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San Antonio

$126+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SAT
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/14. 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.
Sun 12/212:13 pmYUL - SAT
2 stops19h 37mUnited Airlines
Wed 1/77:20 pmSAT - YUL
2 stops18h 56mUnited Airlines
Deal found 12/14$524
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Thu 12/187:00 amYUL - SAT
1 stop9h 03mUnited Airlines
Thu 1/87:00 amSAT - YUL
1 stop6h 00mUnited Airlines
Deal found 12/14$536
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2011:38 amYYZ - SAT
1 stop13h 21mAmerican Airlines
Tue 12/306:44 amSAT - YYZ
1 stop15h 00mAmerican Airlines
Deal found 12/13$551
This Air Canada deal was found by Cheapflights users on 12/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:00 pmYUL - SAT
1 stop15h 50mAir Canada
Thu 1/89:50 amSAT - YUL
1 stop6h 00mAir Canada
Deal found 12/14$553
This American Airlines deal was found by Cheapflights users on 12/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/184:44 pmYYZ - SAT
1 stop7h 09mAmerican Airlines
Tue 12/306:44 amSAT - YYZ
1 stop15h 00mAmerican Airlines
Deal found 12/14$556
This Air Canada deal was found by Cheapflights users on 12/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:00 pmYUL - SAT
1 stop15h 50mAir Canada
Wed 1/79:00 amSAT - YUL
2 stops10h 45mAir Canada
Deal found 12/14$558
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:10 amYUL - SAT
1 stop11h 05mDelta
Tue 1/66:30 amSAT - YUL
1 stop6h 12mDelta
Deal found 12/14$564
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Sun 12/212:13 pmYUL - SAT
2 stops19h 37mUnited Airlines
Mon 1/55:59 pmSAT - YUL
2 stops12h 46mUnited Airlines
Deal found 12/14$577
This United Airlines deal was found by Cheapflights users on 12/13. 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 12/193:45 pmYYZ - SAT
1 stop8h 03mUnited Airlines
Thu 12/2512:25 pmSAT - YYZ
1 stop5h 32mUnited Airlines
Deal found 12/13$581
This Kiwi.com deal was found by Cheapflights users on 12/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:00 amYUL - SAT
1 stop8h 00mWestJet
Sun 12/144:52 pmSAT - YUL
1 stop6h 07mWestJet
Deal found 12/12$585
This Air Canada deal was found by Cheapflights users on 12/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:30 pmYUL - SAT
2 stops15h 41mAir Canada
Thu 1/88:30 amSAT - YUL
1 stop7h 28mAir Canada
Deal found 12/14$589
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2011:38 amYYZ - SAT
1 stop13h 21mAmerican Airlines
Thu 12/259:12 amSAT - YYZ
1 stop6h 07mAmerican Airlines
Deal found 12/13$592

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 December 15, 2025.

Round-trip from

$219
(Kiwi.com)

One-way from

$126
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$609
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 ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 15, 2025.
Use the filters below to find and compare flights from Ontario to San Antonio that are best for you.

Fly from

Ontario

Fly to

San Antonio

Route

Depart

Return

Price

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Thu 2/19

8:30 pm-9:30 am

1 stop14h 00m

San Antonio

Mon 2/23

1:57 pm-2:16 pm

1 stop23h 19m

$267

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Thu 1/29

7:00 am-9:40 am

1 stop27h 40m

San Antonio

Thu 2/5

10:35 am-12:25 am

1 stop12h 50m

$295

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Tue 3/10

3:40 pm-9:30 am

1 stop18h 50m

San Antonio

Tue 3/17

10:26 am-11:20 pm

1 stop11h 54m

$297

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Thu 1/29

5:11 pm-11:13 pm

1 stop7h 02m

San Antonio

Thu 2/5

11:43 am-9:56 pm

2 stops9h 13m

$304

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Mon 1/26

5:55 pm-8:41 am

2 stops15h 46m

San Antonio

Fri 1/30

2:05 pm-9:18 pm

1 stop6h 13m

$304

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Mon 1/12

7:10 am-11:52 pm

1 stop17h 42m

San Antonio

Mon 1/19

10:35 am-11:20 pm

1 stop11h 45m

$310

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Sun 1/11

7:00 am-9:40 am

1 stop27h 40m

San Antonio

Sun 1/18

10:35 am-5:25 pm

1 stop29h 50m

$311

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Sat 1/10

8:30 pm-9:40 am

1 stop14h 10m

San Antonio

Sat 1/17

6:30 am-12:11 am

1 stop16h 41m

$316

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Fri 1/9

7:10 am-11:52 pm

1 stop17h 42m

San Antonio

Fri 1/16

4:25 pm-6:13 am

2 stops12h 48m

$326

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Fri 1/23

5:25 pm-9:40 am

2 stops17h 15m

San Antonio

Fri 1/30

10:35 am-4:22 pm

1 stop28h 47m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 51 results
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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 $175). Flying from Region of Ontario to San Antonio in August is currently the most expensive (average of $385). 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.

What is the cheapest time of day to fly from ON to SAT?

Find hourly flight availability from Ontario to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

One of the essential ways to save on airfare from Region of Ontario to San Antonio is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 41% on airfare.

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 and Air Canada can get you from Region of Ontario to San Antonio in just under 7h 02m. Your travel time can differ by up to 4h 29m. There are 1648 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 American Airlines ($164), Delta ($178), and United Airlines ($215).

  • 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 $175). Flying from Region of Ontario to San Antonio in August is currently the most expensive (average of $385). 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

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Alternative routes for Ontario to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$264Average$365FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$281Average$386FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$292Average$463FlexibilityNo cancel feeOn-time71%
WestJetCheapest$332Average$551FlexibilityNo cancel feeOn-time60%

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