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 $218 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 january: one-way - $218, two-way – $374.
Direct flights
  • Check to choose departure date Check to choose departure date
Check prices for return flight
Find flights
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
12:25 pm — 10:29 pm
12:25 pm — 1:35 pm UA6117 United Airlines
San Antonio — Houston
7h 15m stop
8:50 pm — 10:29 pm UA1563 United Airlines
Houston — Ontario
12h 4m
including layover
Find flight
from$549
1:18 pm — 12:42 pm
+1 day
1:00 pm — 2:24 pm UA1299 United Airlines
San Antonio — Denver
20h 33m stop
11:15 am — 12:41 pm UA430 United Airlines
Denver — Ontario
25h 24m
including layover
Find flight
from$276
1:18 pm — 8:55 pm
1:18 pm — 2:42 pm UA1299 United Airlines
San Antonio — Denver
4h 46m stop
7:28 pm — 8:55 pm UA351 United Airlines
Denver — Ontario
9h 37m
including layover
Find flight
from$302
2:24 pm — 10:29 pm
2:24 pm — 3:33 pm UA6287 United Airlines
San Antonio — Houston
5h 17m stop
8:50 pm — 10:29 pm UA1563 United Airlines
Houston — Ontario
10h 5m
including layover
Find flight
from$723
2:27 pm — 9:57 pm
2:27 pm — 3:34 pm UA2498 United Airlines
San Antonio — Houston
4h 41m stop
8:15 pm — 9:57 pm UA1563 United Airlines
Houston — Ontario
9h 30m
including layover
Find flight
from$429
3:25 pm — 8:40 pm
3:25 pm — 5:44 pm UA5906 United Airlines
San Antonio — San Francisco
1h 26m stop
7:10 pm — 8:40 pm UA794 United Airlines
San Francisco — Ontario
7h 15m
including layover
Find flight
from$297
4:19 pm — 9:59 pm
4:00 pm — 5:07 pm UA2157 United Airlines
San Antonio — Houston
2h 50m stop
8:15 pm — 9:57 pm UA1563 United Airlines
Houston — Ontario
7h 40m
including layover
Find flight
from$218
4:50 pm — 9:10 pm
4:50 pm — 6:14 pm UA1884 United Airlines
San Antonio — Denver
1h 30m stop
7:44 pm — 9:10 pm UA1574 United Airlines
Denver — Ontario
6h 20m
including layover
Find flight
from$218
5:30 am — 8:49 pm
5:30 am — 6:53 am UA1399 United Airlines
San Antonio — Denver
12h 30m stop
7:23 pm — 8:49 pm UA1574 United Airlines
Denver — Ontario
17h 19m
including layover
Find flight
from$424
5:57 pm — 9:59 pm
6:02 pm — 7:10 pm UA465 United Airlines
San Antonio — Houston
1h 12m stop
8:50 pm — 10:29 pm UA1563 United Airlines
Houston — Ontario
6h 2m
including layover
Find flight
from$218
6:55 pm — 10:29 pm
6:55 pm — 8:05 pm UA6298 United Airlines
San Antonio — Houston
45m stop
8:50 pm — 10:29 pm UA1563 United Airlines
Houston — Ontario
5h 34m
including layover
Find flight
from$426
7:00 am — 1:16 pm
7:00 am — 9:07 am UA2051 United Airlines
San Antonio — San Francisco
2h 40m stop
11:47 am — 1:16 pm UA5684 United Airlines
San Francisco — Ontario
8h 16m
including layover
Find flight
from$426
7:30 pm — 0:18 am
+1 day
7:30 pm — 9:50 pm UA5394 United Airlines
San Antonio — San Francisco
1h stop
10:50 pm — 0:18 am UA1870 United Airlines
San Francisco — Ontario
6h 48m
including layover
Find flight
from$294
8:49 am — 12:41 pm
8:49 am — 10:12 am UA1045 United Airlines
San Antonio — Denver
1h 3m stop
11:15 am — 12:41 pm UA430 United Airlines
Denver — Ontario
5h 52m
including layover
Find flight
from$218
8:49 am — 9:10 pm
8:49 am — 10:12 am UA1045 United Airlines
San Antonio — Denver
9h 32m stop
7:44 pm — 9:10 pm UA1574 United Airlines
Denver — Ontario
14h 21m
including layover
Find flight
from$233
9:00 am — 12:42 pm
8:49 am — 10:11 am UA791 United Airlines
San Antonio — Denver
52m stop
11:16 am — 12:40 pm UA430 United Airlines
Denver — Ontario
5h 42m
including layover
Find flight
from$364
9:30 am — 2:30 pm
9:30 am — 11:47 am UA5476 United Airlines
San Antonio — San Francisco
1h 13m stop
1:00 pm — 2:30 pm UA5684 United Airlines
San Francisco — Ontario
7h
including layover
Find flight
from$559
*Departure and arrival times are local. Last updated on 12/22/2024

Flight Information

There are 29 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 12:25 pm to 9:30 am. Nonstop flight is 5h 34m. The time difference between San Antonio and Ontario is 2h.

  • The fastest flight 5h 34m
  • Average flight time 9h 19m
  • The earliest flight 12:25 pm
  • The latest flight 9:30 am
  • Distance 1164 ml

The cheapest months for traveling to Ontario are january (from 218 $), february (from 218 $), december (from 355 $).

The cheapest flight by United Airlines that our users were able to find is $218. This airfare is economy class on one-way UA465 flight for January 22, 2025 leaving San Antonio in San Antonio at 5:57 pm, it includes all taxes and additional fees.

Find same flight?

Other Popular Airlines on the Route

Besides United Airlines there are other 5 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.

I’m lucky

Connecting Flights

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

See more connecting flights

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.

Back