BOS - IDA

$190 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 5/16. 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
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$369
Typical prices: $467-$413
American Airlines
Sat 9/26Sat 10/3
BOS - IDA • 1 stop
Cheapest one-way
$190
Delta
Sat 5/16
BOS - IDA • 2 stops
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 $475 (round-trip)
Shortest trip • 7h 48m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% 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
7:08 am - 12:12 pm
BOS
-
IDA
7h 04m
1 stop
American Airlines Logo
1:44 pm - 11:54 pm
IDA
-
BOS
8h 10m
1 stop
$369American Airlines
Sat, May 16 - Sat, May 23
Delta Logo
8:10 am - 6:14 pm
BOS
-
IDA
12h 04m
2 stops
Delta Logo
6:54 pm - 6:20 am
IDA
-
BOS
9h 26m
1 stop
$374Delta
Wed, Aug 12 - Tue, Aug 18
American Airlines Logo
6:00 am - 1:42 pm
BOS
-
IDA
9h 42m
1 stop
American Airlines Logo
7:00 am - 7:42 pm
IDA
-
BOS
10h 42m
1 stop
$396American Airlines
Sat, May 23 - Sat, May 30
Alaska Airlines Logo
6:00 am - 1:17 pm
BOS
-
IDA
9h 17m
1 stop
Alaska Airlines Logo
4:03 pm - 6:20 am
IDA
-
BOS
12h 17m
1 stop
$409Alaska Airlines
Mon, Jun 1 - Fri, Jun 5
Alaska Airlines Logo
6:00 am - 1:17 pm
BOS
-
IDA
9h 17m
1 stop
Alaska Airlines Logo
4:03 pm - 6:11 pm
IDA
-
BOS
24h 08m
2 stops
$416Alaska Airlines
Tue, Jul 7 - Wed, Jul 22
American Airlines Logo
5:10 am - 1:23 pm
BOS
-
IDA
10h 13m
1 stop
American Airlines Logo
7:00 am - 7:20 pm
IDA
-
BOS
10h 20m
1 stop
$423American Airlines
Thu, Aug 13 - Tue, Aug 18
American Airlines Logo
1:00 pm - 9:20 pm
BOS
-
IDA
10h 20m
1 stop
American Airlines Logo
7:00 am - 7:42 pm
IDA
-
BOS
10h 42m
1 stop
$428American Airlines
Sun, May 24 - Sat, May 30
American Airlines Logo
5:05 am - 1:38 pm
BOS
-
IDA
10h 33m
1 stop
American Airlines Logo
12:44 pm - 12:15 am
IDA
-
BOS
9h 31m
1 stop
$434American Airlines
Thu, Oct 8 - Mon, Oct 12
Alaska Airlines Logo
9:20 am - 10:39 pm
BOS
-
IDA
15h 19m
1 stop
Alaska Airlines Logo
4:03 pm - 8:02 am
IDA
-
BOS
13h 59m
1 stop
$449Alaska Airlines
Fri, Aug 14 - Tue, Aug 18
American Airlines Logo
6:00 am - 1:42 pm
BOS
-
IDA
9h 42m
1 stop
American Airlines Logo
7:00 am - 7:42 pm
IDA
-
BOS
10h 42m
1 stop
$454American Airlines
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 $988 and $814 respectively.

Good to know

Low seasonOctober
Cheapest flight$190
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 29% 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 3 days, the lowest price for a flight from Boston to Idaho Falls was $190 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 $579 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 12314 reviews
7.1Food
8.1Boarding
7.8Comfort
7.0Entertainment
8.5Crew
Airline reviews

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

10.0 ExcellentHayes, Apr 2026
SEA - IDA
Read more Alaska Airlines reviews

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.

Flight was scheduled to leave at 6a and delayed for 5 hours due to “mechanical” issues. Everyone else on the flight received an email voucher for $24 of food for the delay, except for our group. Also the carry on luggage bins were full and the crew requested that everyone to pass their carry ons back up to the front while everyone was still standing. They gave no other direction and kept rushing the process. After all bags were sent up, they then asked for seat #s to go with each bag… They should have probably had everyone get to their sits and then pass the bags up in a controlled process.

From Las Vegas to Boise all went well. However, our flight was delayed in Boise and I missed my connecting flight from Seattle to Pasco. Moreover, the last flight to Pasco was full and I was booked on the 11:30 flight Sunday and given a hotel accommodation. However, I was scheduled to deliver the Sunday morning service at my church and needed to arrive no later than 10:00. Therefore, I booked a Delta flight scheduled to arrive in Pasco at 23:09. My piece of luggage checked in Las Vegas arrived in Pasco earlier today. I waited at the airport for over an hour last night to speak with an Alaska agent to no avail. I went back after church this morning in search of my piece of luggage and it could not be located. After waiting for 40 minutes to speak to the agent authorized to take my claim, he announced that he was closing the counter to assist on the flight line but not before providing me with a telephone number that would help me with filing my claim. Before I was able to make the call (due to other factors) I received a call from Alaska agent informing me that my luggage had just arrived and I am now waiting for it to be delivered. I deliberately took the more complicated route home to ensure that I would be home in plenty of time to prepare for myself for the Sunday service and accommodate my relatives’ needs. I believe the airport is undermanned given the number of flights coming in and going out. It was fiasco last night with three flights waiting for luggage and another flight landing within minutes. Today’s problems stemmed from a lack of cross training and a serious amount of cargo/baggage going out and too few people scheduled to cover.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

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

Information on your arrival and departure airports