$122 Cheap Flights from Bozeman (BZN) to Ontario (ONT)

View $122 flight on Wed, Jun 4, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Bozeman to Ontario (BZN-ONT)

Prices were available within the past 7 days and start at $122 for one-way flights and $244 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bargain Flight
Sat, May 17 - Sat, May 24
BZN
Bozeman
ONT
Ontario
$244 Roundtrip, found 5 days ago
$244
Roundtrip
found 5 days ago
Select Bargain Flight flight, departing Sat, May 17 from Bozeman to Ontario, returning Sat, May 24, priced at $244 found 5 days ago
United
Wed, Jun 4 - Tue, Jun 10
BZN
Bozeman
ONT
Ontario
$245 Roundtrip, just found
$245
Roundtrip
just found
Select United flight, departing Wed, Jun 4 from Bozeman to Ontario, returning Tue, Jun 10, priced at $245 just found
Delta
Wed, Jun 4 - Wed, Jun 11
BZN
Bozeman
ONT
Ontario
$245 Roundtrip, just found
$245
Roundtrip
just found
Select Delta flight, departing Wed, Jun 4 from Bozeman to Ontario, returning Wed, Jun 11, priced at $245 just found
United
Wed, Jun 4 - Wed, Jun 11
BZN
Bozeman
ONT
Ontario
$248 Roundtrip, just found
$248
Roundtrip
just found
Select United flight, departing Wed, Jun 4 from Bozeman to Ontario, returning Wed, Jun 11, priced at $248 just found
Southwest Airlines
Tue, May 13 - Tue, May 20
BZN
Bozeman
ONT
Ontario
$250 Roundtrip, found 5 days ago
$250
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, May 13 from Bozeman to Ontario, returning Tue, May 20, priced at $250 found 5 days ago
Alaska Airlines
Sun, May 25 - Wed, May 28
BZN
Bozeman
ONT
Ontario
$254 Roundtrip, found 1 day ago
$254
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sun, May 25 from Bozeman to Ontario, returning Wed, May 28, priced at $254 found 1 day ago
Southwest Airlines
Tue, Jun 3 - Wed, Jun 4
BZN
Bozeman
ONT
Ontario
$258 Roundtrip, found 6 days ago
$258
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Jun 3 from Bozeman to Ontario, returning Wed, Jun 4, priced at $258 found 6 days ago
Alaska Airlines
Wed, Jun 11 - Sun, Jun 15
BZN
Bozeman
ONT
Ontario
$258 Roundtrip, found 23 hours ago
$258
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Wed, Jun 11 from Bozeman to Ontario, returning Sun, Jun 15, priced at $258 found 23 hours ago
Southwest Airlines
Tue, May 13 - Tue, May 20
BZN
Bozeman
ONT
Ontario
$263 Roundtrip, found 5 days ago
$263
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, May 13 from Bozeman to Ontario, returning Tue, May 20, priced at $263 found 5 days ago
Alaska Airlines
Sun, May 25 - Thu, May 29
BZN
Bozeman
ONT
Ontario
$264 Roundtrip, found 1 day ago
$264
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sun, May 25 from Bozeman to Ontario, returning Thu, May 29, priced at $264 found 1 day ago
Flights from Bozeman (BZN) to Ontario (ONT)
Origin airport
Bozeman Yellowstone Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$244
Distance
877 mi

Bozeman to Ontario Flights

The cheapest times to fly from Bozeman to Ontario

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

 

The best time to book a flight from Bozeman to Ontario

Sunday is one of the best days to book for cheap flights from Bozeman to Ontario: 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 Bozeman to Ontario

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 Bozeman to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $122 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 Bozeman to Ontario 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 Bozeman to Ontario 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 Gallatin Field Airport (BZN) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Discover the latest flight deals from BZN to ONT 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 BZN to ONT?
The cheapest flights from BZN to ONT 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 BZN to ONT?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from BZN to ONT. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Gallatin Field Airport (BZN) to Los Angeles - Ontario Intl. Airport (ONT)?
You’ll have to take a flight with a layover when traveling from Gallatin Field Airport (BZN) to Los Angeles - Ontario Intl. Airport (ONT). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from BZN to ONT?
Usually you’ll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gallatin Field Airport (BZN) to Los Angeles - Ontario Intl. Airport (ONT)?
Select a flight from Gallatin Field Airport (BZN) to Los Angeles - Ontario Intl. Airport (ONT) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures later than this 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.
What airports do you fly into for Ontario from Gallatin Field Airport (BZN)?
Explore your flight options from Gallatin Field Airport (BZN) to Los Angeles Intl. Airport (LAX). This is the only Ontario airport you can fly into if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Gallatin Field Airport (BZN) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute fares from BZN to ONT are generally more expensive. To secure the best rates, start searching for flights as early as possible. That said, if you’re flexible with your travel dates, you may land a cheap ticket right before you leave.
Is it cheaper to book a BZN to ONT flight and hotel package?
You’ll typically save money by securing a BZN to ONT flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s simple to manage everything in one place. After choosing your ideal flights and accommodations, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Gallatin Field Airport (BZN) to Los Angeles - Ontario Intl. Airport (ONT)?
In most cases, you can reschedule or cancel your BZN to ONT flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline’s guidelines and fees on flight changes, or if you need more details, go to our Customer Service portal.

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*Available to One Key members.