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Idaho

$125+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BOI
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Find 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 November 20, 2025.

This Delta deal was found by Cheapflights users on 11/18. 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.
Sat 12/138:05 amBOS - BOI
1 stop8h 13mDelta
Tue 12/165:35 amBOI - BOS
1 stop6h 15mDelta
Deal found 11/18$265
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Sat 12/67:15 amBOS - GEG
1 stop11h 01mUnited Airlines
Wed 12/105:25 amGEG - BOS
1 stop7h 17mUnited Airlines
Deal found 11/19$283
This Delta deal was found by Cheapflights users on 11/18. 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.
Tue 12/96:24 pmBOS - BOI
1 stop7h 45mDelta
Thu 12/115:35 amBOI - BOS
1 stop9h 43mDelta
Deal found 11/18$301
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/95:21 amBOS - JAC
1 stop8h 53mAmerican Airlines
Sat 12/131:04 pmJAC - BOS
1 stop7h 56mAmerican Airlines
Deal found 11/19$309
This American Airlines deal was found by Cheapflights users on 11/17. 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 12/95:21 amBOS - BOI
1 stop9h 06mAmerican Airlines
Tue 12/161:57 pmBOI - BOS
1 stop8h 16mAmerican Airlines
Deal found 11/17$318
This Delta deal was found by Cheapflights users on 11/19. 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.
Tue 12/99:15 amBOS - JAC
2 stops14h 14mDelta
Sat 12/1312:55 pmJAC - BOS
1 stop8h 46mDelta
Deal found 11/19$318
This United Airlines deal was found by Cheapflights users on 11/18. 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.
Sat 12/68:00 amBOS - BOI
1 stop10h 03mUnited Airlines
Sat 12/132:49 pmBOI - BOS
1 stop6h 47mUnited Airlines
Deal found 11/18$330
This Delta deal was found by Cheapflights users on 11/19. 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.
Thu 12/116:55 pmBOS - GEG
1 stop8h 16mDelta
Mon 1/127:25 pmGEG - BOS
1 stop8h 25mDelta
Deal found 11/19$331
This Delta deal was found by Cheapflights users on 11/18. 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.
Thu 12/1111:25 amBOS - JAC
2 stops12h 04mDelta
Fri 12/197:00 amJAC - BOS
2 stops11h 04mDelta
Deal found 11/18$333
This Delta deal was found by Cheapflights users on 11/19. 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.
Thu 12/411:25 amBOS - JAC
2 stops12h 04mDelta
Mon 12/812:55 pmJAC - BOS
1 stop8h 46mDelta
Deal found 11/19$334
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Fri 12/510:30 amBOS - JAC
2 stops12h 07mUnited Airlines
Mon 12/87:00 amJAC - BOS
2 stops9h 48mUnited Airlines
Deal found 11/20$339
This Delta deal was found by Cheapflights users on 11/19. 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.
Sun 12/148:05 amBOS - BOI
1 stop8h 13mDelta
Wed 12/175:35 amBOI - BOS
1 stop9h 43mDelta
Deal found 11/19$340

Cheap flight deals from Boston to Idaho

Keep the following information in mind while searching for Boston to Idaho flight deals. Data was last updated November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

One-way from

$125
(Delta)

Popular in

December

Cheapest in

January

Average price

$527
Provider with most accurate pricing for Boston Logan Intl-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Boise Air Term. Gowen Fld flights.
Search Deals
From Boston Logan Intl to Idaho
Search Deals
One-way flight from Boston Logan Intl to Idaho
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 20, 2025.
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 1/28

4:25 pm-11:50 pm

1 stop10h 25m

Spokane

Wed 2/4

1:15 pm-11:56 pm

1 stop7h 41m

$249

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Sat 1/10

6:10 am-12:07 pm

1 stop8h 57m

Spokane

Sat 1/17

5:20 am-4:09 pm

1 stop7h 49m

$253

BostonHailey

BOS - SUN

BOSSUN

Boston Logan Intl

Sat 2/7

10:56 am-9:31 pm

1 stop12h 35m

Hailey Sun Valley-Friedman

Fri 2/13

2:32 pm-11:44 pm

1 stop7h 12m

$268

BostonJackson

BOS - JAC

BOSJAC

Boston Logan Intl

Mon 2/2

6:00 am-1:02 pm

1 stop9h 02m

Jackson Hole

Fri 2/6

5:36 pm-6:25 am

1 stop10h 49m

$289

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 1/28

7:15 am-3:00 pm

1 stop10h 45m

Spokane

Thu 2/5

7:25 pm-6:50 am

1 stop8h 25m

$290

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Sat 1/31

3:08 pm-7:54 pm

1 stop7h 46m

Spokane

Thu 2/5

5:05 am-4:09 pm

1 stop8h 04m

$290

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 2/10

3:05 pm-8:55 pm

1 stop7h 50m

Boise Air Term. Gowen Fld

Sat 2/14

5:20 am-2:05 pm

1 stop6h 45m

$292

BostonJackson

BOS - JAC

BOSJAC

Boston Logan Intl

Mon 2/2

6:00 am-11:22 am

1 stop7h 22m

Jackson Hole

Thu 2/5

7:00 am-9:52 pm

2 stops12h 52m

$294

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Fri 1/30

7:30 am-9:20 pm

1 stop16h 50m

Spokane

Wed 2/4

5:05 am-4:09 pm

1 stop8h 04m

$296

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Tue 3/10

7:00 am-12:29 pm

1 stop8h 29m

Spokane

Wed 3/11

8:29 pm-6:54 am

1 stop7h 25m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

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.

What is the cheapest time of day to fly from BOS to ID?

Find hourly flight availability from Boston to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2025.

When flying from Boston to Idaho, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 22% versus a flight in the afternoon.

How much does it cost to fly round-trip from Boston to Idaho?

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 November 20, 2025.
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.
Alaska Airlines
8.0
Very good
11,326 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Alaska Airlines
8.0
Very good
11,326 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Southwest
8.0
Very good
4,251 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Delta
7.9
Good
8,002 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
United Airlines
7.4
Good
9,028 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
American Airlines
7.2
Good
11,047 reviews
Alaska Airlines
8.0
Very good
11,326 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.

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 9h 02m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. The distance from Boston to Idaho is about 1989 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 $125. American Airlines flights start at $127 while deals on United Airlines start at $127 one-way.

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

    While some choose either Boston Logan Intl - Boise Air Term. Gowen Fld or Boston Logan Intl - Spokane, Boston Logan Intl - Jackson Hole is the most popular route 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.
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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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$519FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$264Average$502FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$296Average$447FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$325Average$698FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$370Average$496FlexibilityNo cancel feeOn-time63%

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