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£199 Cheap Flights from Boston (BOS) to Idaho Falls (IDA)

View £199 flight on Wed, 9 Sept 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Idaho Falls Regional Airport (IDA)

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

Prices were available within the past 7 days and start at £199 for one-way flights and £475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£475 Return, found 1 day ago
£475
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £475 found 1 day ago
Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£479 Return, found 1 day ago
£479
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £479 found 1 day ago
Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£483 Return, found 1 day ago
£483
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £483 found 1 day ago
Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£491 Return, found 1 day ago
£491
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £491 found 1 day ago
Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£493 Return, found 5 days ago
£493
Return
found 5 days ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £493 found 5 days ago
Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£495 Return, found 1 day ago
£495
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £495 found 1 day ago
Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£497 Return, found 1 day ago
£497
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £497 found 1 day ago
Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£501 Return, found 1 day ago
£501
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £501 found 1 day ago
Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£504 Return, found 5 days ago
£504
Return
found 5 days ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £504 found 5 days ago
Alaska Airlines
Fri, 18 Sept - Fri, 25 Sept
BOS
Boston
IDA
Idaho Falls
£509 Return, found 5 days ago
£509
Return
found 5 days ago
Select Alaska Airlines flight, departing Fri, 18 Sept from Boston to Idaho Falls, returning Fri, 25 Sept, priced at £509 found 5 days ago

Frequently asked questions

How much does a flight from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) cost?
You can find one-way and return flights from BOS to IDA with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when BOS to IDA ticket fares go up or down.
What is the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
If you're looking for the best time to fly from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional), September is typically the cheapest month. You can expect average return fares around £347 during this time. September often sees lower prices as the summer travel rush ends and before the winter holiday season begins, leading to reduced demand. Other budget-friendly months to consider for this route include January and March.
Which airlines fly direct from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
Enter BOS to IDA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
American Airlines is one of the cheapest airlines offering connecting return flights from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional), with prices starting from around £243 for flights that can be booked for departure within the next year. This price is for an economy/coach class ticket per adult, with a layover in Philadelphia Intl. (PHL). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
To find a cheap flight from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
The cheapest months to fly from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) are typically September and January, with average return flights costing around £347. While these months offer the best value, you'll want to consider your travel plans. September often brings pleasant weather, while January is in the heart of winter, which might be ideal if you're planning a ski trip.
How many flights per day from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
There are approximately 74 connecting flights per day from Boston Logan International (BOS) to Idaho Falls Regional (IDA). Some common connection points include Seattle - Tacoma International (SEA), O'Hare International (ORD), and Portland International (PDX).
What is the earliest flight from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
The earliest flight from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) typically departs around 5:00 AM. This service is operated by American Airlines. This is a seasonal service, active in June, July, and August. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
You'll find the most flights from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) on a Monday, with around 33 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, Alaska Airlines, and Delta. Looking at the week, Mondays have notably more flight options compared to other days, which typically see around 23 to 33 flights.
What are the most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
The most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) are in the early morning, from 6am to 9am. Many major carriers, including Alaska Airlines, American Airlines and United, offer flights during this window. Many travellers prefer this time as it allows you to get an early start on your journey and arrive at your destination with plenty of time left in the day.
How long does it take to fly from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
There are no nonstop flights from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional). The distance between these two airports is approximately 3310 kilometres (2057 miles).If you're flying with one stop, your journey will typically take around 9 hours 48 minutes. Flights with two or more stops usually take longer, averaging about 12 hours. Keep in mind that these times are averages and can vary based on your specific routing, layover duration, and factors like weather and wind patterns.
Can you fly business or first class from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
Yes, you can fly first class between BOS and IDA. First class cabins are available on Alaska Airlines, Delta, United, and American Airlines.
How do I earn miles on a Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight with Expedia?
It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Idaho Falls, ID (IDA) from Boston, MA (BOS)?
If you're planning to travel to Idaho Falls from Logan International Airport (BOS), you can fly directly into Idaho Falls Regional Airport (IDA). Some flights may connect through major hubs like O'Hare International Airport (ORD), Portland International Airport (PDX), or San Diego International Airport (SAN) before reaching Idaho Falls. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) at the last minute?
Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight and hotel package?
Securing a Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
If you booked your Boston, MA (BOS-Logan Intl.) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Logan Intl.
Destination airport
Idaho Falls Regional
Airlines serving
Alaska Airlines
Return price
£474
Distance
3290 km

Book with confidence

Compare flights from Boston to Idaho Falls easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Boston to Idaho Falls. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Idaho Falls Regional in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Logan Intl. to Idaho Falls Regional.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Logan Intl. (BOS) to Idaho Falls Regional (IDA)

The easiest way to view the best deals on flights from Boston to Idaho Falls today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Logan Intl. to Idaho Falls Regional start at just £475 and range up to £509.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Boston and Idaho Falls
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Boston to Idaho Falls flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Logan Intl. to Idaho Falls Regional for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Boston to Idaho Falls easily and book with confidence

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*Available to Expedia members.