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Cheap flights from Ontario to San Antonio from C$ 215

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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SAT
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap 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 11 September 2025.

Round-trip from

C$ 389

One-way from

C$ 215

Popular in

August

Cheapest in

February

Average price

C$ 524
23/10-28/10
  • 23/10-28/10
  • 3 total stops
  • 50h 31m total
  • Ontario to San Antonio
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10/11
  • 10/11
  • 2 total stops
  • 28h 58m total
  • Ontario to San Antonio
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find 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 11 September 2025.

Thu 23/109:45 a.m.YYZ - SAT
1 stop14h 55mMultiple Airlines
Tue 28/107:00 a.m.SAT - YYZ
2 stops35h 36mMultiple Airlines
Deal found 11/9C$ 389
Mon 8/121:30 p.m.YYZ - SAT
2 stops16h 39mMultiple Airlines
Sat 13/126:44 p.m.SAT - YYZ
1 stop10h 36mMultiple Airlines
Deal found 9/9C$ 398
Wed 1/1010:00 a.m.YYZ - SAT
2 stops31h 47mMultiple Airlines
Thu 2/109:47 p.m.SAT - YYZ
1 stop21h 11mMultiple Airlines
Deal found 11/9C$ 402
Sat 18/101:35 p.m.YYZ - SAT
1 stop29h 55mMultiple Airlines
Sat 25/102:04 p.m.SAT - YYZ
2 stops15h 09mMultiple Airlines
Deal found 9/9C$ 409
Mon 27/1010:15 p.m.YYZ - SAT
2 stops26h 25mMultiple Airlines
Mon 3/116:15 p.m.SAT - YYZ
1 stop11h 05mMultiple Airlines
Deal found 11/9C$ 425
Mon 10/117:55 p.m.YYZ - SAT
1 stop22h 33mMultiple Airlines
Thu 13/116:23 p.m.SAT - YYZ
1 stop10h 57mMultiple Airlines
Deal found 10/9C$ 431
Mon 13/109:35 a.m.YYZ - SAT
1 stop9h 55mMultiple Airlines
Thu 16/104:55 p.m.SAT - YYZ
1 stop28h 45mMultiple Airlines
Deal found 10/9C$ 468
Sat 18/1011:44 a.m.YYZ - SAT
1 stop11h 04mAmerican Airlines
Sat 25/102:32 p.m.SAT - YYZ
1 stop7h 13mAmerican Airlines
Deal found 9/9C$ 475
Tue 21/1010:25 p.m.YYZ - SAT
2 stops26h 15mMultiple Airlines
Sat 25/107:00 a.m.SAT - YYZ
2 stops16h 22mMultiple Airlines
Deal found 10/9C$ 479
Tue 23/97:00 a.m.YUL - SAT
1 stop11h 06mDelta
Fri 26/96:35 a.m.SAT - YUL
1 stop10h 14mDelta
Deal found 9/9C$ 492
Sun 26/107:00 a.m.YUL - SAT
1 stop11h 16mDelta
Wed 29/1011:35 a.m.SAT - YUL
1 stop10h 39mDelta
Deal found 9/9C$ 549
Tue 23/99:45 a.m.YUL - SAT
2 stops12h 32mUnited Airlines
Fri 26/95:09 p.m.SAT - YUL
1 stop16h 31mUnited Airlines
Deal found 9/9C$ 564

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 629,999 searches. Data last updated 11 September 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

Mon 27/10

9:35 a.m.-6:30 p.m.

1 stop9h 55m

San Antonio

Mon 3/11

6:15 p.m.-6:20 a.m.

1 stop11h 05m

C$ 437

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Wed 1/10

9:50 a.m.-1:49 p.m.

1 stop28h 59m

San Antonio

Thu 2/10

9:47 p.m.-7:58 p.m.

1 stop21h 11m

C$ 449

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Tue 21/10

10:25 p.m.-11:40 p.m.

2 stops26h 15m

San Antonio

Sat 25/10

7:00 a.m.-12:22 a.m.

2 stops16h 22m

C$ 479

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 23/9

7:00 a.m.-5:06 p.m.

1 stop11h 06m

San Antonio

Fri 26/9

6:35 a.m.-5:49 p.m.

1 stop10h 14m

C$ 492

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Wed 24/9

6:55 p.m.-11:59 p.m.

1 stop6h 04m

San Antonio

Fri 26/9

6:35 a.m.-5:49 p.m.

1 stop10h 14m

C$ 492

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Thu 25/9

7:00 a.m.-11:58 a.m.

1 stop5h 58m

San Antonio

Fri 26/9

5:09 p.m.-9:58 a.m.

1 stop15h 49m

C$ 527

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Sat 27/9

7:00 a.m.-11:58 a.m.

1 stop5h 58m

San Antonio

Thu 2/10

6:45 a.m.-3:46 p.m.

1 stop8h 01m

C$ 527

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Thu 9/10

3:59 p.m.-10:35 p.m.

1 stop7h 36m

San Antonio

Sun 12/10

7:16 a.m.-10:36 p.m.

1 stop14h 20m

C$ 535

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Wed 24/9

2:30 p.m.-8:33 p.m.

1 stop7h 03m

San Antonio

Mon 29/9

1:05 p.m.-7:37 p.m.

1 stop5h 32m

C$ 536

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Tue 24/2

6:00 a.m.-11:33 a.m.

1 stop6h 33m

San Antonio

Wed 25/2

4:00 p.m.-11:02 p.m.

1 stop6h 02m

C$ 545

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 52 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, July is the cheapest month in which you can book a flight from Region of Ontario to San Antonio (average of C$ 325). Flying from Region of Ontario to San Antonio in May is currently the most expensive (average of C$ 443). 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 11 September 2025.

When flying from Region of Ontario to San Antonio, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Region of Ontario to San Antonio

Explore weekly flight availability from Ontario to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 11 September 2025.

The most flights from CAON to SAT are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 12.2 km from San Antonio’s city centre.

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

    Delta, United Airlines, and Air Canada can get you from Region of Ontario to San Antonio in just under 5h 58m. Your travel time can differ by up to 5h 40m. There are 2292 km between Region of Ontario and San Antonio. This flight may include one or multiple stops.

  • 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 Ottawa - 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, July is the cheapest month in which you can book a flight from Region of Ontario to San Antonio (average of C$ 325). Flying from Region of Ontario to San Antonio in May is currently the most expensive (average of C$ 443). 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

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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 5 airlines flying from Ontario to San Antonio

Discover the top 5 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 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 342AverageC$ 757FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 358AverageC$ 438FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 358AverageC$ 719FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 371AverageC$ 573FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 435AverageC$ 597FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to San Antonio?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Antonio from Ontario today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ontario to San Antonio?

Cheapflights simply makes it quick and affordable to book flights from Ontario to San Antonio by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to San Antonio with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario to San Antonio with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to San Antonio become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to San Antonio on Cheapflights with our Price Alert feature and get notified when better prices are available.

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