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$143+ Cheap flights from Idaho to Boston (BOS)

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BOS
Jul 19 — Jul 261
Sun 7/19
Sun 7/26
1 adult, Economy
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Cheap flight deals from Idaho to Boston

Cheapest flights from Idaho to Boston
Explore the most affordable flight options available from Idaho to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 19, 2026.

This Delta deal was found by Cheapflights users on 6/16. 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 9/96:46 pm
BOI
-
BOS
1 stop9h 44m
Delta
Mon 9/147:05 am
BOS
-
BOI
1 stop8h 33m
Delta
Deal found 6/16$285
This Delta deal was found by Cheapflights users on 6/15. 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 10/248:40 am
BOI
-
BOS
1 stop9h 43m
Delta
Sun 11/15:40 am
BOS
-
BOI
1 stop9h 02m
Delta
Deal found 6/15$290
This Delta deal was found by Cheapflights users on 6/16. 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 10/201:00 pm
GEG
-
BOS
1 stop8h 20m
Delta
Sat 10/247:05 am
BOS
-
GEG
1 stop8h 57m
Delta
Deal found 6/16$293
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:37 pm
GEG
-
BOS
1 stop7h 17m
United Airlines
Tue 9/112:41 pm
BOS
-
GEG
2 stops11h 05m
United Airlines
Deal found 6/17$298
This Southwest deal was found by Cheapflights users on 6/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:35 pm
BOI
-
BOS
1 stop9h 30m
Southwest
Wed 9/233:20 pm
BOS
-
BOI
2 stops9h 50m
Southwest
Deal found 6/18$299
This American Airlines deal was found by Cheapflights users on 6/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/222:58 pm
BOI
-
BOS
1 stop7h 00m
American Airlines
Wed 8/266:30 am
BOS
-
BOI
1 stop8h 54m
American Airlines
Deal found 6/18$300
This Delta deal was found by Cheapflights users on 6/18. 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 10/132:35 pm
BOI
-
BOS
1 stop7h 45m
Delta
Tue 10/205:40 am
BOS
-
BOI
1 stop9h 02m
Delta
Deal found 6/18$303
This Southwest deal was found by Cheapflights users on 6/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:20 am
BOI
-
BOS
2 stops10h 30m
Southwest
Thu 10/295:00 am
BOS
-
BOI
1 stop12h 30m
Southwest
Deal found 6/18$311
This Southwest deal was found by Cheapflights users on 6/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:55 pm
BOI
-
BOS
1 stop7h 35m
Southwest
Sat 8/295:40 am
BOS
-
BOI
1 stop7h 15m
Southwest
Deal found 6/17$312
This American Airlines deal was found by Cheapflights users on 6/19. 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.
Thu 8/612:12 pm
BOI
-
BOS
1 stop9h 47m
American Airlines
Thu 8/135:51 am
BOS
-
BOI
1 stop10h 08m
American Airlines
Deal found 6/19$313
This United Airlines deal was found by Cheapflights users on 6/15. 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 8/211:37 pm
GEG
-
BOS
1 stop7h 17m
United Airlines
Tue 8/259:20 am
BOS
-
GEG
1 stop12h 31m
United Airlines
Deal found 6/15$314
This Delta deal was found by Cheapflights users on 6/16. 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 8/1710:56 pm
GEG
-
BOS
1 stop7h 43m
Delta
Tue 8/254:05 pm
BOS
-
GEG
1 stop10h 54m
Delta
Deal found 6/16$315

Find flight deals from Idaho to Boston

Keep the following information in mind while searching for Idaho to Boston flight deals. Data was last updated June 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$285
(Delta)

One-way from

$143
(Delta)

Popular in

April

Cheapest in

December

Average price

$503
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Boston Logan Intl flights.
Search Deals
From Idaho to Boston Logan Intl
Search Deals
One-way flight from Idaho to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($68 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 June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Boston 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 June 19, 2026.
Use the filters below to find and compare flights from Idaho to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBoston

BOI - BOS

BOIBOS

Boise Air Term. Gowen Fld

Mon 8/17

11:10 pm-9:39 am

1 stop8h 29m

Boston Logan Intl

Sat 8/29

11:05 am-7:00 pm

1 stop9h 55m

$285

BoiseBoston

BOI - BOS

BOIBOS

Boise Air Term. Gowen Fld

Wed 9/9

6:46 pm-6:30 am

1 stop9h 44m

Boston Logan Intl

Mon 9/14

7:05 am-1:38 pm

1 stop8h 33m

$285

SpokaneBoston

GEG - BOS

GEGBOS

Spokane

Thu 10/22

10:50 am-12:20 am

1 stop10h 30m

Boston Logan Intl

Mon 10/26

6:30 pm-11:42 pm

1 stop8h 12m

$293

SpokaneBoston

GEG - BOS

GEGBOS

Spokane

Thu 10/15

12:40 pm-12:58 am

1 stop9h 18m

Boston Logan Intl

Mon 10/26

7:05 am-2:45 pm

1 stop10h 40m

$293

SpokaneBoston

GEG - BOS

GEGBOS

Spokane

Thu 8/27

10:56 pm-9:39 am

1 stop7h 43m

Boston Logan Intl

Mon 8/31

11:29 am-5:00 pm

1 stop8h 31m

$293

SpokaneBoston

GEG - BOS

GEGBOS

Spokane

Fri 9/4

7:54 pm-7:35 am

1 stop8h 41m

Boston Logan Intl

Mon 9/14

4:05 pm-11:52 pm

1 stop10h 47m

$293

BoiseBoston

BOI - BOS

BOIBOS

Boise Air Term. Gowen Fld

Thu 9/17

7:20 pm-7:40 am

1 stop10h 20m

Boston Logan Intl

Mon 9/21

7:45 am-5:19 pm

1 stop11h 34m

$300
Quickest round-trip

SpokaneBoston

GEG - BOS

GEGBOS

Spokane

Mon 8/17

10:56 pm-9:39 am

1 stop7h 43m

Boston Logan Intl

Tue 8/25

8:15 am-12:57 pm

1 stop7h 42m

$315

SpokaneBoston

GEG - BOS

GEGBOS

Spokane

Fri 8/21

7:15 pm-6:30 am

1 stop8h 15m

Boston Logan Intl

Tue 8/25

8:15 am-12:57 pm

1 stop7h 42m

$315

BoiseBoston

BOI - BOS

BOIBOS

Boise Air Term. Gowen Fld

Mon 8/10

2:55 pm-12:30 am

1 stop7h 35m

Boston Logan Intl

Tue 8/18

9:05 am-7:45 pm

1 stop12h 40m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Idaho to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Idaho 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 Idaho to Boston

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

Currently, August is the cheapest month in which you can book a flight from Idaho to Boston (average of $114). Flying from Idaho to Boston in April is currently the most expensive (average of $354). 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.

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

How far ahead should I book a flight from Idaho to Boston?

The best time to book flights from Idaho to Boston is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Boston. 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 into for flights to Boston from Idaho?

    For a flight from Idaho to Boston, you will be flying into Logan Intl. Boston Logan Intl (BOS) is just 2.6 mi from the center of the city.

  • How long is the flight from Idaho to Boston?

    Departing from Idaho to Boston will take you 7h 29m. The distance between Idaho and Boston is about 2056 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $142. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from Idaho to Boston for a low price.

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

    The most popular route from Idaho to Boston is Spokane - Boston Logan Intl. You may also consider Boise Air Term. Gowen Fld - Boston Logan Intl or Jackson Hole - Boston Logan Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Boston 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 Idaho to Boston?

    Currently, August is the cheapest month in which you can book a flight from Idaho to Boston (average of $114). Flying from Idaho to Boston in April is currently the most expensive (average of $354). 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

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Waltham
Cambridge
Concord
Brockton
Watertown
Hampton Beach
Seekonk
Cranston
Warwick
Peabody
Auburn
York Beach
Chelsea
Londonderry
Dedham
Swansea
Old Orchard Beach
Lowell
Smithfield
Braintree

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Top 5 airlines flying from Idaho to Boston

Discover the top 5 airlines that operate flights from Idaho to Boston. 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 June 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$206Average$539FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$516FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$257Average$558FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$306Average$456FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$371Average$492FlexibilityNo cancel feeOn-time63%

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