United Airlines Ontario to San Antonio Flights

Cheapflightsplus.com will find cheap United Airlines flights from Ontario to San Antonio. Compare airline ticket prices and book air tickets starting from $212 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 Ontario (CA) — San Antonio (TX) 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 - $212, two-way – $364.
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
10:39 am — 6:39 pm
10:39 am — 12:20 pm UA4639 United Airlines
Ontario — San Francisco
35m stop
12:55 pm — 6:39 pm UA5435 United Airlines
San Francisco — San Antonio
6h
including layover
Find flight
from$218
10:39 am — 11:49 pm
10:39 am — 12:20 pm UA4639 United Airlines
Ontario — San Francisco
6h 5m stop
6:25 pm — 11:49 pm UA214 United Airlines
San Francisco — San Antonio
11h 10m
including layover
Find flight
from$362
1:42 pm — 11:44 pm
1:42 pm — 5:01 pm UA1942 United Airlines
Ontario — Denver
3h 29m stop
8:30 pm — 11:44 pm UA1103 United Airlines
Denver — San Antonio
8h 2m
including layover
Find flight
from$212
1:57 pm — 11:49 pm
1:57 pm — 3:35 pm UA5921 United Airlines
Ontario — San Francisco
2h 50m stop
6:25 pm — 11:49 pm UA214 United Airlines
San Francisco — San Antonio
7h 52m
including layover
Find flight
from$212
5:05 am — 12:55 pm
5:05 am — 8:23 am UA2329 United Airlines
Ontario — Denver
1h 17m stop
9:40 am — 12:55 pm UA1131 United Airlines
Denver — San Antonio
5h 50m
including layover
Find flight
from$212
5:10 am — 1:21 pm
5:10 am — 8:29 am UA2317 United Airlines
Ontario — Denver
1h 36m stop
10:05 am — 1:21 pm UA1131 United Airlines
Denver — San Antonio
6h 11m
including layover
Find flight
from$218
6:00 am — 3:42 pm
6:00 am — 11:03 am UA2360 United Airlines
Ontario — Houston
3h 27m stop
2:37 pm — 3:49 pm UA2399 United Airlines
Houston — San Antonio
7h 42m
including layover
Find flight
from$218
6:10 am — 3:36 pm
6:10 am — 11:14 am UA722 United Airlines
Ontario — Houston
3h 14m stop
2:28 pm — 3:36 pm UA2399 United Airlines
Houston — San Antonio
7h 26m
including layover
Find flight
from$212
*Departure and arrival times are local. Last updated on 12/22/2024

Flight Information

There are 42 flights by United Airlines from Ontario to San Antonio every week with departures from Ontario Int. and International Heliport. All flights arrive at San Antonio, Kelly AFB, Stinson Municipal, Randolph AFB, Martindale AAF.

Departures start from 10:39 am to 6:15 am. Nonstop flight is 5h 11m. The time difference between Ontario and San Antonio is 2h.

  • The fastest flight 5h 11m
  • Average flight time 10h 24m
  • The earliest flight 10:39 am
  • The latest flight 6:15 am
  • Distance 1164 ml

The cheapest months for traveling to San Antonio are december (from 212 $), february (from 218 $), january (from 219 $).

The most expensive and popular months are november (from 491 $), january (from 219 $), february (from 218 $).

The cheapest flight by United Airlines that our users were able to find is $212. This airfare is economy class on one-way UA722 flight for December 25, 2024 leaving Ontario Int. in Ontario at 6:10 am, it includes all taxes and additional fees.

Find same flight?

Other Popular Airlines on the Route

Besides United Airlines there are other 4 airline carriers between Ontario and San Antonio. Please review schedules and prices from the most popular airlines to find the best airfare deals from Ontario to San Antonio.

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