Frontier Airlines Ontario to San Antonio Flights

Return flight: San Antonio – Ontario
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Cheapflightsplus.com will find cheap Frontier Airlines flights from Ontario to San Antonio. Compare airline ticket prices and book air tickets starting from $76 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Frontier Airlines, arrivals and departure details below.

Find Cheap Airfare Ontario (CA) — San Antonio (TX) by Frontier 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 february: one-way - $76, two-way – $130.
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Cheap Flights from Ontario to San Antonio by Frontier Airlines

Look at the list of plane tickets for the most connecting flights by Frontier Airlines, their prices start from $76. There’re no direct flights. The fastest connecting flight – 5h 30m.
Price Departure Arrival Flight Time Airline Flight
from $76
Find flight
0:49 am
Ontario
Ontario Int.
 8:19 am
San Antonio
San Antonio
 5h 30m
layover
0h 56m - Denver
 Frontier Airlines
F91500
F92356
from $82
Find flight
8:27 pm
Ontario
Ontario Int.
 8:19 am+1 день
San Antonio
San Antonio
 9h 52m
layover
5h 7m - Denver
 Frontier Airlines
F92908
F92356
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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 01/22/2025
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
0:49 am — 8:19 am
6:30 am — 9:54 am F91500 Frontier Airlines
Ontario — Denver
56m stop
7:10 am — 10:29 am F92356 Frontier Airlines
Denver — San Antonio
5h 30m
including layover
Find flight
from$76
8:27 pm — 8:19 am
+1 day
6:13 pm — 9:35 pm F92908 Frontier Airlines
Ontario — Denver
5h 7m stop
7:45 am — 11:04 am F92356 Frontier Airlines
Denver — San Antonio
9h 52m
including layover
Find flight
from$82
*Departure and arrival times are local. Last updated on 01/22/2025

Flight Information

There are 3 flights by Frontier 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 0:49 am to 8:27 pm. Nonstop flight is 5h 30m. The time difference between Ontario and San Antonio is 2h.

  • The fastest flight 5h 30m
  • Average flight time 7h 41m
  • The earliest flight 0:49 am
  • The latest flight 8:27 pm
  • Distance 1164 ml

The cheapest months for traveling to San Antonio are november (from 49 $), february (from 76 $).

The cheapest flight by Frontier Airlines that our users were able to find is $76. This airfare is economy class on one-way F91500 flight for February 21, 2025 leaving Ontario Int. in Ontario at 0:49 am, it includes all taxes and additional fees.

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Frontier Airlines Airplanes on the Route

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

Other Popular Airlines on the Route

Besides Frontier 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.

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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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