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Cheap flights from San Antonio to Ontario from C$ 164

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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — YYZ
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Antonio to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from San Antonio to Ontario
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 29 January 2026.

Tue 14/410:27 a.m.
SAT
-
YYZ
1 stop26h 38m
Multiple Airlines
Sun 19/46:30 a.m.
YYZ
-
SAT
1 stop28h 00m
Multiple Airlines
Deal found 27/1C$ 377
Sun 1/311:35 a.m.
SAT
-
YYZ
1 stop18h 08m
Multiple Airlines
Thu 5/38:20 p.m.
YYZ
-
SAT
1 stop18h 18m
Multiple Airlines
Deal found 29/1C$ 379
Wed 15/410:26 a.m.
SAT
-
YYZ
1 stop26h 39m
Multiple Airlines
Sun 19/46:30 a.m.
YYZ
-
SAT
1 stop28h 00m
Multiple Airlines
Deal found 28/1C$ 381
Mon 2/34:00 p.m.
SAT
-
YYZ
1 stop13h 43m
Multiple Airlines
Sun 8/38:20 p.m.
YYZ
-
SAT
1 stop18h 03m
Multiple Airlines
Deal found 27/1C$ 390
Wed 15/410:26 a.m.
SAT
-
YYZ
1 stop26h 39m
Multiple Airlines
Tue 21/411:15 a.m.
YYZ
-
SAT
1 stop23h 15m
Multiple Airlines
Deal found 28/1C$ 399
Mon 13/41:22 p.m.
SAT
-
YYZ
1 stop9h 52m
Multiple Airlines
Sun 19/46:30 a.m.
YYZ
-
SAT
1 stop28h 00m
Multiple Airlines
Deal found 27/1C$ 400
Tue 3/36:00 a.m.
SAT
-
YYZ
1 stop17h 14m
Multiple Airlines
Fri 6/37:10 a.m.
YYZ
-
SAT
1 stop31h 13m
Multiple Airlines
Deal found 27/1C$ 402
Sat 11/410:27 a.m.
SAT
-
YYZ
1 stop24h 01m
Multiple Airlines
Sun 19/46:30 a.m.
YYZ
-
SAT
1 stop28h 00m
Multiple Airlines
Deal found 27/1C$ 403
Tue 14/410:27 a.m.
SAT
-
YYZ
1 stop26h 38m
Multiple Airlines
Tue 21/411:15 a.m.
YYZ
-
SAT
1 stop23h 15m
Multiple Airlines
Deal found 28/1C$ 406
Tue 21/410:26 a.m.
SAT
-
YUL
1 stop27h 44m
Multiple Airlines
Sat 25/48:00 a.m.
YUL
-
SAT
1 stop26h 30m
Multiple Airlines
Deal found 28/1C$ 467
Tue 17/32:08 p.m.
SAT
-
YUL
2 stops33h 30m
Multiple Airlines
Mon 23/38:00 a.m.
YUL
-
SAT
1 stop26h 32m
Multiple Airlines
Deal found 28/1C$ 471
Sun 26/410:26 a.m.
SAT
-
YUL
1 stop29h 02m
Multiple Airlines
Wed 29/46:45 a.m.
YUL
-
SAT
1 stop27h 45m
Multiple Airlines
Deal found 27/1C$ 479

Find flight deals from San Antonio to Ontario

Keep the following information in mind while searching for San Antonio to Ontario flight deals. Data was last updated 29 January 2026.

Round-trip from

C$ 377

One-way from

C$ 164

Popular in

December

Cheapest in

May

Average price

C$ 848
14/4-19/4
  • 14/4-19/4
  • 2 total stops
  • 54h 38m total
  • San Antonio to Ontario
Search Deals
25/3
  • 25/3
  • 1 total stop
  • 29h 01m total
  • San Antonio to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 178 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 January 2026
Search Deals

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 629,999 searches. Data last updated 29 January 2026.
Use the filters below to find and compare flights from San Antonio to Ontario that are best for you.

Fly from

San Antonio

Fly to

Ontario

Route

Depart

Return

Price

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Wed 15/4

10:26 a.m.-2:05 p.m.

1 stop26h 39m

Toronto Pearson Intl

Sun 19/4

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

1 stop28h 00m

C$ 381

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Tue 14/4

10:27 a.m.-2:05 p.m.

1 stop26h 38m

Toronto Pearson Intl

Sun 19/4

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

1 stop28h 00m

C$ 388

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Wed 15/4

10:26 a.m.-2:05 p.m.

1 stop26h 39m

Toronto Pearson Intl

Tue 21/4

11:15 a.m.-9:30 a.m.

1 stop23h 15m

C$ 399

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Mon 13/4

1:22 p.m.-12:14 a.m.

1 stop9h 52m

Toronto Pearson Intl

Sun 19/4

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

1 stop28h 00m

C$ 411

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Tue 14/4

10:27 a.m.-7:05 p.m.

1 stop7h 38m

Toronto Pearson Intl

Wed 15/4

7:15 a.m.-10:29 p.m.

2 stops16h 14m

C$ 444

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Sat 11/4

10:27 a.m.-10:15 p.m.

1 stop10h 48m

Toronto Pearson Intl

Thu 16/4

8:30 p.m.-9:30 a.m.

1 stop14h 00m

C$ 453

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Wed 15/4

10:26 a.m.-10:15 p.m.

1 stop10h 49m

Toronto Pearson Intl

Thu 16/4

8:30 p.m.-9:30 a.m.

1 stop14h 00m

C$ 455

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Tue 14/4

10:27 a.m.-7:05 p.m.

1 stop7h 38m

Toronto Pearson Intl

Thu 16/4

8:30 p.m.-9:30 a.m.

1 stop14h 00m

C$ 460

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Tue 17/3

2:08 p.m.-12:38 a.m.

2 stops33h 30m

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

8:00 a.m.-9:32 a.m.

1 stop26h 32m

C$ 471

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Wed 15/4

10:26 a.m.-3:10 p.m.

1 stop27h 44m

Montreal Pierre Elliott Trudeau Intl

Sun 19/4

8:00 a.m.-9:30 a.m.

1 stop26h 30m

C$ 482

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

Showing 1-10 of 32 results
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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.
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

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

Currently, September is the cheapest month in which you can book a flight from San Antonio to Region of Ontario (average of C$ 99). Flying from San Antonio to Region of Ontario in November is currently the most expensive (average of C$ 634). 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 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.

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

    Most people fly from San Antonio (SAT) if they book a flight from San Antonio to Ontario. San Antonio is conveniently located just 12.2 km from San Antonio’s city centre.

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

    United Airlines can get you from San Antonio to Region of Ontario in just under 15h 01m. Your travel time can differ by up to . Airlines will cover a distance of 2652 km.

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

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 207. American Airlines flights start at C$ 265 while deals on United Airlines start at C$ 304 one-way.

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

    The most popular route from San Antonio to Region of Ontario is San Antonio - Montreal Pierre Elliott Trudeau Intl. You may also consider San Antonio - Toronto Pearson Intl or San Antonio - Ottawa.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio to Ontario 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 San Antonio to Region of Ontario?

    Currently, September is the cheapest month in which you can book a flight from San Antonio to Region of Ontario (average of C$ 99). Flying from San Antonio to Region of Ontario in November is currently the most expensive (average of C$ 634). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Antonio to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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

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

Need flexible booking options for your flight to Ontario from San Antonio? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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