$77 Cheap Flights from Tucson (TUS) to Ontario (ONT)

View $77 flight on Tue, Oct 28, 2025Opens in a new window

Popular airlines from Tucson International Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Tucson to Ontario (TUS-ONT)

Prices were available within the past 7 days and start at $77 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Oct 28 - Mon, Nov 3
TUS
Tucson
ONT
Ontario
$154 Roundtrip, found 3 days ago
$154
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Tue, Oct 28 from Tucson to Ontario, returning Mon, Nov 3, priced at $154 found 3 days ago
Frontier Airlines
Mon, Oct 6 - Fri, Oct 10
TUS
Tucson
ONT
Ontario
$154 Roundtrip, just found
$154
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Oct 6 from Tucson to Ontario, returning Fri, Oct 10, priced at $154 just found
Southwest Airlines
Tue, Oct 14 - Fri, Oct 17
TUS
Tucson
ONT
Ontario
$171 Roundtrip, found 3 days ago
$171
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Tue, Oct 14 from Tucson to Ontario, returning Fri, Oct 17, priced at $171 found 3 days ago
Southwest Airlines
Tue, Oct 21 - Fri, Oct 24
TUS
Tucson
ONT
Ontario
$180 Roundtrip, found 6 days ago
$180
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Oct 21 from Tucson to Ontario, returning Fri, Oct 24, priced at $180 found 6 days ago
American Airlines
Tue, Oct 14 - Fri, Oct 17
TUS
Tucson
ONT
Ontario
$184 Roundtrip, found 3 days ago
$184
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Oct 14 from Tucson to Ontario, returning Fri, Oct 17, priced at $184 found 3 days ago
Frontier Airlines
Thu, Oct 9 - Tue, Oct 14
TUS
Tucson
ONT
Ontario
$185 Roundtrip, found 5 days ago
$185
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Thu, Oct 9 from Tucson to Ontario, returning Tue, Oct 14, priced at $185 found 5 days ago
Southwest Airlines
Wed, Oct 22 - Fri, Oct 24
TUS
Tucson
ONT
Ontario
$190 Roundtrip, found 5 days ago
$190
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Oct 22 from Tucson to Ontario, returning Fri, Oct 24, priced at $190 found 5 days ago
Frontier Airlines
Thu, Nov 13 - Sun, Nov 16
TUS
Tucson
ONT
Ontario
$192 Roundtrip, found 7 hours ago
$192
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Nov 13 from Tucson to Ontario, returning Sun, Nov 16, priced at $192 found 7 hours ago
United
Sat, Oct 18 - Tue, Oct 21
TUS
Tucson
ONT
Ontario
$198 Roundtrip, found 3 days ago
$198
Roundtrip
found 3 days ago
Select United flight, departing Sat, Oct 18 from Tucson to Ontario, returning Tue, Oct 21, priced at $198 found 3 days ago
Delta
Sat, Oct 25 - Wed, Oct 29
TUS
Tucson
ONT
Ontario
$257 Roundtrip, found 2 hours ago
$257
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Oct 25 from Tucson to Ontario, returning Wed, Oct 29, priced at $257 found 2 hours ago

Find the cheapest month to fly from Tucson (TUS) to Ontario (ONT)

April is typically the cheapest month to fly

From $140 - $550 per traveler.

Frequently asked questions

How much does a flight from Tucson Intl. Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Snag a cheap one-way flight from $77 or cheap return flight from $154 from Tucson Intl. Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT) 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 Tucson Intl. Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT)?
The cheapest month to fly from TUS to ONT is October, when demand is low. Off-peak season is often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Tucson Intl. Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from TUS to ONT. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Tucson Intl. Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT)?
There are no daily direct flights from Tucson Intl. Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from TUS to ONT?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change 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 Tucson Intl. Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT)?
To reach Los Angeles - Ontario Intl. Airport (ONT) on schedule, book a flight that takes off from Tucson Intl. Airport (TUS) 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.
What airports do you fly into for Ontario from Tucson Intl. Airport (TUS)?
Board a direct flight from Tucson Intl. Airport (TUS) to Ontario and arrive at Los Angeles Intl. Airport (LAX). An alternative point of entry into this destination is John Wayne Airport (SNA).
Is it cheaper to buy a plane ticket from Tucson Intl. Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute bookings from TUS to ONT are generally more expensive. To lock in the best prices, start looking for flights as early as possible. That said, if you're flexible with your travel dates, you may score a cheap fare just before your departure.
Is it cheaper to book a TUS to ONT flight and hotel package?
Securing a TUS to ONT flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our extensive range of stays and then add flights, car rentals and activities 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 Tucson Intl. Airport (TUS) to Los Angeles - Ontario Intl. Airport (ONT)?
In most cases, you can cancel or modify your TUS to ONT flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like further information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Tucson Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$154
Distance
407 mi

Book with confidence

Book with confidence

Tucson to Ontario Flights

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

 

The best time to book a flight from Tucson to Ontario

Sunday is one of the best days to book for cheap flights from Tucson 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 Tucson 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 Tucson to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $77 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 Tucson 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 Tucson 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.

 

Tucson to Ontario Flights

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*Available to One Key members.