$147 Cheap Flights from Billings (BIL) to Boise (BOI)

View $147 flight on Mon, Dec 29, 2025Opens in a new window

Popular airlines from Billings Logan Intl. Airport (BIL) to Boise Airport (BOI)

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Cheap Flights from Billings to Boise (BIL-BOI)

Prices were available within the past 7 days and start at $147 for one-way flights and $245 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sat, Feb 21 - Tue, Feb 24
BIL
Billings
BOI
Boise
$245 Roundtrip, found 22 hours ago
$245
Roundtrip
found 22 hours ago
Select Hawaiian Airlines flight, departing Sat, Feb 21 from Billings to Boise, returning Tue, Feb 24, priced at $245 found 22 hours ago
Hawaiian Airlines
Sun, Jan 18 - Sat, Jan 31
BIL
Billings
BOI
Boise
$250 Roundtrip, found 2 days ago
$250
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Sun, Jan 18 from Billings to Boise, returning Sat, Jan 31, priced at $250 found 2 days ago
Hawaiian Airlines
Sat, Dec 13 - Wed, Dec 24
BIL
Billings
BOI
Boise
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Dec 13 from Billings to Boise, returning Wed, Dec 24, priced at $253 found 1 day ago
Delta
Wed, Dec 3 - Mon, Dec 15
BIL
Billings
BOI
Boise
$256 Roundtrip, found 1 day ago
$256
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Dec 3 from Billings to Boise, returning Mon, Dec 15, priced at $256 found 1 day ago
Alaska Airlines
Wed, Jan 21 - Sat, Jan 24
BIL
Billings
BOI
Boise
$262 Roundtrip, found 2 hours ago
$262
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Billings to Boise, returning Sat, Jan 24, priced at $262 found 2 hours ago
Hawaiian Airlines
Sat, Dec 13 - Thu, Dec 25
BIL
Billings
BOI
Boise
$263 Roundtrip, found 1 day ago
$263
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sat, Dec 13 from Billings to Boise, returning Thu, Dec 25, priced at $263 found 1 day ago
Alaska Airlines
Thu, Dec 18 - Mon, Jan 5
BIL
Billings
BOI
Boise
$264 Roundtrip, found 1 day ago
$264
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Billings to Boise, returning Mon, Jan 5, priced at $264 found 1 day ago
Delta
Tue, Dec 9 - Thu, Jan 8
BIL
Billings
BOI
Boise
$266 Roundtrip, found 1 day ago
$266
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Dec 9 from Billings to Boise, returning Thu, Jan 8, priced at $266 found 1 day ago
United
Wed, Jan 21 - Sat, Jan 24
BIL
Billings
BOI
Boise
$295 Roundtrip, found 2 hours ago
$295
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Jan 21 from Billings to Boise, returning Sat, Jan 24, priced at $295 found 2 hours ago
American Airlines
Wed, Jan 21 - Sat, Jan 24
BIL
Billings
BOI
Boise
$458 Roundtrip, found 2 hours ago
$458
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Jan 21 from Billings to Boise, returning Sat, Jan 24, priced at $458 found 2 hours ago

Find the cheapest month to fly from Billings (BIL) to Boise (BOI)

February is typically the cheapest month to fly

From $228 - $543 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 $362
BOI
Boise Airport
CheapestClosest
Average driving time to city center8 min
Flights from $362

Frequently asked questions

How much does a flight from Logan Intl. Airport (BIL) to Boise Airport (BOI) cost?
Get a cheap one-way flight from $147 or cheap return flight from $245 from Logan Intl. Airport (BIL) to Boise Airport (BOI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Logan Intl. Airport (BIL) to Boise Airport (BOI)?
February is the least expensive month to fly from BIL to BOI. Timing your trip outside of the busy season is often the key to landing a great deal.
What is the cheapest airline that flies from Logan Intl. Airport (BIL) to Boise Airport (BOI)?
To find the cheapest airline that'll fly you from BIL to BOI, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Logan Intl. Airport (BIL) to Boise Airport (BOI)?
Direct flights from Logan Intl. Airport (BIL) to Boise Airport (BOI) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BIL to BOI?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BIL) to Boise Airport (BOI)?
To avoid potential delays on the Logan Intl. Airport (BIL) to Boise Airport (BOI) route, travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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 Logan Intl. Airport (BIL) to Boise Airport (BOI) last-minute?
Booking your plane ticket from BIL to BOI shortly before your journey is generally more expensive. But if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a BIL to BOI flight and hotel package?
Compared with arranging hotels and flights separately, booking a BIL to BOI flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place will take the hassle out of travel planning. Simply secure your flights and choose from our extensive range of hotels, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Logan Intl. Airport (BIL) to Boise Airport (BOI)?
In most instances, you're able to reschedule or cancel your BIL to BOI flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you need further information, head to our Customer Service portal.

Travel information

Origin airport
Logan Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$242
Distance
407 mi

Book with confidence

Billings to Boise Flights

The cheapest times to fly from Billings 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 Billings to Boise are during the month of February. You can find some of the cheapest flights from Billings to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Billings to Boise

Sunday is one of the best days to book for cheap flights from Billings 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 Billings 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 Billings 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 Billings 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 Billings 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.

 

Billings to Boise Flights

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*Available to One Key members.