$147 Cheap Flights from Idaho Falls (IDA) to Boise (BOI)

View $147 flight on Fri, Jan 30, 2026Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI)

Cheap Flights from Idaho Falls to Boise (IDA-BOI)

Prices were available within the past 7 days and start at $147 for one-way flights and $225 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Apr 14 - Tue, Apr 21
IDA
Idaho Falls
BOI
Boise
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Apr 14 from Idaho Falls to Boise, returning Tue, Apr 21, priced at $225 found 2 days ago
Alaska Airlines
Sat, Dec 6 - Wed, Dec 10
IDA
Idaho Falls
BOI
Boise
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Idaho Falls to Boise, returning Wed, Dec 10, priced at $262 found 2 days ago
Hawaiian Airlines
Tue, Jan 13 - Sat, Jan 17
IDA
Idaho Falls
BOI
Boise
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 13 from Idaho Falls to Boise, returning Sat, Jan 17, priced at $262 found 2 days ago
Delta
Sat, Jan 24 - Tue, Feb 10
IDA
Idaho Falls
BOI
Boise
$264 Roundtrip, found 4 days ago
$264
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Jan 24 from Idaho Falls to Boise, returning Tue, Feb 10, priced at $264 found 4 days ago
Delta
Tue, Mar 17 - Sun, Apr 5
IDA
Idaho Falls
BOI
Boise
$271 Roundtrip, found 4 days ago
$271
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Mar 17 from Idaho Falls to Boise, returning Sun, Apr 5, priced at $271 found 4 days ago
Hawaiian Airlines
Fri, Jan 16 - Sat, Jan 17
IDA
Idaho Falls
BOI
Boise
$272 Roundtrip, found 2 days ago
$272
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Fri, Jan 16 from Idaho Falls to Boise, returning Sat, Jan 17, priced at $272 found 2 days ago
Hawaiian Airlines
Sat, Feb 14 - Sat, Feb 28
IDA
Idaho Falls
BOI
Boise
$278 Roundtrip, found 4 days ago
$278
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Sat, Feb 14 from Idaho Falls to Boise, returning Sat, Feb 28, priced at $278 found 4 days ago
Delta
Tue, Apr 14 - Wed, Apr 22
IDA
Idaho Falls
BOI
Boise
$282 Roundtrip, found 2 days ago
$282
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Apr 14 from Idaho Falls to Boise, returning Wed, Apr 22, priced at $282 found 2 days ago
American Airlines
Sat, Nov 15 - Sat, Nov 22
IDA
Idaho Falls
BOI
Boise
$552 Roundtrip, found 1 day ago
$552
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Nov 15 from Idaho Falls to Boise, returning Sat, Nov 22, priced at $552 found 1 day ago
United
Fri, Nov 21 - Mon, Nov 24
IDA
Idaho Falls
BOI
Boise
$712 Roundtrip, found 9 hours ago
$712
Roundtrip
found 9 hours ago
Select United flight, departing Fri, Nov 21 from Idaho Falls to Boise, returning Mon, Nov 24, priced at $712 found 9 hours ago

Find the cheapest month to fly from Idaho Falls (IDA) to Boise (BOI)

January is typically the cheapest month to fly

From $219 - $564 per traveler.

Alternative airports near Boise

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boise Airport BOI. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $450
BOI
Boise Airport
CheapestClosest
Average driving time to city center8 min
Flights from $450

Frequently asked questions

How much does a flight from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI) cost?
Secure a cheap one-way flight from $147 or cheap return flight from $225 from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI)?
The cheapest month to fly from IDA to BOI is April, when there's less demand. Off-peak months are typically when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from IDA to BOI. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI)?
There are no daily nonstop flights departing from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from IDA to BOI?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI)?
Book a flight from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI) last-minute?
Booking your plane ticket from IDA to BOI right before your getaway is usually more expensive. But if there's some wiggle room with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book an IDA to BOI flight and hotel package?
Compared with arranging hotels and flights separately, booking an IDA to BOI flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place will take the stress out of travel planning. Just pick your flights and choose from our extensive range of hotels, then customize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI)?
If you booked your IDA to BOI flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Idaho Falls Regional
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$224
Distance
207 mi

Book with confidence

Idaho Falls to Boise Flights

The cheapest times to fly from Idaho Falls to Boise

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Idaho Falls to Boise are during the month of April. You can find some of the cheapest flights from Idaho Falls to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Idaho Falls to Boise

Sunday is one of the best days to book for cheap flights from Idaho Falls to Boise: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Idaho Falls to Boise

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Idaho Falls to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $147 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Idaho Falls to Boise flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Idaho Falls to Boise airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Idaho Falls to Boise Flights

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*Available to One Key members.