HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho

$171+ 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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BOI
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Idaho with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Boston to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Idaho (USID). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$274
(FlightHub)

One-way from

$171
(Alaska Airlines)

Popular in

June

Cheapest in

January

Average price

$383
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. 16% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

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 30, 2025.

This FlightHub deal was found by Cheapflights users on 1/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/44:20 pmBOS - BOI
2 stops22h 12mSpirit Airlines
Wed 3/191:31 pmBOI - BOS
2 stops22h 29mSpirit Airlines
Deal found 1/29$274
This Delta deal was found by Cheapflights users on 1/30. 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 3/197:15 amBOS - BOI
1 stop10h 45mDelta
Wed 3/265:45 amBOI - BOS
1 stop8h 16mDelta
Deal found 1/30$323
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Sat 3/111:47 amBOS - BOI
2 stops12h 03mAmerican Airlines
Wed 3/51:56 pmBOI - BOS
1 stop7h 48mAmerican Airlines
Deal found 1/29$350
This Southwest deal was found by Cheapflights users on 1/29. 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.
Sat 3/12:40 pmBOS - BOI
2 stops11h 15mSouthwest
Wed 3/55:15 amBOI - BOS
2 stops10h 05mSouthwest
Deal found 1/29$365
This Delta deal was found by Cheapflights users on 1/29. 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 2/267:05 pmBOS - GEG
1 stop7h 58mDelta
Sun 3/25:00 amGEG - BOS
1 stop7h 59mDelta
Deal found 1/29$380
This Southwest deal was found by Cheapflights users on 1/28. 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.
Fri 4/251:15 pmBOS - GEG
2 stops12h 45mSouthwest
Wed 4/3012:55 pmGEG - BOS
1 stop7h 15mSouthwest
Deal found 1/28$385
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/206:24 pmBOS - IDA
1 stop30h 12mAlaska Airlines
Tue 2/254:07 pmIDA - BOS
1 stop29h 52mAlaska Airlines
Deal found 1/30$392
This Expedia deal was found by Cheapflights users on 1/29. 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.
Thu 2/206:00 amBOS - BOI
2 stops14h 46mMultiple Airlines
Sun 2/239:24 pmBOI - BOS
1 stop8h 20mMultiple Airlines
Deal found 1/29$392
This United Airlines deal was found by Cheapflights users on 1/28. 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 4/237:10 amBOS - GEG
1 stop10h 57mUnited Airlines
Mon 4/283:25 pmGEG - BOS
2 stops11h 33mUnited Airlines
Deal found 1/28$393
This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2411:34 amBOS - BOI
1 stop8h 22mSun Country Air
Sun 7/276:55 pmBOI - BOS
1 stop13h 42mSun Country Air
Deal found 1/29$400
This Delta deal was found by Cheapflights users on 1/29. 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 2/277:10 amBOS - JAC
2 stops13h 52mDelta
Wed 3/51:10 pmJAC - BOS
1 stop9h 09mDelta
Deal found 1/29$411
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/287:59 pmBOS - BOI
2 stops19h 52mAlaska Airlines
Fri 3/78:59 pmBOI - BOS
1 stop8h 45mAlaska Airlines
Deal found 1/30$411

Find flights from Boston to Idaho within your budget

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 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Tue 3/4

4:20 pm-12:32 pm

2 stops22h 12m

Boise Air Term. Gowen Fld

Wed 3/19

1:31 pm-2:00 pm

2 stops22h 29m

$274

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Wed 3/19

7:15 am-4:00 pm

1 stop10h 45m

Boise Air Term. Gowen Fld

Wed 3/26

5:45 am-4:01 pm

1 stop8h 16m

$323

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Sat 3/1

11:47 am-9:50 pm

2 stops12h 03m

Boise Air Term. Gowen Fld

Wed 3/5

1:56 pm-11:44 pm

1 stop7h 48m

$350

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Sat 3/1

2:40 pm-11:55 pm

2 stops11h 15m

Boise Air Term. Gowen Fld

Wed 3/5

5:15 am-5:20 pm

2 stops10h 05m

$365

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 2/26

6:24 pm-11:44 pm

1 stop8h 20m

Spokane

Sun 3/2

8:43 pm-7:44 am

1 stop8h 01m

$379

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 2/26

7:05 pm-12:03 am

1 stop7h 58m

Spokane

Sun 3/2

5:00 am-3:59 pm

1 stop7h 59m

$380

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Fri 4/25

1:15 pm-11:00 pm

2 stops12h 45m

Spokane

Wed 4/30

12:55 pm-11:10 pm

1 stop7h 15m

$385

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

Thu 2/20

6:00 am-6:46 pm

2 stops14h 46m

Boise Air Term. Gowen Fld

Sun 2/23

9:24 pm-7:44 am

1 stop8h 20m

$392

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 2/20

6:24 pm-10:36 pm

1 stop30h 12m

Idaho Falls Fanning Field

Tue 2/25

4:07 pm-11:59 pm

1 stop29h 52m

$392

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

Wed 4/23

7:10 am-3:07 pm

1 stop10h 57m

Spokane

Mon 4/28

3:25 pm-5:58 am

2 stops11h 33m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 57 results
1
2
3
...
6

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.

Travel insights for flights from Boston to Idaho

Get recent, data-driven insights about flights from Boston to Idaho including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Boston to Idaho (average of $314). Flying from Boston to Idaho in June is currently the most expensive (average of $436). 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 January 30, 2025.

When flying from Boston to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 30, 2025.
Read through reviews of airlines operating flights from Boston to Idaho, such as Southwest, Alaska Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,585 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,686 reviews
Southwest
8.1
Very good
4,585 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,450 reviews
Southwest
8.1
Very good
4,585 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,906 reviews
Southwest
8.1
Very good
4,585 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,585 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Crew

8.7

Overall

8.1

Food

7.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $171. Delta flights start at $172 while deals on American Airlines start at $179 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 - Hailey Sun Valley-Friedman, 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, October is the cheapest month in which you can book a flight from Boston to Idaho (average of $314). Flying from Boston to Idaho in June is currently the most expensive (average of $436). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Fort Lauderdale flights
Boston to Miami flights
Boston to Orlando flights
Boston to Las Vegas flights
Boston to O'Hare Intl flights
Boston to Dallas/Fort Worth flights
Boston to Denver flights
Boston to West Palm Beach flights
Boston to Sky Harbor Intl flights
Boston to Los Angeles flights
Boston to Tampa flights
Boston to Dulles Intl flights
Hartford to Orlando flights
Boston to Seattle flights
Boston to Fort Myers flights
Boston to Salt Lake City flights
Boston to Hobby flights
Boston to Reagan-National flights
Boston to Charlotte flights
Boston to Nashville flights
Boston to New Orleans flights
Boston to Austin flights
Boston to Charleston flights
Boston to Newark flights
Boston to San Diego flights
Boston to Philadelphia flights
Boston to LaGuardia flights
Boston to San Francisco flights
Boston to Baltimore flights
Boston to George Bush Intcntl flights
Boston to Atlanta flights
Hartford to Fort Lauderdale flights
Boston to Raleigh flights
Boston to John F Kennedy Intl flights
Hartford to Las Vegas flights
Hartford to Tampa flights
Hartford to West Palm Beach flights
Hartford to Denver flights
Boston to Savannah flights
Boston to Jacksonville flights
Boston to Midway flights
Hartford to O'Hare Intl flights
Boston to Sarasota flights
Boston to Minneapolis flights
Boston to Key West flights
Boston to Honolulu flights
Boston to Columbus flights
Boston to Pittsburgh flights
Hartford to Atlanta flights
Boston to Myrtle Beach flights

Top 6 airlines flying from Boston to Idaho

Discover the top 6 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$209Average$348FlexibilityNo cancel feeOn-time65%
DeltaCheapest$321Average$749FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$327Average$642FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$330Average$736FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$352Average$646FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$461Average$573FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.