United Airlines San Antonio to Ontario Flights

Cheapflightsplus.com will find cheap United Airlines flights from San Antonio to Ontario. Compare airline ticket prices and book air tickets starting from $51 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 San Antonio (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 may: one-way - $51, two-way – $87.
Direct flights
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Below is a detailed 2024 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
11:27 am — 3:04 pm
11:27 am — 12:43 pm UA1510 United Airlines
San Antonio — Denver
1h 2m stop
1:45 pm — 3:04 pm UA617 United Airlines
Denver — Ontario
5h 37m
including layover
Find flight
from$51
3:03 pm — 8:17 pm
3:03 pm — 4:19 pm UA589 United Airlines
San Antonio — Denver
2h 43m stop
7:02 pm — 8:17 pm UA1689 United Airlines
Denver — Ontario
7h 14m
including layover
Find flight
from$51
3:03 pm — 8:00 pm
3:03 pm — 4:19 pm UA589 United Airlines
San Antonio — Denver
2h 21m stop
6:40 pm — 8:00 pm WN1880 Southwest Airlines
Denver — Ontario
6h 57m
including layover
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from$90
4:20 pm — 9:25 pm
4:20 pm — 5:20 pm UA1930 United Airlines
San Antonio — Houston
2h 20m stop
7:40 pm — 9:25 pm UA6331 United Airlines
Houston — Ontario
7h 5m
including layover
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from$51
4:50 pm — 8:30 pm
4:50 pm — 6:14 pm UA5640 United Airlines
San Antonio — Denver
1h 6m stop
7:20 pm — 8:30 pm UA1199 United Airlines
Denver — Ontario
5h 40m
including layover
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from$298
5:20 pm — 9:09 pm
5:20 pm — 6:28 pm UA716 United Airlines
San Antonio — Denver
1h 17m stop
7:45 pm — 9:09 pm UA683 United Airlines
Denver — Ontario
5h 49m
including layover
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from$52
5:55 pm — 9:25 pm
5:55 pm — 6:55 pm UA2111 United Airlines
San Antonio — Houston
45m stop
7:40 pm — 9:25 pm UA6331 United Airlines
Houston — Ontario
5h 30m
including layover
Find flight
from$51
7:00 am — 12:02 pm
7:00 am — 8:55 am UA5857 United Airlines
San Antonio — San Francisco
1h 40m stop
10:35 am — 12:02 pm UA5371 United Airlines
San Francisco — Ontario
7h 2m
including layover
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from$51
7:45 am — 11:43 am
7:45 am — 8:49 am UA2486 United Airlines
San Antonio — Houston
1h 31m stop
10:20 am — 11:43 am UA6083 United Airlines
Houston — Ontario
5h 58m
including layover
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from$52
8:55 am — 3:04 pm
8:55 am — 10:19 am UA3634 United Airlines
San Antonio — Denver
3h 26m stop
1:45 pm — 3:04 pm UA617 United Airlines
Denver — Ontario
8h 9m
including layover
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from$51
8:55 am — 12:33 pm
8:55 am — 10:19 am UA3634 United Airlines
San Antonio — Denver
56m stop
11:15 am — 12:33 pm UA5593 United Airlines
Denver — Ontario
5h 38m
including layover
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from$51
9:00 am — 12:39 pm
9:00 am — 10:11 am UA456 United Airlines
San Antonio — Denver
1h 14m stop
11:25 am — 12:39 pm UA2033 United Airlines
Denver — Ontario
5h 39m
including layover
Find flight
from$103
9:00 am — 11:28 pm
9:00 am — 10:11 am UA456 United Airlines
San Antonio — Denver
11h 54m stop
10:05 pm — 11:28 pm F9371 Frontier Airlines
Denver — Ontario
16h 28m
including layover
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from$110
10:00 am — 5:32 pm
10:00 am — 11:00 am UA2156 United Airlines
San Antonio — Houston
1h 15m stop
12:15 pm — 2:40 pm UA1434 United Airlines
Houston — San Francisco
1h 25m stop
4:05 pm — 5:32 pm UA5422 United Airlines
San Francisco — Ontario
9h 32m
including layover
Find flight
from$98
11:50 am — 7:30 pm
11:50 am — 12:50 pm UA567 United Airlines
San Antonio — Houston
1h 50m stop
2:40 pm — 5:05 pm UA1481 United Airlines
Houston — San Francisco
1h 7m stop
6:12 pm — 7:30 pm UA5930 United Airlines
San Francisco — Ontario
9h 40m
including layover
Find flight
from$98
12:15 pm — 9:09 pm
12:15 pm — 1:14 pm UA6158 United Airlines
San Antonio — Houston
3h 46m stop
5:00 pm — 6:24 pm UA245 United Airlines
Houston — Denver
1h 21m stop
7:45 pm — 9:09 pm UA683 United Airlines
Denver — Ontario
10h 54m
including layover
Find flight
from$120
12:15 pm — 8:01 pm
12:15 pm — 1:14 pm UA6158 United Airlines
San Antonio — Houston
1h 46m stop
3:00 pm — 5:01 pm UA271 United Airlines
Houston — San Francisco
1h 39m stop
6:40 pm — 8:01 pm UA5611 United Airlines
San Francisco — Ontario
9h 46m
including layover
Find flight
from$136
1:40 pm — 0:09 am
+1 day
1:40 pm — 4:29 pm UA4520 United Airlines
San Antonio — Chicago
2h 26m stop
6:55 pm — 9:37 pm UA493 United Airlines
Chicago — San Francisco
1h 3m stop
10:40 pm — 0:09 am UA2190 United Airlines
San Francisco — Ontario
12h 29m
including layover
Find flight
from$398
1:40 pm — 0:09 am
+1 day
1:40 pm — 4:29 pm UA4520 United Airlines
San Antonio — Chicago
1h 21m stop
5:50 pm — 8:28 pm UA743 United Airlines
Chicago — San Francisco
2h 12m stop
10:40 pm — 0:09 am UA2190 United Airlines
San Francisco — Ontario
12h 29m
including layover
Find flight
from$398
2:02 pm — 9:05 pm
2:02 pm — 3:04 pm UA2024 United Airlines
San Antonio — Houston
1h 32m stop
4:36 pm — 6:08 pm UA825 United Airlines
Houston — Denver
1h 47m stop
7:55 pm — 9:05 pm UA1199 United Airlines
Denver — Ontario
9h 3m
including layover
Find flight
from$312
2:15 pm — 8:17 pm
2:15 pm — 3:15 pm UA2024 United Airlines
San Antonio — Houston
1h 5m stop
4:20 pm — 5:54 pm UA1590 United Airlines
Houston — Denver
1h 8m stop
7:02 pm — 8:17 pm UA1689 United Airlines
Denver — Ontario
8h 2m
including layover
Find flight
from$209
6:26 pm — 11:19 am
+1 day
6:26 pm — 7:27 pm UA2111 United Airlines
San Antonio — Houston
11h 9m stop
6:36 am — 8:50 am UA1925 United Airlines
Houston — San Francisco
58m stop
9:48 am — 11:19 am UA5371 United Airlines
San Francisco — Ontario
18h 53m
including layover
Find flight
from$334
6:35 am — 9:05 pm
6:35 am — 11:19 am UA715 United Airlines
San Antonio — Newark
4h 42m stop
4:01 pm — 6:18 pm UA2429 United Airlines
Newark — Denver
1h 37m stop
7:55 pm — 9:05 pm UA1199 United Airlines
Denver — Ontario
16h 30m
including layover
Find flight
from$256
*Departure and arrival times are local. Last updated on 04/27/2024

Flight Information

There are 165 flights by United Airlines from San Antonio to Ontario every week with departures from San Antonio, Kelly AFB, Stinson Municipal, Randolph AFB, Martindale AAF. All flights arrive at Ontario Int. and International Heliport.

Departures start from 10:00 am to 9:45 am. Nonstop flight is 5h 30m. The time difference between San Antonio and Ontario is 2h.

  • The fastest flight 5h 30m
  • Average flight time 11h 57m
  • The earliest flight 10:00 am
  • The latest flight 9:45 am
  • Distance 1164 ml

The cheapest flight by United Airlines that our users were able to find is $51. This airfare is economy class on one-way UA3634 flight for November 12, 2020 leaving San Antonio in San Antonio at 8:55 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 7 airline carriers between San Antonio and Ontario. Please review schedules and prices from the most popular airlines to find the best airfare deals from San Antonio 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.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • 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.

    To find a plane ticket, please select dates.

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