

BOS

8h 35m

1 stop

$257Southwest

Fri, Aug 21 - Sat, Aug 29

7:10 am - 2:29 pm

BOS

BOI

9h 19m

1 stop

2:58 pm - 11:58 pm

BOI

BOS

7h 00m

1 stop

$257American Airlines

Sun, Aug 23 - Sat, Aug 29

3:25 pm - 10:35 pm

BOS

BOI

9h 10m

2 stops

1:50 pm - 12:25 am

BOI

BOS

8h 35m

1 stop

$262Southwest

Fri, Aug 21 - Sat, Aug 29

7:45 am - 3:18 pm

BOS

BOI

9h 33m

1 stop

12:23 pm - 12:17 am

BOI

BOS

9h 54m

1 stop

$267Delta

Thu, Aug 20 - Fri, Aug 28

6:30 am - 2:09 pm

BOS

GEG

10h 39m

1 stop

5:40 am - 5:45 pm

GEG

BOS

9h 05m

1 stop

$277American Airlines

Thu, Aug 20 - Tue, Aug 25

3:10 pm - 8:46 pm

BOS

GEG

8h 36m

1 stop

1:37 pm - 11:50 pm

GEG

BOS

7h 13m

1 stop

$297United Airlines

Wed, Aug 26 - Sat, Aug 29

6:00 am - 11:39 am

BOS

GEG

8h 39m

1 stop

1:37 pm - 11:50 pm

GEG

BOS

7h 13m

1 stop

$297United Airlines

Tue, Aug 25 - Sat, Aug 29

7:45 am - 3:18 pm

BOS

BOI

9h 33m

1 stop

7:19 pm - 7:40 am

BOI

BOS

10h 21m

1 stop

$300Delta

Fri, Aug 28 - Mon, Sep 14

4:52 pm - 11:44 pm

BOS

BOI

8h 52m

1 stop

8:25 pm - 6:09 am

BOI

BOS

7h 44m

1 stop

$323Alaska Airlines

Mon, Aug 31 - Mon, Sep 14

5:42 pm - 11:55 pm

BOS

BOI

8h 13m

1 stop

1:31 pm - 6:09 am

BOI

BOS

14h 38m

1 stop

$323Alaska Airlines

Wed, Sep 9 - Sat, Sep 19

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American Airlines flights from Boston to Idaho

Our best American Airlines deals on Boston to Idaho flight tickets

American Airlines

Aug 23

BOS7:10 amBoston Logan Intl

9h 19m

1 stop

BOI2:29 pmBoise Air Term. Gowen Fld

Aug 29

BOI2:58 pmBoise Air Term. Gowen Fld

7h 00m

1 stop

BOS11:58 pmBoston Logan Intl

$257

American Airlines

Aug 29

BOS8:27 amBoston Logan Intl

7h 35m

1 stop

BOI2:02 pmBoise Air Term. Gowen Fld

Aug 31

BOI12:12 pmBoise Air Term. Gowen Fld

7h 54m

1 stop

BOS10:06 pmBoston Logan Intl

$290

American Airlines

Aug 17

BOS5:51 amBoston Logan Intl

10h 08m

1 stop

BOI1:59 pmBoise Air Term. Gowen Fld

Aug 22

BOI2:58 pmBoise Air Term. Gowen Fld

7h 00m

1 stop

BOS11:58 pmBoston Logan Intl

$307

Alaska Airlines flights from Boston to Idaho

Our best Alaska Airlines deals on Boston to Idaho flight tickets

Alaska Airlines

Aug 21

BOS7:59 pmBoston Logan Intl

15h 53m

1 stop

BOI9:52 amBoise Air Term. Gowen Fld

Sep 5

BOI1:32 pmBoise Air Term. Gowen Fld

14h 37m

1 stop

BOS6:09 amBoston Logan Intl

$340

Alaska Airlines

Aug 27

BOS4:52 pmBoston Logan Intl

8h 52m

1 stop

BOI11:44 pmBoise Air Term. Gowen Fld

Sep 11

BOI8:25 pmBoise Air Term. Gowen Fld

7h 44m

1 stop

BOS6:09 amBoston Logan Intl

$343

Alaska Airlines

Sep 17

BOS7:12 amBoston Logan Intl

10h 18m

1 stop

BOI3:30 pmBoise Air Term. Gowen Fld

Oct 1

BOI8:25 pmBoise Air Term. Gowen Fld

7h 44m

1 stop

BOS6:09 amBoston Logan Intl

$344

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Fri 8/21

11:15 am-8:40 pm

1 stop11h 25m

Boise Air Term. Gowen Fld

Sat 8/29

1:50 pm-12:25 am

1 stop8h 35m

$257

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Sun 8/23

7:10 am-2:29 pm

1 stop9h 19m

Boise Air Term. Gowen Fld

Sat 8/29

2:58 pm-11:58 pm

1 stop7h 00m

$257

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Fri 8/21

3:25 pm-10:35 pm

2 stops9h 10m

Boise Air Term. Gowen Fld

Sat 8/29

1:50 pm-12:25 am

1 stop8h 35m

$262

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 8/20

7:45 am-3:18 pm

1 stop9h 33m

Boise Air Term. Gowen Fld

Fri 8/28

12:23 pm-12:17 am

1 stop9h 54m

$267

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Thu 8/20

6:30 am-2:09 pm

1 stop10h 39m

Spokane

Tue 8/25

5:40 am-5:45 pm

1 stop9h 05m

$277

Quickest round-trip

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 8/26

3:10 pm-8:46 pm

1 stop8h 36m

Spokane

Sat 8/29

1:37 pm-11:50 pm

1 stop7h 13m

$297

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Tue 8/25

6:00 am-11:39 am

1 stop8h 39m

Spokane

Sat 8/29

1:37 pm-11:50 pm

1 stop7h 13m

$297

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Fri 8/28

7:45 am-3:18 pm

1 stop9h 33m

Boise Air Term. Gowen Fld

Mon 9/14

7:19 pm-7:40 am

1 stop10h 21m

$300

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Mon 8/31

4:52 pm-11:44 pm

1 stop8h 52m

Boise Air Term. Gowen Fld

Mon 9/14

8:25 pm-6:09 am

1 stop7h 44m

$323

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Wed 9/9

5:42 pm-11:55 pm

1 stop8h 13m

Boise Air Term. Gowen Fld

Sat 9/19

1:31 pm-6:09 am

1 stop14h 38m

$323

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 Boston 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, May is the cheapest month to fly from Boston to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $424. If you don’t want to visit Idaho in May, then you should wait until November to fly from Boston, when ticket prices are also cheap, with an average price of $445.

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

You are more likely to see cheaper flights to Idaho from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $488 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Boston for as low as $313 on momondo.

Can stopping save me money on Boston to Idaho flights?

You could potentially save up to 68% on your flight if you consider stops on a Boston to Idaho flight.

Cheap Boston to Idaho flight deals and tips

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

Fastest flight time	6h 59m
Direct flights	None

The fastest flight from Boston to Idaho takes 6h 59m

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

Search flight deals

Frequently asked questions about flying from Boston to Idaho

When did momondo last update prices for flights from Boston Logan Intl Airport to Idaho?
Prices for flights from Boston Logan Intl Airport to Idaho are refreshed on a daily basis.
How many operators does momondo search for flights from Boston Logan Intl Airport to Idaho?
The number of operators available for flights from Boston Logan Intl Airport to Idaho is 5 as of July 2026.
How old do you have to be to fly from Boston Logan Intl Airport to Idaho?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Boston to Idaho

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $277	Free Cancellation	Rating 7.8 8,485 reviews	Search Delta flights
American Airlines	PriceFrom $281	Free Cancellation	Rating 7.1 11,839 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $284	Free Cancellation	Rating 7.9 12,728 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $306	Free Cancellation	Rating 8.0 4,228 reviews	Search Southwest flights
United Airlines	PriceFrom $369	Free Cancellation	Rating 7.4 10,052 reviews	Search United Airlines flights

Why use momondo?

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

Finding the right flight to Idaho from Boston 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 Boston to Idaho with flexible booking policies on momondo?

Flights from Boston to Idaho with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boston to Idaho?

Once all potential Boston to Idaho flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Boston to Idaho now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho and let you know when they change.