$78 Find Cheap Flights from Austin to Ontario - Compare and Save

These are the earliest and latest flight times available from Austin to Ontario:

• Earliest: departs at 10:25 am and lands at 1:31 pm
• Latest: departs at 7:50 pm and lands at 10:56 pm.

The flight takes about 3h 06m.

Two cabin classes are available on flights from Austin to Ontario:

• Economy Class
• First Class

A nonstop flight from Austin to Ontario takes 3h 06m, covering 1,193 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Austin to Ontario range from $276 to $449, with an average of $355 over the past 12 months. Anything below $276 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 16% above the $355 route average. Book 20 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $216 round-trip via Houston George Bush Intcntl (IAH), compared to $467 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest. Other aircraft seen on the route include Boeing 737-800 variants.

Morning is the busiest departure period on Austin to Ontario flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

One-way fares from Austin to Ontario are currently lower than usual. Average one-way flight prices are about $101, which is 56% below the typical average for this route.

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

• Fox
• Thrifty
• Europcar
• Dollar
• Alamo

Flights from Austin to Ontario usually depart from Austin Bergstrom (AUS) and arrive at Ontario (ONT).

One-stop flights from Austin to Ontario most commonly connect through:

• Phoenix Sky Harbor Intl (PHX) - 52% of one-stop connections
• Denver Intl (DEN) - 25% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 10% of one-stop connections
• Salt Lake City (SLC) - 6% of one-stop connections

Yes. Flexible dates can save you up to 21% on flights from Austin to Ontario. Saturday is the cheapest departure day at $312 round-trip on average, while Monday is the most expensive at $392, a difference of $80.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Only Southwest operates flights between Austin and Ontario.

Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 4h 51m, compared with 5h 02m via Houston Hobby (HOU) and 5h 38m via Dallas/Fort Worth (DFW).

Ontario is 2 hours behind Austin (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Among airlines operating Austin to Ontario flights:

• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Southwest: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.