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Cheap flights from Ontario to San Antonio from C$ 214

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SAT
18 Apr — 25 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to San Antonio

Enter your travel dates to find the best prices.

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 19 March 2026.

Fri 10/410:44 a.m.
YOW
-
SAT
1 stop13h 14m
United Airlines
Sun 10/57:00 a.m.
SAT
-
YOW
1 stop15h 54m
United Airlines
Deal found 14/3C$ 421
Sat 11/410:44 a.m.
YOW
-
SAT
2 stops10h 04m
United Airlines
Wed 15/46:49 a.m.
SAT
-
YOW
2 stops14h 16m
United Airlines
Deal found 15/3C$ 422
Tue 7/43:40 p.m.
YYZ
-
SAT
1 stop18h 47m
Multiple Airlines
Sat 11/41:22 p.m.
SAT
-
YYZ
1 stop8h 13m
Multiple Airlines
Deal found 17/3C$ 426
Mon 30/37:10 a.m.
YYZ
-
SAT
1 stop30h 17m
Multiple Airlines
Tue 14/410:22 a.m.
SAT
-
YYZ
1 stop26h 43m
Multiple Airlines
Deal found 14/3C$ 441
Mon 30/37:10 a.m.
YYZ
-
SAT
1 stop30h 17m
Multiple Airlines
Wed 8/410:22 a.m.
SAT
-
YYZ
1 stop11h 58m
Multiple Airlines
Deal found 14/3C$ 448
Mon 30/37:10 a.m.
YYZ
-
SAT
1 stop30h 17m
Multiple Airlines
Sat 11/41:22 p.m.
SAT
-
YYZ
1 stop8h 13m
Multiple Airlines
Deal found 14/3C$ 466
Tue 7/43:40 p.m.
YYZ
-
SAT
1 stop18h 47m
Multiple Airlines
Mon 13/41:22 p.m.
SAT
-
YYZ
1 stop23h 54m
Multiple Airlines
Deal found 17/3C$ 469
Mon 6/43:40 p.m.
YYZ
-
SAT
1 stop18h 47m
Multiple Airlines
Sat 11/41:22 p.m.
SAT
-
YYZ
1 stop8h 13m
Multiple Airlines
Deal found 17/3C$ 476
Fri 24/75:10 a.m.
YOW
-
SAT
2 stops11h 53m
United Airlines
Tue 28/75:23 p.m.
SAT
-
YOW
2 stops15h 40m
United Airlines
Deal found 15/3C$ 507
Sat 18/412:42 p.m.
YUL
-
SAT
1 stop8h 48m
Delta
Wed 22/412:26 p.m.
SAT
-
YUL
1 stop10h 25m
Delta
Deal found 18/3C$ 508
Mon 27/46:35 p.m.
YUL
-
SAT
1 stop17h 28m
United Airlines
Tue 28/42:14 p.m.
SAT
-
YUL
2 stops8h 59m
United Airlines
Deal found 15/3C$ 521
Sat 25/49:45 a.m.
YUL
-
SAT
2 stops8h 58m
United Airlines
Thu 30/47:00 a.m.
SAT
-
YUL
1 stop16h 13m
United Airlines
Deal found 15/3C$ 528

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 19 March 2026.

Round-trip from

C$ 421

One-way from

C$ 214

Popular in

December

Cheapest in

April

Average price

C$ 677
United Airlines
  • United Airlines
  • 10/4-10/5
  • 2 total stops
  • 29h 08m total
  • Ontario to San Antonio
Search Deals
American Airlines
  • American Airlines
  • 14/4
  • 1 total stop
  • 15h 08m total
  • Ontario to San Antonio
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 25 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 629,999 searches. Data last updated 19 March 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 10/4

10:44 a.m.-10:58 p.m.

1 stop13h 14m

San Antonio

Sun 10/5

7:00 a.m.-11:54 p.m.

1 stop15h 54m

C$ 421

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Wed 29/4

10:00 a.m.-5:43 p.m.

2 stops8h 43m

San Antonio

Wed 6/5

5:34 p.m.-10:03 a.m.

2 stops15h 29m

C$ 422

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Sat 11/4

10:44 a.m.-7:48 p.m.

2 stops10h 04m

San Antonio

Wed 15/4

6:49 a.m.-10:05 p.m.

2 stops14h 16m

C$ 422

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Fri 19/6

5:50 p.m.-8:27 a.m.

2 stops15h 37m

San Antonio

Thu 25/6

7:00 a.m.-11:54 p.m.

1 stop15h 54m

C$ 496
Quickest round-trip

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Fri 24/7

6:08 p.m.-11:12 p.m.

1 stop6h 04m

San Antonio

Tue 28/7

5:20 a.m.-11:27 a.m.

1 stop5h 07m

C$ 506

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Sat 9/5

11:34 a.m.-6:23 p.m.

1 stop7h 49m

San Antonio

Wed 13/5

6:35 a.m.-4:33 p.m.

1 stop8h 58m

C$ 507

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Sat 18/4

12:42 p.m.-8:30 p.m.

1 stop8h 48m

San Antonio

Wed 22/4

12:26 p.m.-11:51 p.m.

1 stop10h 25m

C$ 508

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Fri 24/4

10:00 a.m.-11:36 p.m.

2 stops14h 36m

San Antonio

Mon 4/5

4:44 p.m.-10:56 p.m.

1 stop5h 12m

C$ 524

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 31/3

9:45 a.m.-5:43 p.m.

2 stops8h 58m

San Antonio

Tue 7/4

11:46 a.m.-10:06 p.m.

2 stops9h 20m

C$ 528

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

5:00 p.m.-10:58 p.m.

1 stop6h 58m

San Antonio

Sat 18/4

7:15 p.m.-10:40 a.m.

2 stops14h 25m

C$ 528

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/3

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 C$ 230). Flying from Region of Ontario to San Antonio in November is currently the most expensive (average of C$ 513). 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 12.2 km from San Antonio’s city centre.

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

    United Airlines, WestJet, and Delta can get you from Region of Ontario to San Antonio in just under 6h 04m. Your travel time can differ by up to 7h 10m. 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 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 C$ 230). Flying from Region of Ontario to San Antonio in November is currently the most expensive (average of C$ 513). 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 19 March 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 256AverageC$ 575FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 374AverageC$ 605FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 397AverageC$ 628FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 405AverageC$ 614FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 495AverageC$ 636FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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