Cheap Flights from Ontario, CA to San Antonio, TX from $52

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On Cheapflightsplus.com you will find 19 connecting flights from Ontario to San Antonio. You can compare airfare deals from 4 airlines and multiple travel sites from $52, 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: $52 (one-way), $89 (round-trip).

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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 $52. Take a look at the list of flights with layovers from Ontario to San Antonio from $52. There’re no direct flights. The fastest connecting flight – 5h 27m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $52 Find flight	00:49 Ontario Ontario Int.	08:19 San Antonio San Antonio	5h 30m layover 0h 56m - Denver	Frontier Airlines	F91500 F92356
from $87 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 $243 Find flight	06:00 Ontario Ontario Int.	13:27 San Antonio San Antonio	5h 27m layover 1h 13m - Houston	United Airlines	UA722 UA2378
from $243 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 $243 Find flight	05:05 Ontario Ontario Int.	13:10 San Antonio San Antonio	6h 5m layover 1h 30m - Denver	United Airlines	UA1575 UA1131
from $283 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 $301 Find flight	05:05 Ontario Ontario Int.	16:55 San Antonio San Antonio	9h 50m layover 5h 16m - Denver	United Airlines	UA1575 UA1022
from $320 Find flight	20:56 Ontario Ontario Int.	09:00+1 день San Antonio San Antonio	10h 4m layover 5h 9m - Guadalajara	Volaris	Y41863 Y41750
from $323 Find flight	19:14 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	16h 53m layover 9h 59m - Seattle	Alaska Airlines	AS1399 AS494
from $337 Find flight	16:20 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	19h 47m layover 12h 49m - Seattle	Alaska Airlines	AS1119 AS494
from $251 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 $283 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 $283 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
from $308 Find flight	11:45 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	24h 22m layover 2h 57m - Portland 13h 49m - Seattle	Alaska Airlines	AS3312 AS2082 AS494
from $329 Find flight	17:44 Ontario Ontario Int.	14:07+1 день San Antonio San Antonio	18h 23m layover 10h 2m - Portland 0h 47m - Seattle	Alaska Airlines	AS2202 AS124 AS494
from $371 Find flight	20:56 Ontario Ontario Int.	16:02+1 день San Antonio San Antonio	17h 6m layover 6h 8m - Guadalajara 4h 10m - Mexico City	Volaris	Y41863 AM209 AM634

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on February 23, 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$52
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$243
05:05 — 16:55	05:05 — 08:24 UA1575 United Airlines Ontario — Denver 5h 16m stop 13:40 — 16:55 UA1022 United Airlines Denver — San Antonio	9h 50m including layover	Find flight from$301
06:00 — 13:27	06:00 — 11:02 UA722 United Airlines Ontario — Houston 1h 13m stop 12:15 — 13:27 UA2378 United Airlines Houston — San Antonio	5h 27m including layover	Find flight from$243
06:00 — 13:49	06:00 — 07:29 UA277 United Airlines Ontario — San Francisco 51m stop 08:20 — 13:49 UA5468 United Airlines San Francisco — San Antonio	5h 49m including layover	Find flight from$243
11:57 — 14:07 +1 day	11:29 — 14:18 AS1255 Alaska Airlines Ontario — Seattle 17h 15m stop 12:28 — 18:25 AS494 Alaska Airlines Seattle — San Antonio	24h 10m including layover	Find flight from$283
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$337
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$323
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$87
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$320
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$374
00:58 — 16:02	00:58 — 05:57 Y41861 Volaris Ontario — Guadalajara 3h 16m stop 09:13 — 10:50 AM213 Aeromexico Guadalajara — Mexico City 3h stop 13:50 — 16:02 AM634 Aeromexico Mexico City — San Antonio	13h 4m including layover	Find flight from$379
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$251
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$283
11:45 — 14:07 +1 day	11:14 — 13:38 AS3312 Alaska Airlines Ontario — Portland 42m stop 15:00 — 16:00 AS3358 Alaska Airlines Portland — Seattle 15h 58m stop 08:01 — 14:07 AS494 Alaska Airlines Seattle — San Antonio	24h 22m including layover	Find flight from$283
11:45 — 14:07 +1 day	11:14 — 13:38 AS3312 Alaska Airlines Ontario — Portland 2h 57m stop 18:26 — 19:26 AS2082 Alaska Airlines Portland — Seattle 13h 49m stop 08:01 — 14:07 AS494 Alaska Airlines Seattle — San Antonio	24h 22m including layover	Find flight from$308
17:44 — 14:07 +1 day	17:44 — 20:08 AS2202 Alaska Airlines Ontario — Portland 10h 2m stop 06:10 — 07:12 AS124 Alaska Airlines Portland — Seattle 47m stop 07:59 — 14:07 AS494 Alaska Airlines Seattle — San Antonio	18h 23m including layover	Find flight from$329
20:56 — 16:02 +1 day	20:56 — 01:55 Y41863 Volaris Ontario — Guadalajara 6h 8m stop 08:03 — 09:40 AM209 Aeromexico Guadalajara — Mexico City 4h 10m stop 14:10 — 16:22 AM634 Aeromexico Mexico City — San Antonio	17h 6m including layover	Find flight from$371
20:56 — 16:02 +1 day	20:56 — 01:55 Y41863 Volaris Ontario — Guadalajara 4h 8m stop 06:03 — 07:40 AM201 Aeromexico Guadalajara — Mexico City 6h 10m stop 13:50 — 16:02 AM634 Aeromexico Mexico City — San Antonio	17h 6m including layover	Find flight from$766

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

*Departure and arrival times - local. Updated on February 23, 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 20:56 from 2 Ontario airports and arrive 00:49 to 20:56 to 5 San Antonio airports. Average flight time is 16h 53m.

The fastest flight 5h 27m
Average flight time 16h 53m
The earliest flight 00:49
The latest flight 20:56
Distance 1164 ml

The cheapest months to travel to San Antonio are november (from 52 $), february (from 81 $), january (from 251 $).

The most expensive months are december (from 410 $), january (from 251 $), february (from 81 $).

What is the lowest airfare Ontario to San Antonio?

The cheapest plane ticket found by our users is $52. 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

$52

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Popular Airlines on the Route

The flight Ontario — San Antonio is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 8 departures per week at the price of from $ 251 . And the most expensive tickets are offered by Volaris airline - from $ 766.

Direct flights

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

Connecting Flights

There are 19 flights with layovers on the route. The fastest connecting flight is UA722 by United Airlines takes 5h 27m and the cheapest is F91500 by Frontier Airlines for $52.

AS - Alaska Airlines

from $251

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F9 - Frontier Airlines

from $52

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Y4 - Volaris

from $320

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UA - United Airlines

from $243

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Airports

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

Ontario airports

Ontario Int.-ONT

from $52
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International Heliport-JIO

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San Antonio airports

Randolph AFB-RND

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Martindale AAF-MDA

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San Antonio-SAT

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Kelly AFB-SKF

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Stinson Municipal-SSF

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Airplanes

There are flights to San Antonio from Ontario by 4 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

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Ontario — Cleveland

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Ontario — New Orleans

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Ontario — San Jose

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Ontario — Honolulu

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Ontario — Austin

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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

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Ontario — Guadalajara

from $70

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Ontario — Mexico City

from $58

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Ontario — Cancun

from $74

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Ontario — Toronto

from $70

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Ontario — London

from $62

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Ontario — Vancouver

from $61

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How to book a plane ticket yourself?

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