Frontier Airlines San Antonio to Ontario Flights

Cheapflightsplus.com will find cheap Frontier Airlines flights from San Antonio to Ontario. Compare airline ticket prices and book air tickets starting from $71 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 San Antonio (TX) — Ontario (CA) 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 may: one-way - $71, two-way – $122.
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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
11:05 pm — 10:55 am
+1 day
11:05 pm — 11:59 pm F92075 Frontier Airlines
San Antonio — Las Vegas
9h 56m stop
9:55 am — 10:55 am WN1363 Southwest Airlines
Las Vegas — Ontario
13h 50m
including layover
Find flight
from$91
1:25 pm — 8:15 pm
1:25 pm — 2:26 pm F92075 Frontier Airlines
San Antonio — Las Vegas
4h 44m stop
7:10 pm — 8:15 pm F92187 Frontier Airlines
Las Vegas — Ontario
8h 50m
including layover
Find flight
from$75
1:25 pm — 6:50 pm
1:25 pm — 2:26 pm F92075 Frontier Airlines
San Antonio — Las Vegas
3h 24m stop
5:50 pm — 6:50 pm WN2341 Southwest Airlines
Las Vegas — Ontario
7h 25m
including layover
Find flight
from$178
3:54 pm — 10:00 pm
3:54 pm — 4:41 pm F92075 Frontier Airlines
San Antonio — Las Vegas
4h 24m stop
9:05 pm — 10:00 pm WN1662 Southwest Airlines
Las Vegas — Ontario
8h 6m
including layover
Find flight
from$230
7:34 pm — 11:48 am
+1 day
7:34 pm — 9:00 pm F9387 Frontier Airlines
San Antonio — Denver
13h 20m stop
10:20 am — 11:48 am F9371 Frontier Airlines
Denver — Ontario
18h 14m
including layover
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from$71
7:36 pm — 12:33 pm
+1 day
7:36 pm — 8:54 pm F9387 Frontier Airlines
San Antonio — Denver
14h 21m stop
11:15 am — 12:33 pm UA5593 United Airlines
Denver — Ontario
18h 57m
including layover
Find flight
from$71
8:35 pm — 12:50 pm
+1 day
8:35 pm — 9:28 pm F92077 Frontier Airlines
San Antonio — Las Vegas
14h 17m stop
11:45 am — 12:50 pm WN1699 Southwest Airlines
Las Vegas — Ontario
18h 15m
including layover
Find flight
from$86
8:49 pm — 6:55 pm
+1 day
8:49 pm — 9:42 pm F92075 Frontier Airlines
San Antonio — Las Vegas
20h 13m stop
5:55 pm — 6:55 pm WN1005 Southwest Airlines
Las Vegas — Ontario
24h 6m
including layover
Find flight
from$85
9:10 am — 7:17 pm
9:10 am — 10:32 am F9387 Frontier Airlines
San Antonio — Denver
7h 27m stop
5:59 pm — 7:17 pm F9373 Frontier Airlines
Denver — Ontario
12h 7m
including layover
Find flight
from$101
11:15 am — 9:55 am
+1 day
11:15 am — 12:31 pm F9387 Frontier Airlines
San Antonio — Denver
9h 50m stop
10:21 pm — 11:11 pm F9753 Frontier Airlines
Denver — Phoenix
9h 29m stop
8:40 am — 9:55 am WN1797 Southwest Airlines
Phoenix — Ontario
24h 40m
including layover
Find flight
from$77
6:35 pm — 11:25 am
+1 day
6:35 pm — 7:51 pm F9387 Frontier Airlines
San Antonio — Denver
2h 30m stop
10:21 pm — 11:13 pm F9753 Frontier Airlines
Denver — Phoenix
10h 55m stop
10:08 am — 11:25 am AA524 American Airlines
Phoenix — Ontario
18h 50m
including layover
Find flight
from$81
6:49 pm — 12:28 pm
+1 day
6:49 pm — 8:05 pm F9387 Frontier Airlines
San Antonio — Denver
2h 5m stop
10:10 pm — 11:57 pm F9665 Frontier Airlines
Denver — San Francisco
11h 8m stop
11:05 am — 12:28 pm UA5371 United Airlines
San Francisco — Ontario
19h 39m
including layover
Find flight
from$103
*Departure and arrival times are local. Last updated on 04/25/2024

Flight Information

There are 28 flights by Frontier 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 11:05 pm to 9:10 am. Nonstop flight is 7h 25m. The time difference between San Antonio and Ontario is 2h.

  • The fastest flight 7h 25m
  • Average flight time 18h 1m
  • The earliest flight 11:05 pm
  • The latest flight 9:10 am
  • Distance 1164 ml

The cheapest flight by Frontier Airlines that our users were able to find is $71. This airfare is economy class on one-way F9387 flight for October 12, 2020 leaving San Antonio in San Antonio at 7:34 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides Frontier 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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  • 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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