United Airlines Ontario to San Antonio Flights

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Cheapflightsplus.com will find cheap United Airlines flights from Ontario to San Antonio. Compare airline ticket prices and book air tickets starting from $240 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 march: one-way - $240, two-way – $412.

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Cheap Flights from Ontario to San Antonio by United Airlines

Look at the list of plane tickets for the most connecting flights by United Airlines, their prices start from $240. There’re no direct flights. The fastest connecting flight – 5h 27m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $240 Find flight	5:05 am Ontario Ontario Int.	1:10 pm San Antonio San Antonio	6h 5m layover 1h 30m - Denver	United Airlines	UA1575 UA1131
from $240 Find flight	6:00 am Ontario Ontario Int.	1:27 pm San Antonio San Antonio	5h 27m layover 1h 13m - Houston	United Airlines	UA722 UA2378
from $240 Find flight	6:00 am Ontario Ontario Int.	1:49 pm San Antonio San Antonio	5h 49m layover 0h 51m - San Francisco	United Airlines	UA277 UA5468

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 02/23/2025

United Airlines Flight Schedule Ontario to San Antonio

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	Flight Details	Flight Time	Price
5:05 am — 1:10 pm	5:05 am — 8:24 am UA1575 United Airlines Ontario — Denver 1h 30m stop 9:54 am — 1:10 pm UA1131 United Airlines Denver — San Antonio	6h 5m including layover	Find flight from$240
5:05 am — 4:55 pm	5:05 am — 8:24 am UA1575 United Airlines Ontario — Denver 5h 16m stop 1:40 pm — 4:55 pm UA1022 United Airlines Denver — San Antonio	9h 50m including layover	Find flight from$298
6:00 am — 1:27 pm	6:00 am — 11:02 am UA722 United Airlines Ontario — Houston 1h 13m stop 12:15 pm — 1:27 pm UA2378 United Airlines Houston — San Antonio	5h 27m including layover	Find flight from$240
6:00 am — 1:49 pm	6:00 am — 7:29 am UA277 United Airlines Ontario — San Francisco 51m stop 8:20 am — 1:49 pm UA5468 United Airlines San Francisco — San Antonio	5h 49m including layover	Find flight from$240

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 02/23/2025

Flight Information

There are 5 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 5:05 am to 6:00 am. Nonstop flight is 5h 27m. The time difference between Ontario and San Antonio is 2h.

The fastest flight 5h 27m
Average flight time 5h 57m
The earliest flight 5:05 am
The latest flight 6:00 am
Distance 1164 ml

The cheapest months for traveling to San Antonio are february (from 240 $).

The cheapest flight by United Airlines that our users were able to find is $240. This airfare is economy class on one-way UA1575 flight for February 21, 2025 leaving Ontario Int. in Ontario at 5:05 am, it includes all taxes and additional fees.

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United Airlines Airplanes on the Route

List of the most popular United Airlines airplanes flying from Ontario to San Antonio:

Other Popular Airlines on the Route

Besides United Airlines there are other 3 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.

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Connecting Flights

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

AS - Alaska Airlines

from $248

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F9 - Frontier Airlines

from $52

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Y4 - Volaris

from $316

Find

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How to book an air ticket yourself?

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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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