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

United Airlines and Delta can get you from Region of Ontario to San Antonio in just under 7h 38m. Your travel time can differ by up to 3h 39m. There are 2652 km between Region of Ontario and San Antonio. This flight may include one or multiple stops.

In terms of precipitation, rainfall in San Antonio ranges from 41.0 - 95.0 mm per month. May is typically the wettest month, when rainfall can reach 95.0 mm. December is typically the driest time to visit San Antonio when rainfall is around 41.0 mm.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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.

What are the most popular airlines that fly from Region of Ontario to San Antonio?

WestJet, United Airlines and Air Canada are the most popular airlines when flying from Region of Ontario to San Antonio.

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.

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.

C$ 197+ Cheap Flights from Ontario to San Antonio

Find 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 29 October 2025.

Fri 5/1212:50 p.m.YYZ - SAT

1 stop25h 28mMultiple Airlines

Mon 8/122:13 p.m.SAT - YYZ

1 stop8h 58mMultiple Airlines

Deal found 27/10C$ 391

Mon 24/1112:50 p.m.YYZ - SAT

1 stop28h 09mMultiple Airlines

Mon 1/128:33 p.m.SAT - YYZ

1 stop16h 32mMultiple Airlines

Deal found 27/10C$ 416

Thu 27/117:55 p.m.YYZ - SAT

1 stop15h 49mMultiple Airlines

Thu 4/129:10 a.m.SAT - YYZ

1 stop7h 43mMultiple Airlines

Deal found 28/10C$ 436

Mon 24/119:30 a.m.YOW - SAT

1 stop31h 29mMultiple Airlines

Mon 1/128:33 p.m.SAT - YOW

2 stops27h 09mMultiple Airlines

Deal found 27/10C$ 439

Thu 11/125:15 p.m.YYZ - SAT

1 stop21h 03mMultiple Airlines

Thu 18/122:39 p.m.SAT - YYZ

1 stop7h 41mMultiple Airlines

Deal found 27/10C$ 446

Fri 21/1112:50 p.m.YYZ - SAT

1 stop28h 09mMultiple Airlines

Mon 1/128:33 p.m.SAT - YYZ

1 stop16h 32mMultiple Airlines

Deal found 27/10C$ 453

Mon 8/1211:15 a.m.YYZ - SAT

1 stop13h 11mMultiple Airlines

Sun 14/125:46 p.m.SAT - YYZ

2 stops16h 57mMultiple Airlines

Deal found 26/10C$ 475

Fri 21/117:00 a.m.YYZ - SAT

1 stop12h 32mMultiple Airlines

Mon 24/117:37 p.m.SAT - YYZ

1 stop15h 06mMultiple Airlines

Deal found 27/10C$ 476

Fri 21/1112:50 p.m.YYZ - SAT

1 stop28h 09mMultiple Airlines

Sun 30/118:33 p.m.SAT - YYZ

1 stop14h 10mMultiple Airlines

Deal found 28/10C$ 486

Mon 3/117:00 a.m.YYZ - SAT

1 stop12h 32mMultiple Airlines

Fri 7/115:35 p.m.SAT - YYZ

2 stops19h 45mMultiple Airlines

Deal found 27/10C$ 492

Thu 4/125:15 p.m.YYZ - SAT

1 stop21h 03mMultiple Airlines

Sun 7/126:10 p.m.SAT - YYZ

1 stop11h 10mMultiple Airlines

Deal found 27/10C$ 500

Mon 24/119:45 a.m.YOW - SAT

2 stops14h 11mUnited Airlines

Mon 1/127:00 p.m.SAT - YOW

2 stops19h 23mUnited Airlines

Deal found 27/10C$ 503

Best flights from Ontario to San Antonio
Discover carefully curated flight deals from Ontario to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 29 October 2025.

Fri 5/1212:50 p.m.YYZ - SAT

1 stop25h 28mMultiple Airlines

Mon 8/122:13 p.m.SAT - YYZ

1 stop8h 58mMultiple Airlines

Deal found 27/10C$ 391

Mon 23/22:15 p.m.YOW - SAT

1 stop7h 38mUnited Airlines

Wed 25/27:37 p.m.SAT - YOW

2 stops16h 57mUnited Airlines

Deal found 26/10C$ 421

Thu 13/117:00 a.m.YUL - SAT

1 stop11h 17mDelta

Wed 19/118:00 a.m.SAT - YUL

1 stop8h 21mDelta

Deal found 29/10C$ 592

Tue 24/210:45 a.m.YTZ - SAT

2 stops11h 08mAir Canada

Wed 25/27:00 a.m.SAT - YTZ

2 stops13h 35mAir Canada

Deal found 26/10C$ 704

Fri 30/19:30 a.m.YOW - SAT

1 stop13h 57mMultiple Airlines

Fri 6/26:00 a.m.SAT - YOW

1 stop16h 58mMultiple Airlines

Deal found 26/10C$ 407

Mon 8/1211:15 a.m.YYZ - SAT

1 stop13h 11mMultiple Airlines

Sun 14/128:50 a.m.SAT - YYZ

1 stop25h 53mMultiple Airlines

Deal found 26/10C$ 416

Mon 24/119:45 a.m.YOW - SAT

2 stops14h 11mUnited Airlines

Mon 1/127:00 p.m.SAT - YOW

2 stops19h 23mUnited Airlines

Deal found 27/10C$ 503

Sat 10/17:10 a.m.YYZ - SAT

2 stops22h 59mMultiple Airlines

Tue 13/16:00 a.m.SAT - YYZ

2 stops16h 20mMultiple Airlines

Deal found 26/10C$ 421

Fri 30/110:30 a.m.YOW - SAT

2 stops13h 45mUnited Airlines

Fri 6/27:30 p.m.SAT - YOW

2 stops18h 53mUnited Airlines

Deal found 26/10C$ 503

Thu 27/117:55 p.m.YYZ - SAT

1 stop15h 49mMultiple Airlines

Thu 4/129:10 a.m.SAT - YYZ

1 stop7h 43mMultiple Airlines

Deal found 28/10C$ 436

Mon 24/116:26 p.m.YUL - SAT

1 stop7h 12mDelta

Mon 1/126:30 a.m.SAT - YUL

1 stop9h 51mDelta

Deal found 27/10C$ 611

Mon 24/119:30 a.m.YOW - SAT

1 stop31h 29mMultiple Airlines

Mon 1/128:33 p.m.SAT - YOW

2 stops27h 09mMultiple Airlines

Deal found 27/10C$ 439

Wed 7/12:45 p.m.YUL - SAT

1 stop9h 45mDelta

Fri 9/16:30 a.m.SAT - YUL

1 stop6h 12mDelta

Deal found 27/10C$ 630

Thu 27/112:13 p.m.YUL - SAT

1 stop7h 02mUnited Airlines

Thu 4/127:00 a.m.SAT - YUL

1 stop6h 00mUnited Airlines

Deal found 28/10C$ 619

Mon 10/1110:30 a.m.YTZ - SAT

2 stops10h 45mAir Canada

Sun 16/1112:12 p.m.SAT - YTZ

2 stops8h 16mAir Canada

Deal found 27/10C$ 752

Fri 14/1112:50 p.m.YYZ - SAT

1 stop22h 13mMultiple Airlines

Sat 22/117:04 p.m.SAT - YYZ

1 stop18h 16mMultiple Airlines

Deal found 27/10C$ 503

Wed 10/122:13 p.m.YUL - SAT

1 stop7h 02mUnited Airlines

Wed 17/122:12 p.m.SAT - YUL

1 stop6h 05mUnited Airlines

Deal found 29/10C$ 630

Fri 21/1110:55 a.m.YYZ - SAT

1 stop9h 26mMultiple Airlines

Sun 23/117:39 p.m.SAT - YYZ

1 stop15h 04mMultiple Airlines

Deal found 29/10C$ 509

Wed 7/19:15 a.m.YUL - SAT

1 stop12h 41mUnited Airlines

Thu 8/17:00 a.m.SAT - YUL

1 stop6h 00mUnited Airlines

Deal found 27/10C$ 630

Mon 24/117:15 a.m.YYZ - SAT

2 stops13h 06mMultiple Airlines

Mon 1/128:33 p.m.SAT - YYZ

1 stop16h 32mMultiple Airlines

Deal found 27/10C$ 510

Fri 21/118:15 p.m.YYZ - SAT

2 stops23h 17mMultiple Airlines

Mon 24/117:37 p.m.SAT - YYZ

1 stop15h 06mMultiple Airlines

Deal found 27/10C$ 552

Wed 7/18:00 a.m.YUL - SAT

1 stop16h 26mMultiple Airlines

Fri 9/11:51 p.m.SAT - YUL

2 stops16h 14mMultiple Airlines

Deal found 27/10C$ 555

Mon 10/1112:50 p.m.YYZ - SAT

1 stop22h 13mMultiple Airlines

Sun 16/114:54 p.m.SAT - YYZ

1 stop30h 31mMultiple Airlines

Deal found 27/10C$ 559

Thu 11/126:45 a.m.YUL - SAT

1 stop17h 41mMultiple Airlines

Thu 18/122:39 p.m.SAT - YUL

1 stop9h 06mMultiple Airlines

Deal found 27/10C$ 580

Fri 12/125:15 p.m.YYZ - SAT

1 stop21h 03mMultiple Airlines

Fri 19/126:45 a.m.SAT - YYZ

2 stops36h 10mMultiple Airlines

Deal found 27/10C$ 585

Tue 6/18:00 a.m.YUL - SAT

1 stop16h 26mMultiple Airlines

Fri 9/11:51 p.m.SAT - YUL

2 stops16h 14mMultiple Airlines

Deal found 27/10C$ 601

Sun 4/14:35 p.m.YUL - SAT

1 stop26h 41mMultiple Airlines

Thu 8/16:00 a.m.SAT - YUL

2 stops13h 14mMultiple Airlines

Deal found 27/10C$ 619

Mon 24/116:45 a.m.YUL - SAT

1 stop12h 47mMultiple Airlines

Mon 1/127:37 p.m.SAT - YUL

2 stops20h 18mMultiple Airlines

Deal found 27/10C$ 622

Fri 5/1212:30 p.m.YTZ - SAT

2 stops11h 56mMultiple Airlines

Mon 8/122:13 p.m.SAT - YTZ

2 stops19h 22mMultiple Airlines

Deal found 27/10C$ 625

Fri 21/116:15 p.m.YTZ - SAT

2 stops22h 44mMultiple Airlines

Sun 23/118:33 p.m.SAT - YTZ

2 stops22h 17mMultiple Airlines

Deal found 29/10C$ 637

Last-minute flights from Ontario to San Antonio
Discover last-minute flight deals from Ontario to San Antonio. Data last updated 29 October 2025 and is based on user searches.

Mon 3/117:00 a.m.YYZ - SAT

1 stop12h 32mMultiple Airlines

Fri 7/115:35 p.m.SAT - YYZ

2 stops19h 45mMultiple Airlines

Deal found 27/10C$ 492

Mon 3/117:00 a.m.YYZ - SAT

1 stop12h 32mMultiple Airlines

Tue 4/117:37 p.m.SAT - YYZ

1 stop15h 06mMultiple Airlines

Deal found 27/10C$ 525

Fri 14/1112:50 p.m.YYZ - SAT

1 stop22h 13mMultiple Airlines

Sat 22/117:04 p.m.SAT - YYZ

1 stop18h 16mMultiple Airlines

Deal found 27/10C$ 503

Fri 21/1112:50 p.m.YYZ - SAT

1 stop28h 09mMultiple Airlines

Mon 1/128:33 p.m.SAT - YYZ

1 stop16h 32mMultiple Airlines

Deal found 27/10C$ 453

Fri 21/117:00 a.m.YYZ - SAT

1 stop12h 32mMultiple Airlines

Mon 24/117:37 p.m.SAT - YYZ

1 stop15h 06mMultiple Airlines

Deal found 27/10C$ 476

Fri 21/1112:50 p.m.YYZ - SAT

1 stop28h 09mMultiple Airlines

Sun 30/118:33 p.m.SAT - YYZ

1 stop14h 10mMultiple Airlines

Deal found 28/10C$ 486

Fri 21/1110:55 a.m.YYZ - SAT

1 stop9h 26mMultiple Airlines

Sun 23/117:39 p.m.SAT - YYZ

1 stop15h 04mMultiple Airlines

Deal found 29/10C$ 509

Mon 24/1112:50 p.m.YYZ - SAT

1 stop28h 09mMultiple Airlines

Mon 1/128:33 p.m.SAT - YYZ

1 stop16h 32mMultiple Airlines

Deal found 27/10C$ 416

Mon 24/119:30 a.m.YOW - SAT

1 stop31h 29mMultiple Airlines

Mon 1/128:33 p.m.SAT - YOW

2 stops27h 09mMultiple Airlines

Deal found 27/10C$ 439

Mon 24/119:45 a.m.YOW - SAT

2 stops14h 11mUnited Airlines

Mon 1/127:00 p.m.SAT - YOW

2 stops19h 23mUnited Airlines

Deal found 27/10C$ 503

Thu 27/117:55 p.m.YYZ - SAT

1 stop15h 49mMultiple Airlines

Thu 4/129:10 a.m.SAT - YYZ

1 stop7h 43mMultiple Airlines

Deal found 28/10C$ 436

Thu 27/116:45 a.m.YUL - SAT

1 stop12h 47mMultiple Airlines

Thu 4/121:55 p.m.SAT - YUL

2 stops27h 30mMultiple Airlines

Deal found 28/10C$ 551

One-way flights from Ontario to San Antonio
Search for one-way flight options from Ontario to San Antonio. Find affordable one-way fares based on user searches. Data last updated 29 October 2025.

Fri 6/27:10 a.m.YYZ - SAT

1 stop16h 17mMultiple Airlines

Deal found 28/10C$ 197

Mon 24/1112:50 p.m.YYZ - SAT

1 stop30h 26mMultiple Airlines

Deal found 27/10C$ 221

Sat 13/127:10 a.m.YYZ - SAT

1 stop8h 05mMultiple Airlines

Deal found 29/10C$ 233

Wed 7/13:40 p.m.YYZ - SAT

1 stop24h 31mMultiple Airlines

Deal found 26/10C$ 242

Thu 11/125:15 p.m.YYZ - SAT

1 stop21h 03mMultiple Airlines

Deal found 27/10C$ 243

Tue 25/1110:55 a.m.YYZ - SAT

1 stop8h 21mMultiple Airlines

Deal found 27/10C$ 253

Fri 27/25:15 p.m.YYZ - SAT

1 stop30h 12mMultiple Airlines

Deal found 27/10C$ 261

Thu 11/125:25 p.m.YUL - SAT

2 stops31h 01mMultiple Airlines

Deal found 27/10C$ 264

Fri 7/1112:50 p.m.YYZ - SAT

1 stop22h 13mMultiple Airlines

Deal found 28/10C$ 267

Thu 11/122:30 p.m.YTZ - SAT

2 stops27h 21mMultiple Airlines

Deal found 27/10C$ 270

Sun 16/116:45 a.m.YUL - SAT

2 stops12h 47mMultiple Airlines

Deal found 27/10C$ 270

Fri 20/28:30 p.m.YYZ - SAT

2 stops26h 57mMultiple Airlines

Deal found 27/10C$ 275

Cheap flight deals from Ontario to San Antonio

Round-trip from	C$ 391
One-way from	C$ 197
Popular in	August
Cheapest in	February
Average price	C$ 622

5/12-8/12
2 total stops
34h 26m total
Ontario to San Antonio

Search Deals

6/2
1 total stop
16h 17m total
Ontario to San Antonio

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (C$ 125 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Fri 5/12

12:50 p.m.-1:18 p.m.

1 stop25h 28m

San Antonio

Mon 8/12

2:13 p.m.-12:11 a.m.

1 stop8h 58m

C$ 391

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Fri 30/1

9:30 a.m.-10:27 p.m.

1 stop13h 57m

San Antonio

Fri 6/2

6:00 a.m.-11:58 p.m.

1 stop16h 58m

C$ 407

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Mon 8/12

11:15 a.m.-11:26 p.m.

1 stop13h 11m

San Antonio

Sun 14/12

8:50 a.m.-11:43 a.m.

1 stop25h 53m

C$ 416

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Mon 23/2

2:15 p.m.-8:53 p.m.

1 stop7h 38m

San Antonio

Wed 25/2

7:37 p.m.-1:34 p.m.

2 stops16h 57m

C$ 421

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Sat 10/1

7:10 a.m.-5:09 a.m.

2 stops22h 59m

San Antonio

Tue 13/1

6:00 a.m.-11:20 p.m.

2 stops16h 20m

C$ 421

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Thu 27/11

7:55 p.m.-10:44 a.m.

1 stop15h 49m

San Antonio

Thu 4/12

9:10 a.m.-5:53 p.m.

1 stop7h 43m

C$ 436

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Mon 24/11

9:30 a.m.-3:59 p.m.

1 stop31h 29m

San Antonio

Mon 1/12

8:33 p.m.-12:42 a.m.

2 stops27h 09m

C$ 439

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Mon 24/11

9:45 a.m.-10:56 p.m.

2 stops14h 11m

San Antonio

Mon 1/12

7:00 p.m.-3:23 p.m.

2 stops19h 23m

C$ 503

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Fri 30/1

10:30 a.m.-11:15 p.m.

2 stops13h 45m

San Antonio

Fri 6/2

7:30 p.m.-3:23 p.m.

2 stops18h 53m

C$ 503

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Fri 14/11

12:50 p.m.-10:03 a.m.

1 stop22h 13m

San Antonio

Sat 22/11

7:04 p.m.-2:20 p.m.

1 stop18h 16m

C$ 503

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/10

Showing 1-10 of 53 results

...

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$ 256). Flying from Region of Ontario to San Antonio in August is currently the most expensive (average of C$ 538). 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?

It’s typically best to fly out from Region of Ontario to San Antonio in the evening. Doing so could potentially save you 53% on the flight price compared to flying in the morning, which is usually more expensive.

Related info for your journey

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 and Delta can get you from Region of Ontario to San Antonio in just under 7h 38m. Your travel time can differ by up to 3h 39m. There are 2652 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$ 256). Flying from Region of Ontario to San Antonio in August is currently the most expensive (average of C$ 538). 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

Alternative routes for Ontario to San Antonio

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Top 5 airlines flying from Ontario to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 345	AverageC$ 716	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 372	AverageC$ 731	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Delta	CheapestC$ 374	AverageC$ 483	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	CheapestC$ 398	AverageC$ 577	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
WestJet	CheapestC$ 462	AverageC$ 628	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

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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.

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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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Cheap flights from Ontario to San Antonio from C$ 197

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find flight deals from Ontario to San Antonio

Cheapest flights from Ontario to San AntonioExplore 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 29 October 2025.

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 29 October 2025.

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 29 October 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to San Antonio that are best for you.

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.

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?

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 29 October 2025.

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?

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

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

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

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

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Alternative routes for Ontario to San Antonio

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Top 5 airlines flying from Ontario to San Antonio

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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 29 October 2025.