$195 Cheap Flights from Baton Rouge (BTR) to Ontario (ONT)

Popular airlines from Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT)

Cheap Flights from Baton Rouge to Ontario (BTR-ONT)

Prices were available within the past 7 days and start at $195 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
United
Delta
Delta
Delta
United
United
Delta
United
Alaska Airlines

Find the cheapest month to fly from Baton Rouge (BTR) to Ontario (ONT)

May is typically the cheapest month to fly

From $258 - $851 per traveler.

Graph displaying average flight prices per month

Alternative airports near Ontario

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

Flights from Baton Rouge (BTR) to Ontario (ONT)
Origin airport
Baton Rouge Metropolitan
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$288
Distance
1558 mi

Baton Rouge to Ontario Flights

The cheapest times to fly from Baton Rouge 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 Baton Rouge to Ontario are during the month of November. You can find some of the cheapest flights from Baton Rouge to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baton Rouge to Ontario

Sunday is one of the best days to book for cheap flights from Baton Rouge 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 Baton Rouge 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 Baton Rouge to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $195 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 Baton Rouge 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 Baton Rouge 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 Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Get a cheap one-way flight from $195 or cheap return flight from $289 from Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT) 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 Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT)?
The cheapest month to fly from BTR to ONT is November, when demand is low. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BTR to ONT flight.
How many flights per day from Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT)?
There aren't any daily nonstop flights departing from Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from BTR to ONT?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change based on the time of year, carrier 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 Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT)?
To arrive at Los Angeles - Ontario Intl. Airport (ONT) on schedule, select a flight that takes off from Baton Rouge Metropolitan Airport (BTR) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Waiting until just before your trip to book your flight from BTR to ONT often results in higher prices. Although you may find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for a better chance of snagging a bargain.
Is it cheaper to book a BTR to ONT flight and hotel package?
You can save money by booking a BTR 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 easy to manage it all in one place. Once you've selected your preferred flights and accommodations, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Baton Rouge Metropolitan Airport (BTR) to Los Angeles - Ontario Intl. Airport (ONT)?
You can usually cancel or reschedule your BTR to ONT flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.