BOS - IDA

$185 Find Cheap Flights from Boston to Idaho Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Idaho Falls departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Idaho Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Idaho Falls, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$369
Typical prices: $488-$400
American Airlines
Sat 9/26Sat 10/3
BOS - IDA • 1 stop
Cheapest one-way
$185
Typical prices: $367-$405
Alaska Airlines
Wed 7/15
BOS - IDA • 1 stop
Top airlines
Cheapest • from $369 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Idaho Falls. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $500 (round-trip)
Shortest trip • 8h 02m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Idaho Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Idaho Falls (BOS-IDA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Idaho Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Idaho Falls

Sat, Sep 26 - Sat, Oct 3
American Airlines Logo
6:00 am - 1:28 pm
BOS
-
IDA
9h 28m
1 stop
American Airlines Logo
1:58 pm - 11:59 pm
IDA
-
BOS
8h 01m
1 stop
$369American Airlines
Wed, Aug 26 - Tue, Sep 1
Delta Logo
1:10 pm - 10:32 pm
BOS
-
IDA
11h 22m
2 stops
Delta Logo
6:00 am - 7:42 pm
IDA
-
BOS
11h 42m
2 stops
$380Delta
Sat, Oct 3 - Sat, Oct 10
Delta Logo
6:05 am - 12:14 pm
BOS
-
IDA
8h 09m
1 stop
Delta Logo
6:45 pm - 6:11 am
IDA
-
BOS
9h 26m
1 stop
$394Delta
Wed, Aug 26 - Tue, Sep 1
American Airlines Logo
5:51 am - 1:50 pm
BOS
-
IDA
9h 59m
1 stop
American Airlines Logo
12:06 pm - 10:06 pm
IDA
-
BOS
8h 00m
1 stop
$396American Airlines
Wed, Aug 26 - Tue, Sep 1
Delta Logo
1:10 pm - 10:32 pm
BOS
-
IDA
11h 22m
2 stops
Delta Logo
6:00 am - 7:59 pm
IDA
-
BOS
11h 59m
2 stops
$399Delta
Sat, Oct 3 - Sat, Oct 10
Delta Logo
6:05 am - 12:14 pm
BOS
-
IDA
8h 09m
1 stop
Delta Logo
6:45 pm - 6:11 am
IDA
-
BOS
9h 26m
1 stop
$414Delta
Sat, Jun 20 - Mon, Jun 29
Delta Logo
11:15 am - 6:21 pm
BOS
-
IDA
9h 06m
1 stop
Delta Logo
7:00 pm - 6:05 am
IDA
-
BOS
9h 05m
1 stop
$419Delta
Thu, Sep 10 - Tue, Sep 15
Alaska Airlines Logo
10:03 am - 10:56 pm
BOS
-
IDA
14h 53m
1 stop
Alaska Airlines Logo
3:57 pm - 6:09 am
IDA
-
BOS
12h 12m
1 stop
$424Alaska Airlines
Sat, Jun 20 - Mon, Jun 29
Delta Logo
11:15 am - 6:21 pm
BOS
-
IDA
9h 06m
1 stop
Delta Logo
7:00 pm - 6:05 am
IDA
-
BOS
9h 05m
1 stop
$434Delta
Sat, Jun 20 - Mon, Jun 29
Delta Logo
11:15 am - 6:21 pm
BOS
-
IDA
9h 06m
1 stop
Delta Logo
7:00 pm - 11:15 am
IDA
-
BOS
14h 15m
2 stops
$439Delta
Booking Insights

KAYAK's insights & trends for Boston to Idaho Falls flights

Get data-powered insights and trends into flights from Boston to Idaho Falls to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boston to Idaho Falls?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Idaho Falls departing in September.

What is the cheapest month to fly from Boston to Idaho Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Idaho Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Idaho Falls is October, where tickets cost $400 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $881 and $790 respectively.

Good to know

Low seasonOctober
Cheapest flight$185
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from Boston to Idaho Falls

When to book flights from Boston to Idaho Falls

Are your dates flexible? Find out the best times to travel from Boston to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Idaho Falls

  • What is the cheapest flight from Boston to Idaho Falls?

    In the last 5 days, the lowest price for a flight from Boston to Idaho Falls was $185 for a one-way ticket and $369 for a round-trip.

  • Do I need a passport to fly between Boston and Idaho Falls?

    A passport is not required to fly from Boston to Idaho Falls.

  • Which aircraft models fly most regularly from Boston to Idaho Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Idaho Falls?

    Star Alliance, and oneworld are the airline alliances operating flights between Boston and Idaho Falls, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Idaho Falls, Alaska Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Idaho Falls are Alaska Airlines and United Airlines. With an average price for the route of $748 and an overall rating of 7.9, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $550 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Boston to Idaho Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Idaho Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Idaho Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Idaho Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to Boston with another airline. Booking your flights between Boston and IDA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Idaho Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Boston to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from Boston to Idaho Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Idaho Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12480 reviews
7.0Entertainment
7.8Comfort
8.1Boarding
8.5Crew
7.0Food
Airline reviews

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

6.0 GoodAnonymous, May 2026
PDX - BOI
Read more Alaska Airlines reviews

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

Nice to get moved from a middle seat to an aisle seat upon request, but why wasn’t I put in an aisle seat to begin with? The flight was not full.

The crew was great and everything went smoothly coming and going.

The merging of Kayak & the airline’s website was not always clear. Both on their own provided adequate Information about the flight. I had some challenges retrieving the boarding pass. I relied on the agent & may have paid the baggage fee twice.

Hello, Our flight arrived late, and the flight we were to connect to the departure time was moved up. At first our flight was scheduled to arrive at 10:40, but it arrived at 10:56. Our connecting flight was scheduled to leave at 11:25, and it was moved to 11:20. Also the terminal was moved from N to S. N would have been in the same terminal as the one we arrived in-- to get to S we had to take 3 trains to get to. And when we arrived at the gate, around 11:15, they said the gate was closed and would not open it. We had come from a funeral in Boston, and the person that helped us get new tickets said, "did you come from a girsl trip?" No, we did not. We were coming from a funeral. This experience was not what we expected/wanted. My friend, because she had to run to S, got a migraine and turned pale. In addition, I paid an extra $70 for an aisle seat that was more upfront, to make sure I can get off the plane faster and make the connecting flight. The fact that the plane not only did not wait, but left earlier, is absolutely unacceptable. This was a terrible experience, and I hope that I can be refunded for this horrible experience.

No outlets, plugs, way to charge the phone or service and no food on one leg o the trip, but other than that, great. Loved WIFI, the flight, the crew, the pilots, the schedule, etc. Great job. My new favorite airline!

Generally very good. Waiting (due to de-icing and traffic) in plane to take off was a put-off. But it's not the airline's fault. I find Airbus more comfortable than Boeing.

Smooth flight, on time despite Captain’s forecast of troublesome weather conditions.

Wonderful as always! Pleasant staff, smooth ride, and timely departure.

The flight was a disaster. It is a 40 min flight and we waited to the tarmac for well over 90 min with no updates, while the crew tried to reconcile the seating chart of people on the plane to what their phones showed. Terrible communication, systems and experience. I would do almost anything to avoid taking another Alaska flight after the experience last night.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

The flight back to Dallas was delayed, which has happened to me several times with American Airlines. There was no announcement, no update sent out, no compensation offered for the inconvenience.

It wa sort of on time; the cab was left with some trash

Our flight from JFK to Madrid was delayed. We had to go from one side of the Madrid airport (Terminal 4s to the far end of terminal 4 - Gate K98) to our gate in less than 30 minutes. Put passport control and security/baggage check and that’s very hard unless you’re Usain Bolt. I called Iberia Airlines and the telephone customer service told me that I was going to have to pay to re-book. Luckily the help desk in the airport (who was dealing with dozens of people from the same JFK-Madrid flight) did not charge us extra to reschedule to a flight 8 hours later. They also gave us a voucher for breakfast and lunch. Glad the actual person at the airport had some actual sense.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

Boarding was smooth and seamless and the flight was without incident.

Our flight was repeatedly delayed for maintenance problems: scheduled for 9.30am, eventually delayed to 7pm! Very very inconvenient! AA should have provided a substitute plane much earlier.. On the other hand, Customer Service crew in Charlotte helped us to reach NY (LGA) by late afternoon. Thank you Patricia!! The actual flight was quick and very comfortable. As always a. excellent, professional crew. [no food on a a short hop).

Take-off delayed an hour because of a missing flight officer, so,arrived in Charlotte lates causing many passengers to miss connections. Otherwise a very good flight, safe and comfortable, with an excellent professional crew.

Little time between flight from Dallas to flight to Gainesville. We chose this one, 43 minutes between, because the price for a connection with at least an hour between, was so much higher. Had to ask passengers on the Dallas flight to please allow us to deplane ahead of them. The economy passengers allowed this. We had to walk very fast to the next gate, 35 gates away. Thankfully all in the same terminal. Getting to the small Gainesville plane was a little confusing as you enter an area that is boarding many small planes at the same time. We stood in the wrong line for about 15 seconds before realizing it was not our Gainesville flight. Since I had boarded at this gate in the past, I knew to check the signs carefully so we weren’t lost. The first class seat experience was wonderful. I really enjoyed the upgrade. We were offered an alcohol drink as soon as we sat down. I got something different but it was a great gesture especially since we really had to hurry to make the flight. We had packed expecting we might miss this connection, but made it. Our luggage didn’t miss the flight. American Airlines delivered our bags to our home the next day. That was very convenient!

The plane was large, not full, but one with 3 seats near each window and 4 in a row in the middle of the plane. There were screens on the backs of the seats for entertainment and information. To use the entertainment one needs ear plugs that physically plug into the screen. My husband had some he let me use as I only had blue tooth type. The stewards gave out some headphones to some, but when my neighbor asked for some, the steward said no. So maybe they ran out? Idk. Bring the old kind of headphones or earbuds if you want entertainment in case this is the type of entertainment offered. We had a very tight connection in Miami. 43 minutes. The other economy passengers allowed us to get ahead of them because I asked if we could since we were near boarding time for our next flight and 35 gates away. They were extremely kind. First class wasn’t going to allow us to pass through. We did make the next flight. Our baggage didn’t, but they were delivered to us the next day and we were prepared with essentials in our carry on packs.

Everything you need to know for your flight from Boston to Idaho Falls

Information on your arrival and departure airports