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San Antonio

$156+ Cheap flights from Ontario to San Antonio (SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SAT
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap flight deals from Ontario to San Antonio

Cheapest flights from Ontario to San Antonio
Explore the most affordable flight options available from Ontario to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This American Airlines deal was found by Cheapflights users on 3/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/34:30 pm
YYZ
-
SAT
1 stop7h 25m
American Airlines
Wed 4/86:20 am
SAT
-
YYZ
1 stop9h 25m
American Airlines
Deal found 3/12$261
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:15 pm
YYZ
-
SAT
1 stop6h 41m
American Airlines
Wed 5/66:20 am
SAT
-
YYZ
1 stop9h 25m
American Airlines
Deal found 3/11$277
This United Airlines deal was found by Cheapflights users on 3/13. 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.
Fri 7/2410:44 am
YOW
-
SAT
1 stop6h 19m
United Airlines
Tue 7/285:57 pm
SAT
-
YOW
2 stops19h 02m
United Airlines
Deal found 3/13$295
This United Airlines deal was found by Cheapflights users on 3/14. 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.
Fri 4/1010:44 am
YOW
-
SAT
1 stop13h 14m
United Airlines
Sun 5/107:00 am
SAT
-
YOW
1 stop15h 54m
United Airlines
Deal found 3/14$307
This United Airlines deal was found by Cheapflights users on 3/14. 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 4/116:25 am
YOW
-
SAT
1 stop13h 34m
United Airlines
Wed 4/157:15 am
SAT
-
YOW
1 stop10h 40m
United Airlines
Deal found 3/14$308
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:10 am
YYZ
-
SAT
1 stop30h 17m
Multiple Airlines
Tue 4/1410:22 am
SAT
-
YYZ
1 stop26h 43m
Multiple Airlines
Deal found 3/14$322
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:10 am
YYZ
-
SAT
1 stop30h 17m
Multiple Airlines
Wed 4/810:22 am
SAT
-
YYZ
1 stop11h 58m
Multiple Airlines
Deal found 3/14$327
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:30 pm
YYZ
-
SAT
1 stop7h 25m
American Airlines
Sat 4/115:00 am
SAT
-
YYZ
1 stop16h 55m
American Airlines
Deal found 3/11$336
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:30 pm
YYZ
-
SAT
2 stops8h 29m
American Airlines
Wed 4/15:53 pm
SAT
-
YYZ
1 stop16h 20m
American Airlines
Deal found 3/11$337
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:10 am
YYZ
-
SAT
1 stop30h 17m
Multiple Airlines
Sat 4/111:22 pm
SAT
-
YYZ
1 stop8h 13m
Multiple Airlines
Deal found 3/14$340
This American Airlines deal was found by Cheapflights users on 3/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:59 am
YYZ
-
SAT
2 stops12h 55m
American Airlines
Wed 4/86:20 am
SAT
-
YYZ
1 stop9h 25m
American Airlines
Deal found 3/12$347
This United Airlines deal was found by Cheapflights users on 3/13. 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 4/142:20 pm
YUL
-
SAT
1 stop7h 20m
United Airlines
Sat 4/189:40 am
SAT
-
YUL
2 stops11h 26m
United Airlines
Deal found 3/13$371

Find flight deals from Ontario to San Antonio

Keep the following information in mind while searching for Ontario to San Antonio flight deals. Data was last updated March 16, 2026.

Round-trip from

$261
(American Airlines)

One-way from

$156
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$494
From Ontario to San Antonio
Search Deals
One-way flight from Ontario to San Antonio
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to San Antonio 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 2,558,603 searches. Data last updated March 16, 2026.
Use the filters below to find and compare flights from Ontario to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Fri 7/24

10:44 am-4:03 pm

1 stop6h 19m

San Antonio

Tue 7/28

5:57 pm-1:59 pm

2 stops19h 02m

$295

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Fri 4/10

10:44 am-10:58 pm

1 stop13h 14m

San Antonio

Sun 5/10

7:00 am-11:54 pm

1 stop15h 54m

$307

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Wed 4/29

10:00 am-5:43 pm

2 stops8h 43m

San Antonio

Wed 5/6

5:34 pm-10:03 am

2 stops15h 29m

$308

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Sat 4/11

10:44 am-7:48 pm

2 stops10h 04m

San Antonio

Wed 4/15

6:49 am-10:05 pm

2 stops14h 16m

$308
Quickest round-trip

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Fri 7/24

6:08 pm-11:12 pm

1 stop6h 04m

San Antonio

Tue 7/28

5:20 am-11:27 am

1 stop5h 07m

$369

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

6:10 am-12:24 pm

1 stop7h 14m

San Antonio

Sat 4/18

7:15 am-12:13 am

1 stop15h 58m

$371

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Sat 5/2

9:45 am-10:54 pm

1 stop14h 09m

San Antonio

Thu 5/7

7:00 am-2:40 pm

1 stop6h 40m

$385

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 4/28

5:00 pm-10:58 pm

1 stop6h 58m

San Antonio

Thu 4/30

7:00 am-12:13 am

1 stop16h 13m

$385

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Mon 3/30

4:55 pm-10:53 pm

1 stop6h 58m

San Antonio

Tue 4/7

6:49 am-7:45 pm

2 stops11h 56m

$385

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 3/31

9:45 am-5:43 pm

2 stops8h 58m

San Antonio

Tue 4/7

7:00 am-4:10 pm

1 stop8h 10m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 54 resultsSorted by cheapest first
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Best time to book a flight from Ontario to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Ontario with our price prediction graph.
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 Ontario to San Antonio

What is the cheapest month to book a flight from Region of Ontario to San Antonio?

Currently, October is the cheapest month in which you can book a flight from Region of Ontario to San Antonio (average of $168). Flying from Region of Ontario to San Antonio in November is currently the most expensive (average of $374). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Antonio from Ontario?

    Most people fly into San Antonio (SAT) if they book a flight to San Antonio from Ontario. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • How long is the flight from Region of Ontario to San Antonio?

    United Airlines, WestJet, and Air Canada can get you from Region of Ontario to San Antonio in just under 6h 04m. Your travel time can differ by up to 8h 24m. There are 1424 mi between Region of Ontario and San Antonio. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Region of Ontario to San Antonio one-way?

    The cheapest airlines for a one-way flight from Region of Ontario to San Antonio are Air Canada ($177), American Airlines ($177), and Delta ($201).

  • What are the most popular routes from Region of Ontario to San Antonio?

    When deciding which route to take from Region of Ontario to San Antonio consider Toronto Pearson Intl - San Antonio, Montreal Pierre Elliott Trudeau Intl - San Antonio or Toronto Island - San Antonio as they are the most popular.

  • Can I find deals for flights from Ontario to San Antonio that include hotel bookings?

    Yes. In addition to deals on Ontario to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to San Antonio.

  • Can I find deals for business class flights from Ontario to San Antonio?

    Yes. Cheapflights offers flight deals from Ontario to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Region of Ontario to San Antonio?

    Currently, October is the cheapest month in which you can book a flight from Region of Ontario to San Antonio (average of $168). Flying from Region of Ontario to San Antonio in November is currently the most expensive (average of $374). 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.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Ontario to San Antonio

Discover the top 4 airlines that operate flights from Ontario to San Antonio. 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 2,558,603 searches. Data last updated March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$264Average$444FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$292Average$486FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$292Average$387FlexibilityNo cancel feeOn-time69%
WestJetCheapest$360Average$565FlexibilityNo cancel feeOn-time60%

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