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Idaho Falls

$265+ Cheap flights from Boston to Idaho Falls (BOS - IDA)

BOS — IDA
Nov 21 — Nov 281
Sat 11/21
Sat 11/28
1 adult, Economy
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Cheap flight deals from Boston to Idaho Falls

Cheapest flights from Boston to Idaho Falls

Mon 11/166:05 am -
1 stop8h 10m
Sat 11/216:57 pm -
1 stop9h 23m
Deal found 10/20$399
Thu 12/31:05 pm -
2 stops11h 02m
Mon 12/76:59 pm -
2 stops14h 07m
Deal found 10/18$409
Sat 11/144:45 pm -
1 stop7h 37m
Wed 11/186:57 pm -
1 stop9h 23m
Deal found 10/22$419
Wed 11/46:05 am -
1 stop8h 17m
Sun 11/86:56 pm -
1 stop9h 04m
Deal found 10/18$439
Fri 12/256:00 am -
1 stop9h 15m
Wed 12/306:00 am -
1 stop9h 16m
Deal found 10/20$476

Find flight deals from Boston to Idaho Falls

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$399
(United Airlines)

One-way from

$265
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$577
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. 10% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Boston to Idaho Falls that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Sat 10/31

12:56 pm-9:42 pm

1 stop10h 46m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$265

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Sat 10/31

3:15 pm-10:10 pm

2 stops8h 55m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$270

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Fri 10/30

7:15 am-3:38 pm

2 stops10h 23m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$305

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Mon 11/16

6:05 am-12:15 pm

1 stop8h 10m

Idaho Falls Fanning Field

Sat 11/21

6:57 pm-6:20 am

1 stop9h 23m

$399

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Thu 12/3

1:05 pm-10:07 pm

2 stops11h 02m

Idaho Falls Fanning Field

Mon 12/7

6:59 pm-6:19 am

1 stop9h 20m

$404

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Sat 11/14

1:00 pm-10:22 pm

2 stops11h 22m

Idaho Falls Fanning Field

Wed 11/18

6:57 pm-6:20 am

1 stop9h 23m

$424

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Mon 12/28

8:38 am-8:04 am

3 stops25h 26m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$459

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Tue 11/3

5:44 pm-3:18 pm

1 stop23h 34m

Idaho Falls Fanning Field

Sat 11/7

1:53 pm-5:40 am

1 stop13h 47m

$479

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Thu 2/25

9:55 am-6:14 pm

2 stops10h 19m

Idaho Falls Fanning Field

Sun 2/28

6:45 pm-6:11 am

1 stop9h 26m

$494

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Fri 1/8

7:00 am-3:21 pm

1 stop10h 21m

Idaho Falls Fanning Field

Tue 1/12

3:58 pm-5:03 pm

2 stops23h 05m

$508

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 16 resultsSorted by cheapest first
1
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Compare providers for flights from Boston to Idaho Falls

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 Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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

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, January is the cheapest month in which you can book a flight from Boston to Idaho Falls (average of $450). Flying from Boston to Idaho Falls in December is currently the most expensive (average of $1,160). 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 Boston to Idaho Falls?

Airfare is below average for this route at the moment.

Boston to Idaho Falls flights typically cost between $464 and $614 in November.
The cheapest round-trip price found within the last 5 days was $399 on Delta (Nov 16-Nov 21).

Reviews of airlines servicing Idaho Falls

Get a feel of what it's like to fly with Alaska Airlines,United Airlines, andAmerican 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
7.9
Good
13,110 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
13,110 reviews
Alaska Airlines
7.9
Good
13,110 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
United Airlines
7.3
Good
10,407 reviews
Alaska Airlines
7.9
Good
13,110 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
American Airlines
7.0
Good
12,192 reviews
Alaska Airlines
7.9
Good
13,110 reviews

Crew

8.5

Boarding

8.1

Food

7.0

Entertainment

7.0

Overall

7.9

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

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

    A quick flight from Boston to Idaho Falls can take about 8h 10m. Delta provides one of the quickest options available for as low as $399. 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 Alaska Airlines is currently your cheapest option to Idaho Falls, with prices starting at $332. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $395 and $435, respectively. These flights start at 47% 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $164. United Airlines flights start at $233 while deals on American Airlines start at $235 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, January is the cheapest month in which you can book a flight from Boston to Idaho Falls (average of $450). Flying from Boston to Idaho Falls in December is currently the most expensive (average of $1,160). 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

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Boston to Idaho Falls

AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$332Average$748FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$395Average$581FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$435Average$620FlexibilityNo cancel feeOn-time69%

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