BOS - IDA

$205 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 8/30. 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
Overall average: $450
American Airlines
Tue 9/8Tue 9/22
BOS - IDA • 1 stop
Cheapest one-way
$205
Typical prices: $240-$286
American Airlines
Sun 8/30
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 $473 (round-trip)
Shortest trip • 7h 44m (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
Start a new search
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

Tue, Sep 8 - Tue, Sep 22
American Airlines Logo
5:29 am - 12:10 pm
BOS
-
IDA
8h 41m
1 stop
American Airlines Logo
1:44 pm - 11:54 pm
IDA
-
BOS
8h 10m
1 stop
$369American Airlines
Tue, Sep 8 - Tue, Sep 22
United Airlines Logo
6:00 am - 3:29 pm
BOS
-
IDA
11h 29m
2 stops
United Airlines Logo
2:30 pm - 11:42 pm
IDA
-
BOS
7h 12m
1 stop
$394United Airlines
Wed, Apr 1 - Sun, Apr 5
American Airlines Logo
5:30 am - 1:48 pm
BOS
-
IDA
10h 18m
1 stop
American Airlines Logo
6:05 am - 10:41 pm
IDA
-
BOS
14h 36m
2 stops
$434American Airlines
Sat, Aug 29 - Sat, Sep 5
Delta Logo
6:00 am - 2:27 pm
BOS
-
IDA
10h 27m
1 stop
Delta Logo
6:50 pm - 6:09 am
IDA
-
BOS
9h 19m
1 stop
$444Delta
Sat, Aug 29 - Sat, Sep 5
Delta Logo
9:05 am - 10:14 pm
BOS
-
IDA
15h 09m
2 stops
Delta Logo
11:20 am - 11:52 pm
IDA
-
BOS
10h 32m
2 stops
$454Delta
Tue, May 26 - 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
$455American Airlines
Sat, Aug 29 - Sat, Sep 5
Delta Logo
6:00 am - 2:27 pm
BOS
-
IDA
10h 27m
1 stop
Delta Logo
11:20 am - 10:20 pm
IDA
-
BOS
9h 00m
2 stops
$459Delta
Thu, Apr 23 - Sun, May 3
American Airlines Logo
6:00 am - 1:13 pm
BOS
-
IDA
9h 13m
1 stop
American Airlines Logo
1:43 pm - 12:04 am
IDA
-
BOS
8h 21m
1 stop
$462American Airlines
Sat, Aug 29 - Sat, Sep 5
Delta Logo
9:05 am - 10:14 pm
BOS
-
IDA
15h 09m
2 stops
Delta Logo
11:20 am - 10:20 pm
IDA
-
BOS
9h 00m
2 stops
$464Delta
Tue, May 26 - Sun, May 31
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
$471American 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.

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 $930 and $814 respectively.

Good to know

Low seasonOctober
Cheapest flight$205
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?

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

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

    The two airlines most popular with KAYAK users for flights from Boston to Idaho Falls are Alaska Airlines and Delta. With an average price for the route of $692 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $523 and an overall rating of 7.9.

  • 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 4 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 12062 reviews
8.1Boarding
7.0Entertainment
7.0Food
8.5Crew
7.8Comfort
Airline reviews

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.

8.0 ExcellentPeter, Mar 2026
BOS - SEA
Read more Alaska Airlines reviews

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.

The seats were not very comfortable and there were no TV screens. Boarding was pretty fast because there were so few people on such a small plane and I appreciated that they still gave us our snack and drinks, however I really wish they would come up with a good gluten-free snack.

Flight crew and flight were good. But it departed two hours late.

Food was bad. Just a drink for a 5 hour flight

Leg and arm room are horrible. I am not a big person and found it tight.

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

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

Information on your arrival and departure airports