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Idaho Falls

$205+ Cheap flights from Boston to Idaho Falls (BOS - IDA)

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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — IDA
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Cheap flight deals from Boston to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Idaho Falls (IDA). 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 November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$420
(Orbitz)

One-way from

$205
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$445
Provider with most accurate pricing for Boston Logan Intl-Idaho Falls Fanning Field flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Idaho Falls Fanning Field flights.
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From Boston Logan Intl to Idaho Falls Fanning Field
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One-way flight from Boston Logan Intl to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 19% potential increase in price ($142 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Boston to Idaho Falls

Cheapest flights from Boston to Idaho Falls
Explore the most affordable flight options available from Boston to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:45 amBOS - IDA
3 stops33h 31mMultiple Airlines
Mon 12/88:16 pmIDA - BOS
3 stops25h 40mMultiple Airlines
Deal found 11/19$380
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:10 amBOS - IDA
1 stop8h 27mDelta
Sun 12/146:00 amIDA - BOS
1 stop8h 13mDelta
Deal found 11/20$436
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:08 amBOS - IDA
3 stops28h 08mMultiple Airlines
Sun 12/144:39 pmIDA - BOS
3 stops29h 17mMultiple Airlines
Deal found 11/20$458
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.
Sun 12/76:10 amBOS - IDA
1 stop8h 27mDelta
Wed 12/107:06 pmIDA - BOS
1 stop9h 14mDelta
Deal found 11/18$461
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:01 amBOS - IDA
2 stops15h 35mAmerican Airlines
Wed 12/101:58 pmIDA - BOS
2 stops15h 23mAmerican Airlines
Deal found 11/18$476
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:24 pmBOS - IDA
2 stops26h 03mAlaska Airlines
Sun 12/145:07 pmIDA - BOS
2 stops20h 30mAlaska Airlines
Deal found 11/20$481
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:00 amBOS - IDA
1 stop9h 27mHawaiian Airlines
Sun 12/145:07 pmIDA - BOS
1 stop12h 22mHawaiian Airlines
Deal found 11/20$488
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:59 pmBOS - IDA
1 stop23h 28mAlaska Airlines
Mon 12/85:07 pmIDA - BOS
1 stop12h 22mAlaska Airlines
Deal found 11/19$500
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.
Thu 12/49:30 amBOS - IDA
2 stops13h 42mUnited Airlines
Mon 12/82:45 pmIDA - BOS
1 stop6h 49mUnited Airlines
Deal found 11/19$506
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.
Thu 12/412:01 pmBOS - IDA
2 stops12h 35mAmerican Airlines
Mon 12/81:58 pmIDA - BOS
2 stops15h 23mAmerican Airlines
Deal found 11/19$534
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.
Mon 12/2211:40 amBOS - IDA
1 stop11h 34mUnited Airlines
Sun 1/42:30 pmIDA - BOS
1 stop7h 05mUnited Airlines
Deal found 11/19$540

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Idaho Falls 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 Falls that are best for you.

Fly from

Boston

Fly to

Idaho Falls

Route

Depart

Return

Price

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 1/1

5:20 am-3:22 pm

2 stops12h 02m

Idaho Falls Fanning Field

Tue 1/6

2:40 pm-11:46 pm

1 stop7h 06m

$426

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 1/6

10:30 am-10:36 pm

2 stops14h 06m

Idaho Falls Fanning Field

Sun 1/11

7:20 am-10:22 pm

2 stops13h 02m

$446

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 1/6

7:30 am-12:07 am

1 stop18h 37m

Idaho Falls Fanning Field

Sun 1/11

9:00 am-11:54 pm

1 stop12h 54m

$470

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sun 12/7

9:01 am-10:36 pm

2 stops15h 35m

Idaho Falls Fanning Field

Wed 12/10

1:58 pm-7:21 am

2 stops15h 23m

$476

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 2/11

4:25 pm-10:57 pm

1 stop8h 32m

Idaho Falls Fanning Field

Mon 2/16

6:28 pm-6:00 am

1 stop9h 32m

$479

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 4/1

6:00 am-12:31 pm

1 stop8h 31m

Idaho Falls Fanning Field

Sun 4/5

6:45 pm-6:13 am

1 stop9h 28m

$494

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 2/12

6:24 pm-11:24 pm

1 stop31h 00m

Idaho Falls Fanning Field

Tue 2/17

9:00 am-11:59 pm

1 stop12h 59m

$507

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 4/1

7:10 am-1:24 pm

1 stop8h 14m

Idaho Falls Fanning Field

Sun 4/5

2:35 pm-11:53 pm

1 stop7h 18m

$536

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 2/11

4:20 pm-11:24 pm

2 stops33h 04m

Idaho Falls Fanning Field

Mon 2/16

9:00 am-11:59 pm

1 stop12h 59m

$562

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 1/13

3:43 pm-12:44 pm

3 stops47h 01m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 18 results
1
2

Compare providers for flights from Boston to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Idaho Falls in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Idaho Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Idaho Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Idaho Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Idaho Falls

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

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

Currently, March is the cheapest month in which you can book a flight from Boston to Idaho Falls (average of $299). Flying from Boston to Idaho Falls in July is currently the most expensive (average of $433). 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 IDA?

Find hourly flight availability from Boston to Idaho Falls. 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.

One of the essential ways to save on airfare from Boston to Idaho Falls is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 33% on airfare.

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Falls. Reviews last updated November 20, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Boston to Idaho Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,004 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,004 reviews
Delta
7.9
Good
8,004 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,025 reviews
Delta
7.9
Good
8,004 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,046 reviews
Delta
7.9
Good
8,004 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Boston to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Idaho Falls?

    A quick flight from Boston to Idaho Falls can take about 12h 02m. United Airlines provides one of the quickest options available for as low as $426. There are 2056 mi between Boston and Idaho Falls. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Boston to Idaho Falls round-trip?

    Flying on Delta is currently your cheapest option to Idaho Falls, with prices starting at $346. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $400 and $528, respectively. These flights start at 42% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $211. Delta flights start at $216 while deals on American Airlines start at $406 one-way.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Boston to Idaho Falls (average of $299). Flying from Boston to Idaho Falls in July is currently the most expensive (average of $433). 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 Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Top 3 airlines flying from Boston to Idaho Falls

Discover the top 3 airlines that operate flights from Boston to Idaho Falls. 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$346Average$482FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$400Average$494FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$528Average$699FlexibilityNo cancel feeOn-time69%

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