Expect long lines at AUS, especially during morning rush hours. Arrive early to avoid delays and enjoy live music performances.

Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $127 (Kiwi.com) |
One-way from | $61 (Trip.com) |
Popular in | December |
Cheapest in | August |
Average price | $363 |
Good round-trip deal | $467 or less |
Good one-way deal | $233 or less |
Fly from
Fly to
Route
Depart
Return
Price
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Tue 1/13
12:34 pm-9:05 pm
1 stop10h 31m
Ontario
Wed 1/21
1:10 pm-9:32 pm
1 stop6h 22m
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Tue 1/13
7:15 am-3:08 pm
1 stop9h 53m
Ontario
Wed 1/21
7:00 am-4:39 pm
1 stop7h 39m
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Wed 1/7
8:05 am-12:16 pm
1 stop6h 11m
Ontario
Wed 1/21
5:10 pm-12:34 am
1 stop5h 24m
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Wed 1/7
8:05 am-12:16 pm
1 stop6h 11m
Ontario
Tue 1/20
10:30 pm-9:46 am
1 stop9h 16m
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Tue 1/13
8:05 am-12:16 pm
1 stop6h 11m
Ontario
Tue 1/20
10:30 pm-9:46 am
1 stop9h 16m
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Wed 1/7
7:15 am-3:08 pm
1 stop9h 53m
Ontario
Wed 1/21
7:00 am-4:39 pm
1 stop7h 39m
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Wed 1/21
6:00 am-8:36 pm
2 stops16h 36m
Ontario
Mon 1/26
4:03 pm-3:54 pm
1 stop21h 51m
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Sat 1/10
7:15 am-3:08 pm
1 stop9h 53m
Ontario
Wed 1/21
7:00 am-4:39 pm
1 stop7h 39m
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Wed 2/25
12:17 pm-8:50 pm
2 stops10h 33m
AustinOntario
AUS - ONT
AUSONT
Austin Bergstrom
Thu 12/25
10:55 am-7:50 pm
1 stop10h 55m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from Austin to Ontario, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, September is the cheapest month in which you can book a flight from Austin to Ontario (average of $60). Flying from Austin to Ontario in March is currently the most expensive (average of $107). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Austin to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 20% versus a flight at noon.
Travelers seeking maximum savings on their Austin to Ontario flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
Walter,Aug 2025
OAK - SAN
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
Walter,Aug 2025
OAK - SAN
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
Walter,Aug 2025
OAK - SAN
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
Walter,Aug 2025
OAK - SAN
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
Walter,Aug 2025
OAK - SAN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$124 | Average$217 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$216 | Average$416 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$221 | Average$328 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$245 | Average$389 | FlexibilityNo cancel fee | On-time63% |