Cheap Flights from Ontario, CA to San Antonio, TX from $76

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: San Antonio – Ontario

Page navigation

Price Calendar Cheap Flights Flights Schedule

On Cheapflightsplus.com you will find 52 connecting flights from Ontario to San Antonio. You can compare airfare deals from 5 airlines and multiple travel sites from $76, book and save on cheap plane tickets and last minute offers. Also check out ONT-SAT flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Ontario to San Antonio Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $76 (one-way), $130 (round-trip).

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

Best Flights from Ontario to San Antonio Today

Take a look at the list of non stop flights and flights with layovers from Ontario to San Antonio with the lowest price of $76. Take a look at the list of flights with layovers from Ontario to San Antonio from $76. There’re no direct flights. The fastest connecting flight – 5h 18m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $76 Find flight	00:49 Ontario Ontario Int.	08:19 San Antonio San Antonio	5h 30m layover 0h 56m - Denver	Frontier Airlines	F91500 F92356
from $82 Find flight	20:27 Ontario Ontario Int.	08:19+1 день San Antonio San Antonio	9h 52m layover 5h 7m - Denver	Frontier Airlines	F92908 F92356
from $205 Find flight	13:45 Ontario Ontario Int.	21:03 San Antonio San Antonio	5h 18m layover 0h 45m - Denver	United Airlines	UA2278 UA1762
from $205 Find flight	06:00 Ontario Ontario Int.	13:24 San Antonio San Antonio	5h 24m layover 1h 9m - Houston	United Airlines	UA2360 UA492
from $205 Find flight	10:39 Ontario Ontario Int.	18:39 San Antonio San Antonio	6h 0m layover 0h 35m - San Francisco	United Airlines	UA4639 UA5435
from $205 Find flight	06:00 Ontario Ontario Int.	15:42 San Antonio San Antonio	7h 42m layover 3h 27m - Houston	United Airlines	UA2360 UA2399
from $228 Find flight	06:00 Ontario Ontario Int.	13:27 San Antonio San Antonio	5h 27m layover 1h 13m - Houston	United Airlines	UA722 UA2378
from $228 Find flight	06:00 Ontario Ontario Int.	13:49 San Antonio San Antonio	5h 49m layover 0h 51m - San Francisco	United Airlines	UA277 UA5468
from $228 Find flight	05:05 Ontario Ontario Int.	13:10 San Antonio San Antonio	6h 5m layover 1h 30m - Denver	United Airlines	UA1575 UA1131
from $239 Find flight	05:10 Ontario Ontario Int.	16:40 San Antonio San Antonio	9h 30m layover 4h 57m - Denver	United Airlines	UA2317 UA1022
from $266 Find flight	11:57 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	24h 10m layover 17h 15m - Seattle	Alaska Airlines	AS1255 AS494
from $231 Find flight	17:44 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	18h 23m layover 0h 57m - Portland 10h 1m - Seattle	Alaska Airlines	AS3498 AS2113 AS494
from $236 Find flight	17:44 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	18h 23m layover 9h 55m - Portland 0h 53m - Seattle	Alaska Airlines	AS3498 AS124 AS494
from $236 Find flight	11:45 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	24h 22m layover 15h 52m - Portland 0h 47m - Seattle	Alaska Airlines	AS3312 AS124 AS494
from $266 Find flight	11:45 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	24h 22m layover 1h 42m - Portland 15h 4m - Seattle	Alaska Airlines	AS3312 AS2102 AS494
from $266 Find flight	11:45 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	24h 22m layover 0h 42m - Portland 15h 58m - Seattle	Alaska Airlines	AS3312 AS3358 AS494

Show all tickets

*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on January 21, 2025

Flight Schedule Ontario (California) to San Antonio (Texas)

Full flight schedule will help you in detecting at what time planes fly from Ontario to San Antonio. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
00:49 — 08:19	06:30 — 09:54 F91500 Frontier Airlines Ontario — Denver 56m stop 07:10 — 10:29 F92356 Frontier Airlines Denver — San Antonio	5h 30m including layover	Find flight from$76
05:05 — 13:10	05:05 — 08:24 UA1575 United Airlines Ontario — Denver 1h 30m stop 09:54 — 13:10 UA1131 United Airlines Denver — San Antonio	6h 5m including layover	Find flight from$228
05:10 — 13:21	05:10 — 08:29 UA2317 United Airlines Ontario — Denver 1h 36m stop 10:05 — 13:21 UA1131 United Airlines Denver — San Antonio	6h 11m including layover	Find flight from$205
06:00 — 13:24	06:00 — 11:03 UA2360 United Airlines Ontario — Houston 1h 9m stop 12:12 — 13:24 UA492 United Airlines Houston — San Antonio	5h 24m including layover	Find flight from$205
06:00 — 15:42	06:00 — 11:03 UA2360 United Airlines Ontario — Houston 3h 27m stop 14:37 — 15:49 UA2399 United Airlines Houston — San Antonio	7h 42m including layover	Find flight from$205
10:39 — 18:39	10:39 — 12:20 UA4639 United Airlines Ontario — San Francisco 35m stop 12:55 — 18:39 UA5435 United Airlines San Francisco — San Antonio	6h including layover	Find flight from$205
13:45 — 21:03	13:45 — 17:04 UA2278 United Airlines Ontario — Denver 45m stop 17:49 — 21:03 UA1762 United Airlines Denver — San Antonio	5h 18m including layover	Find flight from$205
13:45 — 13:21 +1 day	13:45 — 17:04 UA2278 United Airlines Ontario — Denver 17h 1m stop 10:05 — 13:21 UA1131 United Airlines Denver — San Antonio	21h 36m including layover	Find flight from$310
16:20 — 14:07 +1 day	13:53 — 16:46 AS1119 Alaska Airlines Ontario — Seattle 12h 49m stop 12:29 — 18:25 AS494 Alaska Airlines Seattle — San Antonio	19h 47m including layover	Find flight from$329
19:14 — 14:07 +1 day	18:30 — 21:15 AS1399 Alaska Airlines Ontario — Seattle 9h 59m stop 12:28 — 18:25 AS494 Alaska Airlines Seattle — San Antonio	16h 53m including layover	Find flight from$303
20:27 — 08:19 +1 day	18:13 — 21:35 F92908 Frontier Airlines Ontario — Denver 5h 7m stop 07:45 — 11:04 F92356 Frontier Airlines Denver — San Antonio	9h 52m including layover	Find flight from$82
20:56 — 09:00 +1 day	20:33 — 01:32 Y41863 Volaris Ontario — Guadalajara 5h 9m stop 07:04 — 09:00 Y41750 Volaris Guadalajara — San Antonio	10h 4m including layover	Find flight from$301
00:58 — 16:02	00:58 — 05:57 Y41861 Volaris Ontario — Guadalajara 5h 21m stop 11:23 — 13:00 AM221 Aeromexico Guadalajara — Mexico City 55m stop 13:50 — 16:02 AM634 Aeromexico Mexico City — San Antonio	13h 4m including layover	Find flight from$351
10:39 — 21:03	10:39 — 12:20 UA4639 United Airlines Ontario — San Francisco 35m stop 12:55 — 16:35 UA1791 United Airlines San Francisco — Denver 1h 14m stop 17:49 — 21:03 UA1762 United Airlines Denver — San Antonio	8h 24m including layover	Find flight from$464
11:45 — 14:07 +1 day	11:14 — 13:38 AS3312 Alaska Airlines Ontario — Portland 15h 52m stop 06:05 — 07:08 AS124 Alaska Airlines Portland — Seattle 47m stop 08:01 — 14:07 AS494 Alaska Airlines Seattle — San Antonio	24h 22m including layover	Find flight from$236
11:45 — 14:07 +1 day	11:14 — 13:38 AS3312 Alaska Airlines Ontario — Portland 1h 42m stop 16:30 — 17:29 AS2102 Alaska Airlines Portland — Seattle 15h 4m stop 08:01 — 14:07 AS494 Alaska Airlines Seattle — San Antonio	24h 22m including layover	Find flight from$266
17:44 — 14:07 +1 day	17:44 — 20:10 AS3498 Alaska Airlines Ontario — Portland 57m stop 21:07 — 22:00 AS2113 Alaska Airlines Portland — Seattle 10h 1m stop 08:01 — 14:07 AS494 Alaska Airlines Seattle — San Antonio	18h 23m including layover	Find flight from$231
17:44 — 14:07 +1 day	17:44 — 20:10 AS3498 Alaska Airlines Ontario — Portland 9h 55m stop 06:05 — 07:08 AS124 Alaska Airlines Portland — Seattle 53m stop 08:01 — 14:07 AS494 Alaska Airlines Seattle — San Antonio	18h 23m including layover	Find flight from$236
22:30 — 15:30 +1 day	22:30 — 05:05 AV531 Avianca Ontario — San Salvador 4h stop 09:05 — 11:20 AV430 Avianca San Salvador — Mexico City 2h 10m stop 13:30 — 15:30 VB164 VivaAerobus Mexico City — San Antonio	15h including layover	Find flight from$604
22:30 — 16:02 +1 day	22:30 — 05:05 AV531 Avianca Ontario — San Salvador 4h stop 09:05 — 11:20 AV430 Avianca San Salvador — Mexico City 2h 30m stop 13:50 — 16:02 AM634 Aeromexico Mexico City — San Antonio	15h 32m including layover	Find flight from$621

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

*Departure and arrival times - local. Updated on January 21, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Ontario to San Antonio depends on and how to choose the most interesting flight option for you.

Distance between Ontario and San Antonio is 1873 miles. Time difference between the cities is 2h. Airplanes depart 00:49 to 22:30 from 2 Ontario airports and arrive 00:49 to 22:30 to 5 San Antonio airports. Average flight time is 13h 11m.

The fastest flight 5h 18m
Average flight time 13h 11m
The earliest flight 00:49
The latest flight 22:30
Distance 1164 ml

The cheapest months to travel to San Antonio are november (from 49 $), february (from 76 $), january (from 205 $).

The most expensive months are december (from 385 $), january (from 205 $), february (from 76 $).

What is the lowest airfare Ontario to San Antonio?

The cheapest plane ticket found by our users is $76. This airfare is for economy class on one-way F91500 flight by Frontier Airlines for February 21, 2025 which leaves Ontario Int. in Ontario at 00:49 am and arrives at San Antonio San Antonio at 08:19.

Economy class

$76

Find

Business class

Find

First class

Find

Popular Airlines on the Route

The flight Ontario — San Antonio is served by 5 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 13 departures per week at the price of from $ 231 . And the most expensive tickets are offered by Volaris airline - from $ 720.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 52 flights with layovers on the route. The fastest connecting flight is UA2278 by United Airlines takes 5h 18m and the cheapest is F91500 by Frontier Airlines for $76.

AS - Alaska Airlines

from $231

Find
F9 - Frontier Airlines

from $76

Find
Y4 - Volaris

from $301

Find
UA - United Airlines

from $205

Find
AV - Avianca

from $604

Find

See more connecting flights

Airports

You can fly from Ontario to San Antonio from 2 airports (Ontario Int., International Heliport).

Ontario airports

Ontario Int.-ONT

from $76
Find
International Heliport-JIO

Find

San Antonio airports

Randolph AFB-RND

Find
Martindale AAF-MDA

Find
San Antonio-SAT

Find
Kelly AFB-SKF

Find
Stinson Municipal-SSF

Find

Airplanes

There are flights to San Antonio from Ontario by 5 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Ontario

You may also consider searching for discounted plane tickets to some other popular places from Ontario within United States.

Ontario — Tampa

from $54

Find
Ontario — Pittsburgh

from $70

Find
Ontario — Indianapolis

from $62

Find
Ontario — Cleveland

from $63

Find
Ontario — Norfolk

from $79

Find
Ontario — Tucson

from $80

Find
Ontario — New Orleans

from $63

Find
Ontario — San Jose

from $61

Find
Ontario — Honolulu

from $63

Find
Ontario — Austin

from $67

Find

Top International Destinations from Ontario

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Ontario — San Jose

from $61

Find
Ontario — Guadalajara

from $70

Find
Ontario — Mexico City

from $58

Find
Ontario — Cancun

from $74

Find
Ontario — Toronto

from $70

Find
Ontario — London

from $62

Find
Ontario — Vancouver

from $61

Find

How to book a plane 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 flight ticket.
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.