$98+ Cheap flights from San Antonio to Ontario (SAT - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ONT
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Antonio to Ontario
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Cheapest flights from San Antonio to OntarioExplore the most affordable flight options available from San Antonio to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from San Antonio to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:44 pm -
1 stop22h 32m
Sat 11/212:01 pm -
1 stop5h 15m
Deal found 10/21![Frontier logo]()
$192
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:44 pm -
1 stop5h 36m
Sat 12/52:53 pm -
1 stop5h 04m
Deal found 10/22![Frontier logo]()
$194
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1210:52 pm -
1 stop21h 39m
Thu 12/1710:30 pm -
1 stop10h 23m
Deal found 10/21![Frontier logo]()
$197
This Booking.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:47 pm -
1 stop5h 30m
Tue 12/88:44 am -
1 stop11h 13m
Deal found 10/24![Frontier logo]()
$199
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:11 pm -
1 stop23h 25m
Fri 11/278:15 am -
1 stop11h 01m
Deal found 10/21![Frontier logo]()
$200
This Booking.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:29 pm -
1 stop12h 36m
Mon 11/168:35 pm -
1 stop22h 59m
Deal found 10/23![Frontier logo]()
$203
This Booking.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2110:11 pm -
1 stop15h 28m
Tue 11/242:01 pm -
1 stop5h 15m
Deal found 10/20![Frontier logo]()
$206
This Booking.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:11 pm -
1 stop16h 37m
Thu 11/2610:40 pm -
1 stop20h 36m
Deal found 10/21![Frontier logo]()
$208
This Expedia deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:20 pm -
1 stop5h 31m
Tue 11/105:07 pm -
1 stop26h 27m
Deal found 10/20![Frontier logo]()
$220
This Cheapflightsfares deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:29 pm -
1 stop13h 11m
Tue 11/175:07 pm -
1 stop26h 27m
Deal found 10/20![Frontier logo]()
$221
This Booking.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:20 pm -
1 stop5h 31m
Wed 11/1810:35 am -
1 stop8h 59m
Deal found 10/22![Frontier logo]()
$222
Best flights from San Antonio to OntarioDiscover carefully curated flight deals from San Antonio to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from San Antonio to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:11 pm -
1 stop23h 25m
Mon 11/302:01 pm -
1 stop27h 07m
Deal found 10/24![Frontier logo]()
$237
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:01 am -
2 stops10h 23m
Fri 11/275:00 am -
1 stop5h 46m
Deal found 10/23![United Airlines logo]()
$379
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/171:34 pm -
1 stop10h 01m
Wed 12/2311:42 am -
1 stop5h 53m
Deal found 10/22![Frontier logo]()
$246
This Frontier deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/78:24 pm -
1 stop5h 51m
Fri 1/226:30 am -
1 stop10h 57m
Deal found 10/24![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/48:41 pm -
1 stop5h 36m
Sun 12/66:00 am -
1 stop12h 02m
Deal found 10/24![Frontier logo]()
$275
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/55:59 pm -
1 stop6h 16m
Tue 1/125:00 am -
2 stops8h 30m
Deal found 10/23![United Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:30 am -
3 stops14h 31m
Wed 11/115:00 am -
1 stop5h 46m
Deal found 10/23![United Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:20 am -
1 stop7h 09m
Thu 11/265:00 am -
1 stop5h 47m
Deal found 10/22![United Airlines logo]()
$445
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:30 am -
3 stops14h 31m
Sat 11/216:00 am -
1 stop7h 38m
Deal found 10/24![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:30 am -
3 stops14h 31m
Tue 11/249:25 am -
2 stops11h 26m
Deal found 10/20![United Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:30 am -
2 stops8h 59m
Wed 11/256:00 am -
1 stop7h 38m
Deal found 10/24![United Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:15 am -
3 stops14h 21m
Sat 12/511:20 am -
2 stops9h 44m
Deal found 10/22![United Airlines logo]()
$540
Last-minute flights from San Antonio to OntarioDiscover last-minute flight deals from San Antonio to Ontario. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Ontario. Data last updated October 25, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:20 pm -
1 stop5h 31m
Tue 11/105:07 pm -
1 stop26h 27m
Deal found 10/20![Frontier logo]()
$220
This Cheapflightsfares deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:29 pm -
1 stop13h 11m
Tue 11/175:07 pm -
1 stop26h 27m
Deal found 10/20![Frontier logo]()
$221
This Booking.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:20 pm -
1 stop5h 31m
Wed 11/1810:35 am -
1 stop8h 59m
Deal found 10/22![Frontier logo]()
$222
This Booking.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:20 pm -
1 stop5h 31m
Mon 11/168:35 pm -
1 stop22h 59m
Deal found 10/22![Frontier logo]()
$227
This Booking.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:29 pm -
1 stop12h 36m
Mon 11/168:35 pm -
1 stop22h 59m
Deal found 10/23![Frontier logo]()
$203
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:44 pm -
1 stop22h 32m
Sat 11/212:01 pm -
1 stop5h 15m
Deal found 10/21![Frontier logo]()
$192
This Booking.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2110:11 pm -
1 stop15h 28m
Tue 11/242:01 pm -
1 stop5h 15m
Deal found 10/20![Frontier logo]()
$206
This Frontier deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:11 pm -
1 stop11h 09m
Thu 11/268:15 am -
1 stop5h 03m
Deal found 10/21![Frontier logo]()
$223
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:11 pm -
1 stop23h 25m
Fri 11/278:15 am -
1 stop11h 01m
Deal found 10/21![Frontier logo]()
$200
This Booking.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:11 pm -
1 stop16h 37m
Thu 11/2610:40 pm -
1 stop20h 36m
Deal found 10/21![Frontier logo]()
$208
One-way flights from San Antonio to OntarioSearch for one-way flight options from San Antonio to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from San Antonio to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Super.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:11 pm -
1 stop23h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$98
This Super.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:20 pm -
1 stop5h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$99
This Booking.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:20 pm -
1 stop5h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:52 pm -
1 stop14h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$103
This Super.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:44 pm -
1 stop22h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:11 pm -
1 stop11h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Frontier logo]()
$106
This Gotogate deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:20 pm -
1 stop5h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$114
This Super.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:20 pm -
1 stop5h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:20 pm -
1 stop5h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$121
This Frontier deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/308:28 pm -
1 stop5h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$123
This Booking.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:20 pm -
1 stop5h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$124
Find flight deals from San Antonio to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $192 (Cheapflightsfares) |
One-way from | $98 (Super.com) |
Popular in | June |
Cheapest in | November |
Average price | $384 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from San Antonio to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Mon 11/9
8:20 pm-10:35 am
1 stop16h 15m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$117
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Thu 11/26
12:45 pm-6:30 pm
1 stop7h 45m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$153
Quickest round-trip
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Sat 11/21
8:55 pm-11:45 pm
1 stop4h 50m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$153
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Mon 11/9
6:45 pm-11:40 pm
2 stops6h 55m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$158
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Fri 12/18
11:48 am-9:53 pm
1 stop12h 05m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$182
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Sat 11/28
10:11 pm-8:30 am
1 stop12h 19m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$201
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Tue 11/17
5:30 am-6:01 pm
3 stops14h 31m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$218
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Wed 11/25
10:11 pm-7:36 pm
1 stop23h 25m
Ontario
Mon 11/30
2:01 pm-7:08 pm
1 stop27h 07m
$237
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Mon 11/23
11:45 am-10:48 pm
2 stops13h 03m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$245
San AntonioOntario
SAT San Antonio - ONT Ontario
SATONT
San Antonio
Thu 12/17
1:34 pm-9:35 pm
1 stop10h 01m
Ontario
Wed 12/23
11:42 am-7:35 pm
1 stop5h 53m
$246
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from San Antonio to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Ontario in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Antonio-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Antonio to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from San Antonio with our price prediction graph.
SAT-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Antonio to Ontario
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How far ahead should I book a flight from San Antonio to Ontario?
Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from San Antonio to Ontario?
Currently, November is the cheapest month in which you can book a flight from San Antonio to Ontario (average of $272). Flying from San Antonio to Ontario in June is currently the most expensive (average of $416). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from San Antonio to Ontario?
Airfare is below average for this route at the moment.
San Antonio to Ontario flights typically cost between $248 and $446 in November.The cheapest round-trip price found within the last 5 days was $192 on Frontier (Nov 14-Nov 21).
What’s the top layover airport for flights from San Antonio to Ontario?
Share of 1-stop round-trip flights from San Antonio to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 60% of 1-stop itineraries from San Antonio to Ontario on Cheapflights.
What’s the cheapest layover airport for flights from San Antonio to Ontario?
Average round-trip fare for 1-stop flights from San Antonio to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $246.
What’s the fastest layover option from San Antonio to Ontario?
Shortest average travel time for 1-stop one-way flights from San Antonio to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 4h 52m.
Which airport typically offers the quickest layover for flights from San Antonio to Ontario?
Average layover duration for 1-stop one-way flights from San Antonio to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 1h 10m.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated October 25, 2026.
Read through reviews of airlines operating flights from San Antonio to Ontario, such as Southwest,American Airlines, andFrontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.4
Comfort
8.0
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Entertainment
7.4
Comfort
8.0
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Entertainment
7.4
Comfort
8.0
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Entertainment
7.4
Comfort
8.0
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from San Antonio to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
San Antonio and Ontario flights
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Top 3 airlines flying from San Antonio to Ontario
Discover the top 3 airlines that operate flights from San Antonio to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$143 | Average$323 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$273 | Average$404 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$341 | Average$449 | FlexibilityNo cancel fee | On-time63% |