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Idaho

$142+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BOI
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
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 julio 3, 2025.

Round-trip from

$285
(Delta)

One-way from

$142
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$487
From Boston Logan Intl to Idaho
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One-way flight from Boston Logan Intl to Idaho
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 julio 3, 2025.

This Delta deal was found by Cheapflights users on 7/2. 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.
sáb. 9/66:50 amBOS - BOI
1 stop10h 13mDelta
sáb. 9/131:00 pmBOI - BOS
1 stop8h 59mDelta
Deal found 7/2$285
This Delta deal was found by Cheapflights users on 7/1. 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.
mié. 10/296:30 amBOS - GEG
1 stop10h 38mDelta
sáb. 11/12:05 pmGEG - BOS
1 stop6h 40mDelta
Deal found 7/1$289
This American Airlines deal was found by Cheapflights users on 7/1. 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.
sáb. 8/305:55 amBOS - BOI
1 stop8h 51mAmerican Airlines
sáb. 9/66:35 amBOI - BOS
2 stops10h 14mAmerican Airlines
Deal found 7/1$290
This American Airlines deal was found by Cheapflights users on 7/1. 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.
sáb. 9/137:00 amBOS - GEG
1 stop8h 44mAmerican Airlines
sáb. 9/207:00 amGEG - BOS
2 stops9h 42mAmerican Airlines
Deal found 7/1$294
This Southwest deal was found by Cheapflights users on 7/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/131:10 pmBOS - GEG
2 stops10h 50mSouthwest
sáb. 9/205:30 amGEG - BOS
2 stops12h 25mSouthwest
Deal found 7/1$299
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/189:20 amBOS - BOI
1 stop10h 51mAlaska Airlines
sáb. 8/237:17 pmBOI - BOS
1 stop10h 43mAlaska Airlines
Deal found 7/1$313
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/197:20 amBOS - GEG
1 stop8h 09mAlaska Airlines
jue. 8/217:00 amGEG - BOS
1 stop20h 25mAlaska Airlines
Deal found 7/2$316
This United Airlines deal was found by Cheapflights users on 7/1. 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.
mar. 7/296:07 amBOS - GEG
1 stop7h 49mUnited Airlines
vie. 8/16:25 pmGEG - BOS
1 stop8h 36mUnited Airlines
Deal found 7/1$328
This Delta deal was found by Cheapflights users on 7/1. 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.
lun. 8/186:10 amBOS - SUN
1 stop10h 25mDelta
sáb. 8/237:30 amSUN - BOS
2 stops8h 53mDelta
Deal found 7/1$346
This Mytrip deal was found by Cheapflights users on 7/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/203:37 pmBOS - BOI
3 stops27h 34mSpirit Airlines
dom. 8/246:06 pmBOI - BOS
2 stops15h 12mSpirit Airlines
Deal found 7/3$347
This Mytrip deal was found by Cheapflights users on 7/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/176:05 amBOS - GEG
3 stops30h 00mMultiple Airlines
jue. 8/2111:53 amGEG - BOS
2 stops18h 56mMultiple Airlines
Deal found 7/3$350
This Southwest deal was found by Cheapflights users on 7/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/202:50 pmBOS - BOI
2 stops10h 15mSouthwest
dom. 8/243:00 pmBOI - BOS
1 stop8h 10mSouthwest
Deal found 7/3$363

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 julio 3, 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

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

sáb. 9/6

6:50 am-3:03 pm

1 stop10h 13m

Boise Air Term. Gowen Fld

sáb. 9/13

1:00 pm-11:59 pm

1 stop8h 59m

$285

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

mar. 7/29

4:15 pm-11:28 pm

1 stop10h 13m

Spokane

mié. 8/6

12:28 pm-11:59 pm

1 stop8h 31m

$289

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

sáb. 8/30

5:55 am-12:46 pm

1 stop8h 51m

Boise Air Term. Gowen Fld

sáb. 9/6

6:35 am-6:49 pm

2 stops10h 14m

$290

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

sáb. 9/20

7:25 am-2:49 pm

1 stop10h 24m

Spokane

mar. 9/23

5:03 pm-6:25 am

1 stop10h 22m

$297

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

sáb. 9/13

1:10 pm-9:00 pm

2 stops10h 50m

Spokane

sáb. 9/20

5:30 am-8:55 pm

2 stops12h 25m

$299

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

lun. 8/18

9:20 am-6:11 pm

1 stop10h 51m

Boise Air Term. Gowen Fld

sáb. 8/23

7:17 pm-8:00 am

1 stop10h 43m

$313

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

mar. 8/19

7:20 am-12:29 pm

1 stop8h 09m

Spokane

jue. 8/21

7:00 am-6:25 am

1 stop20h 25m

$316

BostonSpokane

BOS - GEG

BOSGEG

Boston Logan Intl

mar. 7/29

6:07 am-10:56 am

1 stop7h 49m

Spokane

vie. 8/1

6:25 pm-6:01 am

1 stop8h 36m

$328

BostonHailey

BOS - SUN

BOSSUN

Boston Logan Intl

lun. 8/18

6:10 am-2:35 pm

1 stop10h 25m

Hailey Sun Valley-Friedman

sáb. 8/23

7:30 am-6:23 pm

2 stops8h 53m

$346

BostonBoise

BOS - BOI

BOSBOI

Boston Logan Intl

mié. 8/20

3:37 pm-5:11 pm

3 stops27h 34m

Boise Air Term. Gowen Fld

dom. 8/24

6:06 pm-11:18 am

2 stops15h 12m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 59 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, 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 $398). 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 julio 3, 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.

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 julio 3, 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
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $142. American Airlines flights start at $143 while deals on Southwest start at $148 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, 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 $398). 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 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$239Average$353FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$264Average$593FlexibilityNo cancel feeOn-time71%
DeltaCheapest$287Average$628FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$299Average$509FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$325Average$698FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$387Average$517FlexibilityNo cancel feeOn-time63%

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