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Idaho Falls

$226+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — IDA
Nov 4 — Nov 111
Tue 11/4
Tue 11/11
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 October 5, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$400
(Delta)

One-way from

$226
(Delta)

Popular in

July

Cheapest in

September

Average price

$714
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. 20% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 5, 2025.

This American Airlines deal was found by Cheapflights users on 10/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:10 amBOS - IDA
1 stop18h 26mAmerican Airlines
Wed 12/107:15 amIDA - BOS
1 stop14h 18mAmerican Airlines
Deal found 10/3$419
This Delta deal was found by Cheapflights users on 10/4. 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 10/2810:12 amBOS - IDA
2 stops14h 03mDelta
Tue 11/46:53 pmIDA - BOS
1 stop9h 47mDelta
Deal found 10/4$426
This Alaska Airlines deal was found by Cheapflights users on 10/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:24 pmBOS - IDA
2 stops33h 35mAlaska Airlines
Thu 12/116:05 amIDA - BOS
1 stop9h 15mAlaska Airlines
Deal found 10/3$439
This Delta deal was found by Cheapflights users on 10/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:00 amBOS - IDA
2 stops10h 32mDelta
Tue 12/27:06 pmIDA - BOS
1 stop9h 12mDelta
Deal found 10/3$441
This American Airlines deal was found by Cheapflights users on 10/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:30 amBOS - IDA
2 stops16h 06mAmerican Airlines
Thu 12/117:15 amIDA - BOS
2 stops13h 37mAmerican Airlines
Deal found 10/3$456
This Alaska Airlines deal was found by Cheapflights users on 10/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amBOS - IDA
2 stops20h 07mAlaska Airlines
Wed 12/313:09 pmIDA - BOS
1 stop14h 39mAlaska Airlines
Deal found 10/3$553
This American Airlines deal was found by Cheapflights users on 10/5. 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 11/276:05 amBOS - IDA
1 stop11h 41mAmerican Airlines
Tue 12/27:00 amIDA - BOS
1 stop14h 35mAmerican Airlines
Deal found 10/5$561
This Alaska Airlines deal was found by Cheapflights users on 10/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amBOS - IDA
2 stops20h 07mAlaska Airlines
Sun 1/46:00 amIDA - BOS
1 stop16h 23mAlaska Airlines
Deal found 10/3$563

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 October 5, 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

Tue 3/3

6:00 am-12:31 pm

1 stop8h 31m

Idaho Falls Fanning Field

Wed 3/4

6:45 pm-6:13 am

1 stop9h 28m

$421

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 12/3

9:20 am-10:36 pm

2 stops15h 16m

Idaho Falls Fanning Field

Wed 12/10

7:15 am-12:15 am

2 stops15h 00m

$431

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 10/28

10:12 am-10:15 pm

2 stops14h 03m

Idaho Falls Fanning Field

Tue 11/4

6:53 pm-9:36 am

2 stops12h 43m

$431

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 11/27

8:00 am-4:32 pm

2 stops10h 32m

Idaho Falls Fanning Field

Tue 12/2

7:06 pm-6:18 am

1 stop9h 12m

$441

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 2/26

7:00 am-3:23 pm

1 stop10h 23m

Idaho Falls Fanning Field

Wed 3/4

4:00 pm-7:16 am

1 stop13h 16m

$466

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Mon 3/2

8:45 pm-10:21 pm

2 stops27h 36m

Idaho Falls Fanning Field

Wed 3/4

6:45 pm-6:13 am

1 stop9h 28m

$466

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 2/24

7:05 am-10:21 pm

2 stops17h 16m

Idaho Falls Fanning Field

Mon 3/9

6:45 pm-6:13 am

1 stop9h 28m

$467

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sun 11/2

5:15 am-11:33 am

1 stop8h 18m

$226

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sun 11/2

10:25 am-2:01 pm

2 stops29h 36m

$259

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sun 11/2

3:55 pm-2:01 pm

3 stops24h 06m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/3

Showing 1-10 of 13 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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Idaho Falls flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, October is the cheapest month in which you can book a flight from Boston to Idaho Falls (average of $380). Flying from Boston to Idaho Falls in December is currently the most expensive (average of $578). 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 October 5, 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 34% 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 October 5, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United 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.
Alaska Airlines
8.0
Very good
11,020 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,020 reviews
Alaska Airlines
8.0
Very good
11,020 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
8.0
Very good
7,970 reviews
Alaska Airlines
8.0
Very good
11,020 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,953 reviews
Alaska Airlines
8.0
Very good
11,020 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,041 reviews
Alaska Airlines
8.0
Very good
11,020 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 8h 31m. Delta provides one of the quickest options available for as low as $421. 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 46% 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 Delta, which is currently one of the cheapest options available, starting at $226. Allegiant Air flights start at $259 while deals on United Airlines start at $367 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, October is the cheapest month in which you can book a flight from Boston to Idaho Falls (average of $380). Flying from Boston to Idaho Falls in December is currently the most expensive (average of $578). 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 October 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$346Average$482FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$400Average$519FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$528Average$700FlexibilityNo cancel feeOn-time69%

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