Find Cheap Flights from Austin to Ontario (AUS - LAX)

Flights overview

Useful information for finding cheap flights from Austin to Ontario and booking your next trip

Cheapest round-trip flights	$200	Frontier 1 stop 12 hr Thu, May 28 — Sun, May 31	The cheapest round-trip flight from Austin to Ontario is currently $200
Cheapest one-way flight	$106	Frontier 1 stop 12 hr Wed, May 27	The cheapest one-way flight from Austin to Ontario is currently $106
Cheapest nonstop flights	$397	Southwest Nonstop 3 hr Thu, Jul 30 — Mon, Aug 3	The cheapest nonstop round-trip flight from Austin to Ontario is currently $397
Last-minute weekend getaway	$252	Frontier 1 stop 15 hr Sat, May 9 — Sun, May 10	The cheapest last-minute weekend getaway from Austin to Ontario is currently $252
Cheapest business class flights	$438	Frontier 1 stop 12 hr Thu, May 28 — Mon, Jun 1	The cheapest business class round-trip flight from Austin to Ontario is currently $438

Fastest flight	2 hr 55 min	The fastest nonstop flight from Austin to Ontario takes 2 hr 55 min
Nonstop flights	Some days	There are direct flights on this route 6 days a week: Mon, Tue, Wed, Thu, Fri, Sun.

When is the cheapest time to fly?

The cheapest month to fly from Austin to Ontario is typically October. The most expensive month to fly is typically March.

October Cheapest	Typical prices: $140–305
March Most expensive	Typical prices: $220–390

Popular airlines from Austin to Ontario

Southwest

Nonstop

from $277

Typical price: $275–510

6 weekly nonstop flights

AUS - ONT Every Mon, Tue, Wed, Thu, Fri, Sun

1398 weekly connecting flights

AUS - ONT Every day
American

from $308

Typical price: $275–510

492 weekly connecting flights

AUS - ONT Every day
United

from $306

Typical price: $290–600

200 weekly connecting flights

AUS - ONT Every day
Delta

from $277

Typical price: $305–710

138 weekly connecting flights

AUS - ONT Every day
Frontier

from $200

Typical price: $175–345

31 weekly connecting flights

AUS - ONT Every day
Alaska

from $499

Typical price: $320–710

27 weekly connecting flights

AUS - ONT Every day

Popular airports near Austin

Austin-Bergstrom International Airport (AUS)

Austin United States 24 min 6 mi
Dallas Fort Worth International Airport (DFW)

Dallas United States 3 hr 14 min 186 mi
George Bush Intercontinental Airport (IAH)

Houston United States 2 hr 44 min 144 mi
San Antonio International Airport (SAT)

San Antonio United States 1 hr 16 min 66 mi

Popular airports near Ontario

Ontario International Airport (ONT)

Ontario United States 11 min 2 mi
Los Angeles International Airport (LAX)

Los Angeles United States 1 hr 7 min 44 mi
Tijuana International Airport (TIJ)

Tijuana Mexico 2 hr 16 min 112 mi
San Diego International Airport (SAN)

San Diego United States 1 hr 50 min 95 mi

Frequently asked questions about flying from Austin to Ontario

The cheapest flights from Austin to Ontario are usually in October. Typical ticket prices in October range from $140 to $305.

The cheapest round-trip flight from Austin to Ontario recently found on Google Flights was with Frontier from $200. The cheapest one-way flight was with Frontier from $106.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Austin to Ontario is $277, flying from May 29 to Jun 1.
The cheapest American flight from Austin to Ontario is $308, flying from May 28 to Jun 1.
The cheapest United flight from Austin to Ontario is $306, flying from May 28 to Jun 1.
The cheapest Delta flight from Austin to Ontario is $277, flying from Jul 9 to Jul 12.
The cheapest Frontier flight from Austin to Ontario is $200, flying from May 28 to May 31.
The cheapest Alaska flight from Austin to Ontario is $499, flying from May 28 to May 31.

The cheapest round-trip flight from Austin to Ontario starts at $200 from Thu, May 28 to Sun, May 31. The cheapest one-way flight starts at $106 and departs on Wed, May 27.

2 hr 55 min is the shortest flight time from Austin to Ontario.

Ontario is a year-round destination, with mild to warm weather for much of the year. Summers (Jun–Aug) tend to be hot, while winters (Dec–Feb) are typically mild. There is a slightly higher chance of rain Jan–Apr. The Road to California (Jan) is a quilt show featuring quilting competitions, classes and exhibits. The city celebrates Independence Day (Jul 4) with a parade, picnic and fireworks display. The Route 66 Cruisin' Reunion (Sep) attracts vintage cars from around the country.

It's easy to use Google Flights to find the cheapest days to fly from Austin to Ontario.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Austin to Ontario really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Austin to Ontario.

In terms of nonstop flights, Southwest is the most popular. Southwest offers 6 nonstop flights and 1,398 connecting flights per week. Southwest flies from Austin-Bergstrom International Airport (AUS) to Ontario International Airport (ONT) .

Other popular airlines flying from Austin to Ontario are:

American offers 492 connecting flights per week. American flies from Austin-Bergstrom International Airport (AUS) to Ontario International Airport (ONT) .
United offers 200 connecting flights per week. United flies from Austin-Bergstrom International Airport (AUS) to Ontario International Airport (ONT) .
Delta offers 138 connecting flights per week. Delta flies from Austin-Bergstrom International Airport (AUS) to Ontario International Airport (ONT) .
Frontier offers 31 connecting flights per week. Frontier flies from Austin-Bergstrom International Airport (AUS) to Ontario International Airport (ONT) .
Alaska offers 27 connecting flights per week. Alaska flies from Austin-Bergstrom International Airport (AUS) to Ontario International Airport (ONT) .

The number of connecting flights refers to distinct flights with at least one stop between Austin and Ontario.

The cheapest round-trip flight from Austin to Ontario recently found on Google Flights was with Frontier from $200. The cheapest one-way flight was with Frontier from $106.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Austin to Ontario is $277, flying from May 29 to Jun 1.
The cheapest American flight from Austin to Ontario is $308, flying from May 28 to Jun 1.
The cheapest United flight from Austin to Ontario is $306, flying from May 28 to Jun 1.
The cheapest Delta flight from Austin to Ontario is $277, flying from Jul 9 to Jul 12.
The cheapest Frontier flight from Austin to Ontario is $200, flying from May 28 to May 31.
The cheapest Alaska flight from Austin to Ontario is $499, flying from May 28 to May 31.

Southwest flies direct from Austin to Ontario.

There are 6 Southwest direct flights from Austin to Ontario per week. Flights are available on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Austin and Ontario at price $252 is offered by Frontier from Sat, May 9 to Sun, May 10.

Southwest flies direct from Austin to Ontario.

There are 6 Southwest direct flights from Austin to Ontario per week. Flights are available on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

Direct flights from Austin to Ontario are only available on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday.

The cheapest direct (nonstop) round-trip flights between Austin and Ontario start at $397 from Thu, Jul 30 to Mon, Aug 3 with Southwest.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Austin to Ontario, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Austin and Ontario start at $438 from Thu, May 28 to Mon, Jun 1 with Frontier.

The cheapest economy class round-trip flights between Austin and Ontario start at $200 from Thu, May 28 to Sun, May 31.

To book business class trips from Austin to Ontario, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Austin and Ontario starts at $252 from Sat, May 9 to Sun, May 10 with Frontier.

The cheapest last-minute deal between Austin and Ontario at price $252 is offered by Frontier from Sat, May 9 to Sun, May 10.

To find last-minute flight deals from Austin to Ontario, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.