HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho Falls

$203+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — IDA
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Idaho Falls 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 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 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$393
(American Airlines)

One-way from

$203
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$445
Provider with most accurate pricing for Boston Logan Intl-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Idaho Falls Fanning Field flights.
Search Deals
From Boston Logan Intl to Idaho Falls Fanning Field
Search Deals
One-way flight from Boston Logan Intl to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($139 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 6, 2025.

This Delta deal was found by Cheapflights users on 11/6. 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 12/65:15 pmBOS - IDA
1 stop7h 22mDelta
Sat 12/137:06 pmIDA - BOS
1 stop9h 14mDelta
Deal found 11/6$451
This American Airlines deal was found by Cheapflights users on 11/5. 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 11/2012:25 pmBOS - IDA
1 stop12h 09mAmerican Airlines
Mon 11/247:10 amIDA - BOS
2 stops14h 31mAmerican Airlines
Deal found 11/5$506
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:15 amBOS - IDA
2 stops16h 04mDelta
Mon 11/246:00 amIDA - BOS
2 stops9h 08mDelta
Deal found 11/5$511
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:45 amBOS - IDA
3 stops35h 10mMultiple Airlines
Mon 11/249:43 pmIDA - BOS
3 stops24h 10mMultiple Airlines
Deal found 11/5$542
This Delta deal was found by Cheapflights users on 11/6. 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 11/278:15 amBOS - IDA
2 stops10h 17mDelta
Tue 12/27:06 pmIDA - BOS
1 stop9h 14mDelta
Deal found 11/6$575
This Delta deal was found by Cheapflights users on 11/6. 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.
Fri 12/126:10 amBOS - IDA
1 stop8h 27mDelta
Fri 12/197:06 pmIDA - BOS
1 stop9h 22mDelta
Deal found 11/6$585
This United Airlines deal was found by Cheapflights users on 11/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:55 pmBOS - IDA
1 stop16h 53mUnited Airlines
Mon 11/247:00 amIDA - BOS
2 stops14h 42mUnited Airlines
Deal found 11/4$594

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 6, 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

Sat 12/6

12:00 pm-10:37 pm

2 stops12h 37m

Idaho Falls Fanning Field

Sat 12/13

7:06 pm-6:20 am

1 stop9h 14m

$456

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 1/30

7:15 am-5:51 pm

2 stops12h 36m

Idaho Falls Fanning Field

Fri 2/6

6:35 pm-6:05 am

1 stop9h 30m

$457

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 1/31

12:55 pm-10:21 pm

2 stops11h 26m

Idaho Falls Fanning Field

Sat 2/7

5:25 am-8:31 pm

2 stops13h 06m

$461

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 1/31

7:00 am-6:18 pm

1 stop13h 18m

Idaho Falls Fanning Field

Sat 2/7

9:00 am-4:20 pm

1 stop29h 20m

$472

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 11/20

12:25 pm-10:34 pm

1 stop12h 09m

Idaho Falls Fanning Field

Mon 11/24

7:10 am-11:41 pm

2 stops14h 31m

$506

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 11/20

8:15 am-10:19 pm

2 stops16h 04m

Idaho Falls Fanning Field

Mon 11/24

6:00 am-5:08 pm

2 stops9h 08m

$511

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 1/30

3:15 pm-9:56 am

1 stop20h 41m

Idaho Falls Fanning Field

Fri 2/6

2:40 pm-11:46 pm

1 stop7h 06m

$518

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 11/20

5:45 am-2:55 pm

3 stops35h 10m

Idaho Falls Fanning Field

Mon 11/24

9:43 pm-11:53 pm

3 stops24h 10m

$542

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 12/12

6:10 am-12:37 pm

1 stop8h 27m

Idaho Falls Fanning Field

Fri 12/19

7:06 pm-6:28 am

1 stop9h 22m

$585

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 12/13

8:11 pm-3:36 pm

3 stops45h 25m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 14 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 $316). Flying from Boston to Idaho Falls in July is currently the most expensive (average of $439). 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 6, 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 6, 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
8,001 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

Entertainment

7.9

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
8,001 reviews
Delta
7.9
Good
8,001 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

Entertainment

7.9

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
9,007 reviews
Delta
7.9
Good
8,001 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

Entertainment

7.9

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
11,040 reviews
Delta
7.9
Good
8,001 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

Entertainment

7.9

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 37m. Delta provides one of the quickest options available for as low as $456. There are 2056 mi between Boston and Idaho Falls.

  • 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 43% lower than the current average price 3 months from now.

  • 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 $316). Flying from Boston to Idaho Falls in July is currently the most expensive (average of $439). 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

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.

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 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$346Average$482FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$400Average$494FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$528Average$699FlexibilityNo cancel feeOn-time69%

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.