United Airlines Austin to Ontario Flights

Return flight: Ontario – Austin

Cheapflightsplus.com will find cheap United Airlines flights from Austin to Ontario. Compare airline ticket prices and book air tickets starting from $259 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Austin (TX) — Ontario (CA) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in march: one-way - $259, two-way – $444.
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
10:53 am — 8:55 pm
10:53 am — 12:19 pm UA779 United Airlines
Austin — Denver
7h 9m stop
7:28 pm — 8:55 pm UA351 United Airlines
Denver — Ontario
12h 2m
including layover
Find flight
from$302
12:50 pm — 8:55 pm
12:50 pm — 2:15 pm UA1225 United Airlines
Austin — Denver
5h 13m stop
7:28 pm — 8:55 pm UA351 United Airlines
Denver — Ontario
10h 5m
including layover
Find flight
from$296
3:32 pm — 8:40 pm
3:32 pm — 5:37 pm UA298 United Airlines
Austin — San Francisco
1h 33m stop
7:10 pm — 8:40 pm UA794 United Airlines
San Francisco — Ontario
7h 8m
including layover
Find flight
from$362
4:45 pm — 8:55 pm
4:45 pm — 6:10 pm UA2447 United Airlines
Austin — Denver
1h 18m stop
7:28 pm — 8:55 pm UA351 United Airlines
Denver — Ontario
6h 10m
including layover
Find flight
from$281
5:59 pm — 12:42 pm
+1 day
5:59 pm — 7:05 pm UA1326 United Airlines
Austin — Houston
3h 15m stop
10:20 pm — 11:59 pm UA1338 United Airlines
Houston — Denver
11h 16m stop
11:15 am — 12:42 pm UA430 United Airlines
Denver — Ontario
20h 43m
including layover
Find flight
from$259
5:59 pm — 9:59 pm
5:55 pm — 7:02 pm UA1326 United Airlines
Austin — Houston
1h 10m stop
8:15 pm — 9:57 pm UA1563 United Airlines
Houston — Ontario
6h
including layover
Find flight
from$279
5:59 pm — 12:42 pm
+1 day
5:59 pm — 7:05 pm UA1326 United Airlines
Austin — Houston
1h 18m stop
8:23 pm — 10:08 pm UA1839 United Airlines
Houston — Denver
13h 7m stop
11:15 am — 12:42 pm UA430 United Airlines
Denver — Ontario
20h 43m
including layover
Find flight
from$286
7:00 am — 8:55 pm
7:00 am — 8:25 am UA361 United Airlines
Austin — Denver
11h 3m stop
7:28 pm — 8:55 pm UA351 United Airlines
Denver — Ontario
15h 55m
including layover
Find flight
from$275
7:00 am — 6:05 pm
7:00 am — 8:06 am UA656 United Airlines
Austin — Houston
1h 24m stop
9:30 am — 11:56 am UA2358 United Airlines
Houston — San Francisco
4h 41m stop
4:37 pm — 6:05 pm UA1932 United Airlines
San Francisco — Ontario
13h 5m
including layover
Find flight
from$383
7:30 am — 8:40 pm
7:30 am — 9:32 am UA324 United Airlines
Austin — San Francisco
9h 38m stop
7:10 pm — 8:40 pm UA794 United Airlines
San Francisco — Ontario
15h 10m
including layover
Find flight
from$345
7:30 am — 6:05 pm
7:30 am — 9:32 am UA324 United Airlines
Austin — San Francisco
7h 5m stop
4:37 pm — 6:05 pm UA1932 United Airlines
San Francisco — Ontario
12h 35m
including layover
Find flight
from$345
7:44 pm — 12:42 pm
+1 day
7:44 pm — 8:50 pm UA2066 United Airlines
Austin — Houston
1h 30m stop
10:20 pm — 11:59 pm UA1338 United Airlines
Houston — Denver
11h 16m stop
11:15 am — 12:42 pm UA430 United Airlines
Denver — Ontario
18h 58m
including layover
Find flight
from$259
7:44 pm — 8:55 pm
+1 day
7:44 pm — 8:50 pm UA2066 United Airlines
Austin — Houston
1h 30m stop
10:20 pm — 11:59 pm UA1338 United Airlines
Houston — Denver
19h 29m stop
7:28 pm — 8:55 pm UA351 United Airlines
Denver — Ontario
27h 11m
including layover
Find flight
from$259
8:55 am — 8:55 pm
8:55 am — 10:20 am UA595 United Airlines
Austin — Denver
9h 8m stop
7:28 pm — 8:55 pm UA351 United Airlines
Denver — Ontario
14h
including layover
Find flight
from$302
9:30 am — 6:05 pm
9:30 am — 11:38 am UA1668 United Airlines
Austin — San Francisco
4h 59m stop
4:37 pm — 6:05 pm UA1932 United Airlines
San Francisco — Ontario
10h 35m
including layover
Find flight
from$377
9:30 am — 8:40 pm
9:30 am — 11:38 am UA1668 United Airlines
Austin — San Francisco
7h 32m stop
7:10 pm — 8:40 pm UA794 United Airlines
San Francisco — Ontario
13h 10m
including layover
Find flight
from$377
*Departure and arrival times are local. Last updated on 02/23/2025

Flight Information

There are 17 flights by United Airlines from Austin to Ontario every week with departures from Austin-Bergstrom Intl, Austin, Camp Maybry AHP. All flights arrive at Ontario Int. and International Heliport.

Departures start from 10:53 am to 9:30 am. Nonstop flight is 6h. The time difference between Austin and Ontario is 2h.

  • The fastest flight 6h
  • Average flight time 13h 8m
  • The earliest flight 10:53 am
  • The latest flight 9:30 am
  • Distance 1195 ml

The cheapest months for traveling to Ontario are february (from 259 $), january (from 279 $).

The cheapest flight by United Airlines that our users were able to find is $259. This airfare is economy class on one-way UA1326 flight for February 21, 2025 leaving Austin-Bergstrom Intl in Austin at 5:59 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 2 airline carriers between Austin and Ontario. Please review schedules and prices from the most popular airlines to find the best airfare deals from Austin to Ontario.

Nonstop flights

There’re no direct flights on this route. Try flights with stops.

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
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  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

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