Idaho

$119+ Cheap flights from Boston (BOS) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BOI
Mar 5 — Mar 121
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Cheap flight deals from Boston to Idaho

Cheapest flights from Boston to Idaho
Explore the most affordable flight options available from Boston to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:36 pm
BOS
-
GEG
1 stop9h 36m
American Airlines
Wed 3/116:00 am
GEG
-
BOS
1 stop8h 14m
American Airlines
Deal found 2/1$257
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/177:55 am
BOS
-
BOI
1 stop10h 54m
United Airlines
Tue 3/245:00 am
BOI
-
BOS
1 stop6h 42m
United Airlines
Deal found 2/2$257
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/229:30 am
BOS
-
GEG
2 stops12h 21m
United Airlines
Tue 4/281:43 pm
GEG
-
BOS
1 stop7h 16m
United Airlines
Deal found 2/2$262
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/43:09 pm
BOS
-
GEG
1 stop9h 08m
United Airlines
Wed 3/116:37 pm
GEG
-
BOS
2 stops10h 08m
United Airlines
Deal found 2/1$284
This Expedia deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/237:00 am
BOS
-
SUN
1 stop13h 22m
Alaska Airlines
Wed 2/257:04 pm
SUN
-
BOS
1 stop9h 50m
Alaska Airlines
Deal found 2/3$289
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:50 am
BOS
-
BOI
1 stop10h 15m
Delta
Tue 3/247:30 pm
BOI
-
BOS
1 stop9h 20m
Delta
Deal found 2/2$293
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:30 am
BOS
-
GEG
1 stop8h 14m
American Airlines
Mon 3/23:10 pm
GEG
-
BOS
1 stop11h 25m
American Airlines
Deal found 2/1$297
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:47 pm
BOS
-
BOI
1 stop8h 36m
United Airlines
Thu 2/261:44 pm
BOI
-
BOS
1 stop9h 05m
United Airlines
Deal found 2/2$297
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:24 pm
BOS
-
BOI
1 stop17h 16m
Alaska Airlines
Tue 3/104:30 pm
BOI
-
BOS
2 stops12h 24m
Alaska Airlines
Deal found 2/2$315
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:50 pm
BOS
-
GEG
1 stop8h 12m
Delta
Fri 3/132:15 pm
GEG
-
BOS
1 stop6h 34m
Delta
Deal found 2/1$322
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/241:00 pm
BOS
-
BOI
2 stops11h 22m
American Airlines
Thu 2/266:33 pm
BOI
-
BOS
1 stop9h 02m
American Airlines
Deal found 2/2$322
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:07 pm
BOS
-
GEG
2 stops11h 26m
American Airlines
Tue 4/286:00 am
GEG
-
BOS
2 stops10h 31m
American Airlines
Deal found 2/2$324

Find flight deals from Boston to Idaho

Keep the following information in mind while searching for Boston to Idaho flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(American Airlines)

One-way from

$119
(Alaska Airlines)

Popular in

December

Cheapest in

July

Average price

$502
Provider with most accurate pricing for Boston Logan Intl-Boise Air Term. Gowen Fld flight deals.
Provider most trusted by Cheapflights users for Boston Logan Intl-Boise Air Term. Gowen Fld flights.
From Boston Logan Intl to Idaho
One-way flight from Boston Logan Intl to Idaho
Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Boston to Idaho that are best for you.

Fly from

Boston

Fly to

Idaho

Route

Depart

Return

Price

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 4/22

11:00 am-6:51 pm

1 stop10h 51m

Spokane

Tue 4/28

1:43 pm-11:59 pm

1 stop7h 16m

$257

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Tue 4/28

8:05 am-1:03 pm

1 stop7h 58m

Spokane

Sat 5/2

5:10 pm-6:00 am

1 stop9h 50m

$257

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 3/4

3:09 pm-9:17 pm

1 stop9h 08m

Spokane

Wed 3/11

6:37 pm-7:45 am

2 stops10h 08m

$284

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Wed 3/18

8:05 am-2:05 pm

1 stop8h 00m

Boise Air Term. Gowen Fld

Wed 3/25

11:30 pm-10:04 am

1 stop8h 34m

$293

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 2/24

4:47 pm-11:23 pm

1 stop8h 36m

Boise Air Term. Gowen Fld

Thu 2/26

1:44 pm-12:49 am

1 stop9h 05m

$297

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Sat 3/28

5:35 am-11:37 am

1 stop9h 02m

Spokane

Mon 3/30

2:15 pm-11:49 pm

1 stop6h 34m

$322

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 3/11

6:50 pm-12:02 am

1 stop8h 12m

Spokane

Fri 3/13

2:15 pm-11:49 pm

1 stop6h 34m

$322

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 4/22

12:07 pm-8:33 pm

2 stops11h 26m

Spokane

Tue 4/28

6:00 am-7:31 pm

2 stops10h 31m

$324

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Fri 3/13

2:59 pm-9:18 pm

1 stop9h 19m

Spokane

Wed 3/18

6:37 pm-7:45 am

2 stops10h 08m

$327

BostonHailey

BOS - SUN

BOSSUN

Boston Logan Intl

Thu 4/2

6:52 am-12:54 pm

1 stop8h 02m

Hailey Sun Valley-Friedman

Sun 4/5

1:29 pm-12:05 am

1 stop8h 36m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 60 results
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Best time to book a flight from Boston to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Idaho

What is the cheapest month to book a flight from Boston to Idaho?

Currently, April is the cheapest month in which you can book a flight from Boston to Idaho (average of $204). Flying from Boston to Idaho in June is currently the most expensive (average of $320). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated February 3, 2026.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Boston to Idaho. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Boston to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Boston to Idaho?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to Idaho.

  • How long is the flight from Boston to Idaho?

    There are many flights that can get you from Boston to Idaho in 7h 58m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. The distance from Boston to Idaho is about 2266 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Boston to Idaho one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $129. Alaska Airlines flights start at $154 while deals on American Airlines start at $157 one-way.

  • What are the most popular routes from Boston to Idaho?

  • Can I find deals for flights from Boston to Idaho that include hotel bookings?

    Yes. In addition to deals on Boston to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Idaho.

  • Can I find deals for business class flights from Boston to Idaho?

    Yes. Cheapflights offers flight deals from Boston to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Idaho?

    Currently, April is the cheapest month in which you can book a flight from Boston to Idaho (average of $204). Flying from Boston to Idaho in June is currently the most expensive (average of $320). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Boston to Idaho

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Boston to Idaho

Discover the top 5 airlines that operate flights from Boston to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$239Average$493FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$264Average$487FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$296Average$589FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$369Average$629FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$370Average$466FlexibilityNo cancel feeOn-time63%

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