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$98+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BOI
Feb 9 — Feb 161
Mon 2/9
Mon 2/16
1 adult, Economy
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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 January 10, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$215
(Southwest)

One-way from

$98
(American Airlines)

Popular in

December

Cheapest in

July

Average price

$436
Provider with most accurate pricing for Boston Logan Intl-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Boise Air Term. Gowen Fld flights.
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From Boston Logan Intl to Idaho
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One-way flight from Boston Logan Intl to Idaho
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Highest demand for flights based on searches. 2% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 10, 2026.

This Southwest deal was found by Cheapflights users on 1/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:00 amBOS - BOI
1 stop7h 30mSouthwest
Tue 3/103:15 pmBOI - BOS
1 stop6h 35mSouthwest
Deal found 1/8$215
This American Airlines deal was found by Cheapflights users on 1/7. 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.
Thu 2/59:45 amBOS - GEG
1 stop12h 04mAmerican Airlines
Tue 2/106:00 amGEG - BOS
2 stops10h 02mAmerican Airlines
Deal found 1/7$220
This American Airlines deal was found by Cheapflights users on 1/8. 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 3/186:30 amBOS - BOI
1 stop8h 30mAmerican Airlines
Wed 3/251:31 pmBOI - BOS
1 stop7h 30mAmerican Airlines
Deal found 1/8$230
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/57:00 amBOS - GEG
1 stop8h 44mAlaska Airlines
Tue 2/105:45 amGEG - BOS
1 stop7h 35mAlaska Airlines
Deal found 1/7$231
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/55:20 pmBOS - BOI
1 stop8h 38mAlaska Airlines
Mon 2/91:55 pmBOI - BOS
1 stop7h 59mAlaska Airlines
Deal found 1/7$234
This Delta deal was found by Cheapflights users on 1/9. 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.
Mon 3/166:45 pmBOS - GEG
1 stop8h 18mDelta
Thu 3/1911:30 amGEG - BOS
1 stop9h 29mDelta
Deal found 1/9$235
This American Airlines deal was found by Cheapflights users on 1/8. 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 3/186:30 amBOS - BOI
1 stop8h 30mAmerican Airlines
Tue 3/241:31 pmBOI - BOS
1 stop8h 34mAmerican Airlines
Deal found 1/8$247
This Southwest deal was found by Cheapflights users on 1/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/116:50 amBOS - BOI
1 stop10h 30mSouthwest
Mon 2/166:30 amBOI - BOS
1 stop10h 15mSouthwest
Deal found 1/7$249
This American Airlines deal was found by Cheapflights users on 1/8. 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.
Mon 4/277:00 pmBOS - BOI
1 stop19h 38mAmerican Airlines
Tue 5/51:29 pmBOI - BOS
1 stop8h 53mAmerican Airlines
Deal found 1/8$272
This United Airlines deal was found by Cheapflights users on 1/9. 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 1/313:15 pmBOS - SUN
1 stop8h 14mUnited Airlines
Sat 2/78:05 amSUN - BOS
1 stop9h 51mUnited Airlines
Deal found 1/9$273
This American Airlines deal was found by Cheapflights users on 1/8. 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.
Thu 2/59:45 amBOS - GEG
2 stops12h 04mAmerican Airlines
Thu 2/1212:25 pmGEG - BOS
1 stop8h 34mAmerican Airlines
Deal found 1/8$277
This Delta deal was found by Cheapflights users on 1/7. 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.
Mon 2/98:50 pmBOS - JAC
2 stops21h 34mDelta
Sat 2/141:05 pmJAC - BOS
2 stops17h 20mDelta
Deal found 1/7$278

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 January 10, 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

Mon 3/2

7:00 am-12:29 pm

1 stop8h 29m

Spokane

Mon 3/2

7:06 pm-6:54 am

1 stop8h 48m

$235

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Mon 3/16

6:45 pm-12:03 am

1 stop8h 18m

Spokane

Thu 3/19

11:30 am-11:59 pm

1 stop9h 29m

$235

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 2/19

12:45 pm-10:45 pm

1 stop12h 00m

Boise Air Term. Gowen Fld

Thu 2/26

7:15 pm-6:50 am

1 stop9h 35m

$235

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 2/5

7:00 am-3:10 pm

1 stop10h 10m

Boise Air Term. Gowen Fld

Mon 2/9

1:55 pm-11:54 pm

1 stop7h 59m

$235

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Wed 2/11

6:50 am-3:20 pm

1 stop10h 30m

Boise Air Term. Gowen Fld

Mon 2/16

6:30 am-6:45 pm

1 stop10h 15m

$249

BostonHailey

BOS - SUN

BOSSUN

Boston Logan Intl

Sat 1/31

10:30 am-9:29 pm

2 stops12h 59m

Hailey Sun Valley-Friedman

Sat 2/7

12:43 pm-11:49 pm

2 stops9h 06m

$284

BostonJackson

BOS - JAC

BOSJAC

Boston Logan Intl

Mon 2/9

8:50 pm-4:24 pm

2 stops21h 34m

Jackson Hole

Sat 2/14

1:05 pm-12:02 am

1 stop8h 57m

$285

BostonJackson

BOS - JAC

BOSJAC

Boston Logan Intl

Sat 2/7

12:30 pm-7:06 pm

1 stop8h 36m

Jackson Hole

Sat 2/14

1:05 pm-3:15 pm

2 stops24h 10m

$289

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Fri 3/6

5:44 pm-12:40 pm

1 stop20h 56m

Boise Air Term. Gowen Fld

Tue 3/10

6:00 pm-6:54 am

1 stop10h 54m

$293

BostonJackson

BOS - JAC

BOSJAC

Boston Logan Intl

Sun 2/1

4:20 pm-12:11 pm

1 stop21h 51m

Jackson Hole

Thu 2/5

12:51 pm-11:54 pm

1 stop9h 03m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

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 February is currently the most expensive (average of $325). 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 January 10, 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.
Alaska Airlines
8.0
Very good
11,681 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
11,681 reviews
Alaska Airlines
8.0
Very good
11,681 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Southwest
8.0
Very good
4,252 reviews
Alaska Airlines
8.0
Very good
11,681 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,038 reviews
Alaska Airlines
8.0
Very good
11,681 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,145 reviews
Alaska Airlines
8.0
Very good
11,681 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.2
Good
11,102 reviews
Alaska Airlines
8.0
Very good
11,681 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 8h 18m. Fly via Alaska Airlines, Delta, or Southwest 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?

    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 February is currently the most expensive (average of $325). 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.

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Alternative routes for Boston to Idaho

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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 January 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$256Average$544FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$281Average$509FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$296Average$567FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$370Average$469FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$388Average$695FlexibilityNo cancel feeOn-time69%

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