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

View $147 flight on Tue, Oct 7, 2025Opens in a new window

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

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Cheap Flights from Boise to Billings (BOI-BIL)

Prices were available within the past 7 days and start at $147 for one-way flights and $261 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bargain Flight
Tue, Sep 9 - Sat, Sep 13
BOI
Boise
BIL
Billings
$261 Roundtrip, found 5 days ago
$261
Roundtrip
found 5 days ago
Select Bargain Flight flight, departing Tue, Sep 9 from Boise to Billings, returning Sat, Sep 13, priced at $261 found 5 days ago
Hawaiian Airlines
Sat, Oct 4 - Tue, Oct 21
BOI
Boise
BIL
Billings
$262 Roundtrip, found 11 hours ago
$262
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Sat, Oct 4 from Boise to Billings, returning Tue, Oct 21, priced at $262 found 11 hours ago
Alaska Airlines
Sat, Oct 4 - Tue, Oct 7
BOI
Boise
BIL
Billings
$264 Roundtrip, found 11 hours ago
$264
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, Oct 4 from Boise to Billings, returning Tue, Oct 7, priced at $264 found 11 hours ago
Bargain Flight
Wed, Aug 27 - Tue, Sep 2
BOI
Boise
BIL
Billings
$270 Roundtrip, found 3 days ago
$270
Roundtrip
found 3 days ago
Select Bargain Flight flight, departing Wed, Aug 27 from Boise to Billings, returning Tue, Sep 2, priced at $270 found 3 days ago
Hawaiian Airlines
Sat, Oct 4 - Sat, Oct 25
BOI
Boise
BIL
Billings
$272 Roundtrip, found 11 hours ago
$272
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Sat, Oct 4 from Boise to Billings, returning Sat, Oct 25, priced at $272 found 11 hours ago
Alaska Airlines
Tue, Oct 7 - Sat, Oct 11
BOI
Boise
BIL
Billings
$273 Roundtrip, found 17 hours ago
$273
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Tue, Oct 7 from Boise to Billings, returning Sat, Oct 11, priced at $273 found 17 hours ago
Delta
Sat, Oct 4 - Sat, Oct 18
BOI
Boise
BIL
Billings
$274 Roundtrip, found 11 hours ago
$274
Roundtrip
found 11 hours ago
Select Delta flight, departing Sat, Oct 4 from Boise to Billings, returning Sat, Oct 18, priced at $274 found 11 hours ago
Alaska Airlines
Sat, Sep 20 - Sat, Sep 27
BOI
Boise
BIL
Billings
$275 Roundtrip, found 3 days ago
$275
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Sep 20 from Boise to Billings, returning Sat, Sep 27, priced at $275 found 3 days ago
Hawaiian Airlines
Sat, Oct 4 - Wed, Oct 15
BOI
Boise
BIL
Billings
$279 Roundtrip, found 11 hours ago
$279
Roundtrip
found 11 hours ago
Select Hawaiian Airlines flight, departing Sat, Oct 4 from Boise to Billings, returning Wed, Oct 15, priced at $279 found 11 hours ago
United
Sat, Sep 13 - Sat, Sep 20
BOI
Boise
BIL
Billings
$279 Roundtrip, found 6 days ago
$279
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 13 from Boise to Billings, returning Sat, Sep 20, priced at $279 found 6 days ago

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

January is typically the cheapest month to fly

From $227 - $554 per traveler.

Graph displaying average flight prices per month

Alternative airports near Billings

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

Select flight to Logan Intl. BIL. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $431
BIL
Logan Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $431
Flights from Boise (BOI) to Billings (BIL)
Origin airport
Boise
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$261
Distance
407 mi

Boise to Billings Flights

The cheapest times to fly from Boise to Billings

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

 

The best time to book a flight from Boise to Billings

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

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 Boise to Billings 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 Boise to Billings 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 Boise to Billings 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.

 

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Logan Intl. Airport (BIL) cost?
Discover the latest flight deals from BOI to BIL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BOI to BIL?
The cheapest flights from BOI to BIL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BOI to BIL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BOI to BIL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Boise Airport (BOI) to Logan Intl. Airport (BIL)?
You'll have to book a flight with a layover if you're traveling from Boise Airport (BOI) to Logan Intl. Airport (BIL). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from BOI to BIL?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Logan Intl. Airport (BIL)?
To avoid potential delays on the Boise Airport (BOI) to Logan Intl. Airport (BIL) route, fly before 3 PM. Departures after this time are 22% more likely to be canceled.**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 Boise Airport (BOI) to Logan Intl. Airport (BIL) last-minute?
Last-minute bookings from BOI to BIL are usually more expensive. To secure the lowest rates, start looking for flights well ahead of time. That said, if your travel plans are flexible, you may score a cheap fare right before you leave.
Is it cheaper to book a BOI to BIL flight and hotel package?
Securing a BOI to BIL flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our wide range of hotels and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Logan Intl. Airport (BIL)?
In most cases, you can reschedule or cancel your BOI to BIL flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you need further information, visit our Customer Service portal.

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*Available to One Key members.