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

United Airlines, Delta, 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 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$ 174+ Flights from Ontario to San Antonio

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 15 December 2025.

Sun 21/122:13 p.m.YUL - SAT

2 stops19h 37mUnited Airlines

Wed 7/17:20 p.m.SAT - YUL

2 stops18h 56mUnited Airlines

Deal found 14/12C$ 722

Thu 18/127:00 a.m.YUL - SAT

1 stop9h 03mUnited Airlines

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

1 stop6h 00mUnited Airlines

Deal found 14/12C$ 738

Sat 20/1211:38 a.m.YYZ - SAT

1 stop13h 21mAmerican Airlines

Tue 30/126:44 a.m.SAT - YYZ

1 stop15h 00mAmerican Airlines

Deal found 13/12C$ 759

Sun 21/126:00 p.m.YUL - SAT

1 stop15h 50mAir Canada

Wed 7/18:30 a.m.SAT - YUL

1 stop7h 28mAir Canada

Deal found 14/12C$ 761

Thu 18/124:44 p.m.YYZ - SAT

1 stop7h 09mAmerican Airlines

Tue 30/126:44 a.m.SAT - YYZ

1 stop15h 00mAmerican Airlines

Deal found 14/12C$ 766

Sun 21/126:00 p.m.YUL - SAT

1 stop15h 50mAir Canada

Tue 6/17:06 a.m.SAT - YUL

2 stops12h 39mAir Canada

Deal found 14/12C$ 768

Thu 18/127:10 a.m.YUL - SAT

1 stop11h 05mDelta

Tue 6/16:30 a.m.SAT - YUL

1 stop6h 12mDelta

Deal found 14/12C$ 777

Sun 21/122:13 p.m.YUL - SAT

2 stops19h 37mUnited Airlines

Mon 5/15:59 p.m.SAT - YUL

2 stops12h 46mUnited Airlines

Deal found 14/12C$ 794

Fri 19/126:10 a.m.YYZ - SAT

1 stop7h 57mUnited Airlines

Thu 25/129:51 a.m.SAT - YYZ

2 stops10h 33mUnited Airlines

Deal found 13/12C$ 800

Sat 13/126:00 a.m.YUL - SAT

1 stop8h 00mWestJet

Sun 14/124:52 p.m.SAT - YUL

1 stop6h 07mWestJet

Deal found 12/12C$ 806

Wed 24/1210:30 p.m.YUL - SAT

2 stops15h 41mAir Canada

Thu 8/18:30 a.m.SAT - YUL

1 stop7h 28mAir Canada

Deal found 14/12C$ 811

Sat 20/1211:38 a.m.YYZ - SAT

1 stop13h 21mAmerican Airlines

Thu 25/129:12 a.m.SAT - YYZ

1 stop6h 07mAmerican Airlines

Deal found 13/12C$ 815

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 15 December 2025.

Wed 14/15:15 p.m.YYZ - SAT

1 stop15h 59mMultiple Airlines

Wed 21/16:30 a.m.SAT - YYZ

2 stops15h 50mMultiple Airlines

Deal found 15/12C$ 362

Thu 29/15:11 p.m.YOW - SAT

1 stop7h 02mUnited Airlines

Thu 5/211:43 a.m.SAT - YOW

2 stops9h 13mUnited Airlines

Deal found 15/12C$ 419

Thu 22/17:00 a.m.YUL - SAT

1 stop11h 22mDelta

Mon 26/16:30 a.m.SAT - YUL

1 stop6h 12mDelta

Deal found 14/12C$ 592

Fri 9/110:25 a.m.YTZ - SAT

2 stops11h 31mAir Canada

Mon 12/17:06 a.m.SAT - YTZ

2 stops13h 22mAir Canada

Deal found 13/12C$ 664

Thu 19/28:30 p.m.YYZ - SAT

1 stop14h 00mMultiple Airlines

Mon 23/23:50 p.m.SAT - YYZ

1 stop13h 30mMultiple Airlines

Deal found 15/12C$ 373

Mon 26/15:55 p.m.YOW - SAT

2 stops15h 46mUnited Airlines

Fri 30/12:05 p.m.SAT - YOW

1 stop6h 13mUnited Airlines

Deal found 14/12C$ 419

Thu 29/17:00 a.m.YOW - SAT

1 stop27h 40mMultiple Airlines

Thu 5/210:35 a.m.SAT - YOW

1 stop12h 50mMultiple Airlines

Deal found 15/12C$ 406

Tue 10/33:40 p.m.YYZ - SAT

1 stop18h 50mMultiple Airlines

Tue 17/310:26 a.m.SAT - YYZ

1 stop11h 54mMultiple Airlines

Deal found 13/12C$ 409

Sun 11/110:30 a.m.YOW - SAT

2 stops13h 43mUnited Airlines

Sun 18/15:25 a.m.SAT - YOW

2 stops14h 53mUnited Airlines

Deal found 14/12C$ 493

Mon 12/17:10 a.m.YYZ - SAT

1 stop17h 42mMultiple Airlines

Mon 19/110:35 a.m.SAT - YYZ

1 stop11h 45mMultiple Airlines

Deal found 14/12C$ 427

Thu 8/12:45 p.m.YUL - SAT

1 stop6h 58mDelta

Wed 14/16:30 a.m.SAT - YUL

1 stop6h 12mDelta

Deal found 15/12C$ 592

Sun 11/17:00 a.m.YOW - SAT

1 stop27h 40mMultiple Airlines

Sun 18/110:35 a.m.SAT - YOW

1 stop29h 50mMultiple Airlines

Deal found 14/12C$ 428

Tue 20/17:15 a.m.YYZ - SAT

1 stop17h 37mMultiple Airlines

Thu 22/16:30 a.m.SAT - YYZ

2 stops12h 41mMultiple Airlines

Deal found 15/12C$ 431

Fri 9/14:45 p.m.YUL - SAT

1 stop7h 30mUnited Airlines

Tue 13/15:25 a.m.SAT - YUL

2 stops8h 51mUnited Airlines

Deal found 13/12C$ 591

Sat 10/18:30 p.m.YYZ - SAT

1 stop14h 10mMultiple Airlines

Sat 17/16:30 a.m.SAT - YYZ

1 stop16h 41mMultiple Airlines

Deal found 13/12C$ 435

Thu 22/17:00 a.m.YUL - SAT

2 stops13h 41mUnited Airlines

Mon 26/111:43 a.m.SAT - YUL

2 stops8h 59mUnited Airlines

Deal found 14/12C$ 592

Fri 9/17:10 a.m.YYZ - SAT

1 stop17h 42mMultiple Airlines

Fri 16/14:25 p.m.SAT - YYZ

2 stops12h 48mMultiple Airlines

Deal found 12/12C$ 449

Fri 23/12:13 p.m.YUL - SAT

2 stops9h 44mUnited Airlines

Fri 30/12:05 p.m.SAT - YUL

1 stop6h 12mUnited Airlines

Deal found 15/12C$ 613

Fri 23/15:25 p.m.YUL - SAT

2 stops17h 15mMultiple Airlines

Fri 30/110:35 a.m.SAT - YUL

1 stop28h 47mMultiple Airlines

Deal found 15/12C$ 452

Tue 10/24:45 p.m.YUL - SAT

1 stop7h 28mUnited Airlines

Wed 11/212:15 p.m.SAT - YUL

1 stop6h 33mUnited Airlines

Deal found 13/12C$ 629

Tue 3/23:40 p.m.YYZ - SAT

3 stops33h 12mMultiple Airlines

Fri 20/210:26 a.m.SAT - YYZ

1 stop11h 54mMultiple Airlines

Deal found 15/12C$ 516

Mon 9/37:00 a.m.YYZ - SAT

1 stop27h 30mMultiple Airlines

Mon 16/310:26 a.m.SAT - YYZ

1 stop24h 02mMultiple Airlines

Deal found 13/12C$ 516

Tue 10/32:05 p.m.YTZ - SAT

2 stops20h 25mMultiple Airlines

Tue 17/310:26 a.m.SAT - YTZ

2 stops20h 54mMultiple Airlines

Deal found 13/12C$ 587

Mon 6/46:45 a.m.YUL - SAT

2 stops27h 37mMultiple Airlines

Thu 9/410:26 a.m.SAT - YUL

1 stop13h 19mMultiple Airlines

Deal found 15/12C$ 596

Sun 11/12:05 p.m.YTZ - SAT

2 stops20h 35mMultiple Airlines

Sun 18/110:35 a.m.SAT - YTZ

2 stops26h 12mMultiple Airlines

Deal found 13/12C$ 602

Wed 28/16:45 a.m.YUL - SAT

2 stops18h 07mMultiple Airlines

Wed 4/26:30 a.m.SAT - YUL

3 stops31h 40mMultiple Airlines

Deal found 14/12C$ 620

Tue 13/110:30 a.m.YTZ - SAT

2 stops14h 22mMultiple Airlines

Tue 20/16:30 a.m.SAT - YTZ

2 stops13h 20mMultiple Airlines

Deal found 14/12C$ 676

Last-minute flights from Ontario to San Antonio
Discover last-minute flight deals from Ontario to San Antonio. Data last updated 15 December 2025 and is based on user searches.

Fri 9/17:10 a.m.YYZ - SAT

1 stop17h 42mMultiple Airlines

Fri 16/110:35 a.m.SAT - YYZ

1 stop10h 37mMultiple Airlines

Deal found 12/12C$ 390

Sat 10/18:30 p.m.YYZ - SAT

1 stop14h 10mMultiple Airlines

Sat 17/16:30 a.m.SAT - YYZ

1 stop16h 41mMultiple Airlines

Deal found 13/12C$ 435

Sun 11/17:55 p.m.YYZ - SAT

1 stop16h 05mMultiple Airlines

Sun 18/18:59 a.m.SAT - YYZ

1 stop28h 21mMultiple Airlines

Deal found 13/12C$ 302

Sun 11/17:00 a.m.YOW - SAT

1 stop27h 40mMultiple Airlines

Sun 18/110:35 a.m.SAT - YOW

1 stop29h 50mMultiple Airlines

Deal found 14/12C$ 428

Sun 11/110:30 a.m.YOW - SAT

2 stops13h 43mUnited Airlines

Sun 18/15:25 a.m.SAT - YOW

2 stops14h 53mUnited Airlines

Deal found 14/12C$ 493

Mon 12/17:10 a.m.YYZ - SAT

1 stop17h 42mMultiple Airlines

Mon 19/110:35 a.m.SAT - YYZ

1 stop11h 45mMultiple Airlines

Deal found 14/12C$ 427

Tue 13/17:15 a.m.YYZ - SAT

1 stop17h 37mMultiple Airlines

Tue 20/16:30 a.m.SAT - YYZ

2 stops12h 41mMultiple Airlines

Deal found 14/12C$ 431

Wed 14/15:15 p.m.YYZ - SAT

1 stop15h 59mMultiple Airlines

Sat 17/110:35 a.m.SAT - YYZ

1 stop11h 45mMultiple Airlines

Deal found 14/12C$ 391

Fri 23/15:25 p.m.YUL - SAT

2 stops17h 15mMultiple Airlines

Fri 30/110:35 a.m.SAT - YUL

1 stop28h 47mMultiple Airlines

Deal found 15/12C$ 452

Mon 26/15:55 p.m.YOW - SAT

2 stops15h 46mUnited Airlines

Fri 30/17:20 p.m.SAT - YOW

2 stops22h 32mUnited Airlines

Deal found 14/12C$ 419

Wed 28/18:00 a.m.YUL - SAT

1 stop26h 40mMultiple Airlines

Wed 4/26:30 a.m.SAT - YUL

2 stops31h 40mMultiple Airlines

Deal found 14/12C$ 493

Thu 29/17:00 a.m.YOW - SAT

1 stop27h 40mMultiple Airlines

Thu 5/210:35 a.m.SAT - YOW

1 stop12h 50mMultiple Airlines

Deal found 15/12C$ 406

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 15 December 2025.

Sat 10/17:00 a.m.YOW - SAT

3 stops17h 52mMultiple Airlines

Deal found 15/12C$ 174

Thu 29/112:30 p.m.YYZ - SAT

2 stops24h 55mMultiple Airlines

Deal found 12/12C$ 189

Thu 29/12:05 p.m.YTZ - SAT

2 stops20h 35mMultiple Airlines

Deal found 12/12C$ 212

Wed 28/110:15 p.m.YYZ - SAT

2 stops39h 10mMultiple Airlines

Deal found 14/12C$ 219

Wed 28/18:00 a.m.YUL - SAT

1 stop26h 40mMultiple Airlines

Deal found 14/12C$ 233

Thu 29/17:00 a.m.YOW - SAT

1 stop27h 40mMultiple Airlines

Deal found 15/12C$ 242

Tue 6/15:11 p.m.YOW - SAT

1 stop7h 02mUnited Airlines

Deal found 15/12C$ 248

Mon 19/15:11 p.m.YOW - SAT

2 stops16h 30mUnited Airlines

Deal found 15/12C$ 255

Wed 7/110:45 a.m.YUL - SAT

3 stops23h 55mMultiple Airlines

Deal found 15/12C$ 264

Tue 6/14:15 p.m.YOW - SAT

2 stops20h 35mMultiple Airlines

Deal found 15/12C$ 288

Wed 28/17:00 a.m.YTZ - SAT

2 stops17h 52mMultiple Airlines

Deal found 14/12C$ 289

Tue 6/15:25 p.m.YUL - SAT

2 stops31h 01mMultiple Airlines

Deal found 15/12C$ 292

Find flight deals from Ontario to San Antonio

Round-trip from	C$ 302
One-way from	C$ 174
Popular in	December
Cheapest in	February
Average price	C$ 839

11/1-18/1
2 total stops
44h 26m total
Ontario to San Antonio

Search Deals

10/1
3 total stops
17h 52m total
Ontario to San Antonio

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (C$ 47 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 December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Wed 14/1

5:15 p.m.-8:14 a.m.

1 stop15h 59m

San Antonio

Wed 21/1

6:30 a.m.-11:20 p.m.

2 stops15h 50m

C$ 362

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Thu 19/2

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

1 stop14h 00m

San Antonio

Mon 23/2

3:50 p.m.-6:20 a.m.

1 stop13h 30m

C$ 373

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Thu 29/1

7:00 a.m.-9:40 a.m.

1 stop27h 40m

San Antonio

Thu 5/2

10:35 a.m.-12:25 a.m.

1 stop12h 50m

C$ 406

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Tue 10/3

3:40 p.m.-9:30 a.m.

1 stop18h 50m

San Antonio

Tue 17/3

10:26 a.m.-11:20 p.m.

1 stop11h 54m

C$ 409

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Thu 29/1

5:11 p.m.-11:13 p.m.

1 stop7h 02m

San Antonio

Thu 5/2

11:43 a.m.-9:56 p.m.

2 stops9h 13m

C$ 419

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Mon 26/1

5:55 p.m.-8:41 a.m.

2 stops15h 46m

San Antonio

Fri 30/1

2:05 p.m.-9:18 p.m.

1 stop6h 13m

C$ 419

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Mon 12/1

7:10 a.m.-11:52 p.m.

1 stop17h 42m

San Antonio

Mon 19/1

10:35 a.m.-11:20 p.m.

1 stop11h 45m

C$ 427

OttawaSan Antonio

YOW - SAT

YOWSAT

Ottawa

Sun 11/1

7:00 a.m.-9:40 a.m.

1 stop27h 40m

San Antonio

Sun 18/1

10:35 a.m.-5:25 p.m.

1 stop29h 50m

C$ 428

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Tue 20/1

7:15 a.m.-11:52 p.m.

1 stop17h 37m

San Antonio

Thu 22/1

6:30 a.m.-8:11 p.m.

2 stops12h 41m

C$ 431

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Sat 10/1

8:30 p.m.-9:40 a.m.

1 stop14h 10m

San Antonio

Sat 17/1

6:30 a.m.-12:11 a.m.

1 stop16h 41m

C$ 435

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/12

Showing 1-10 of 48 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$ 241). Flying from Region of Ontario to San Antonio in August is currently the most expensive (average of C$ 530). 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, Delta, 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 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$ 241). Flying from Region of Ontario to San Antonio in August is currently the most expensive (average of C$ 530). 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$ 364	AverageC$ 719	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 379	AverageC$ 723	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Delta	CheapestC$ 396	AverageC$ 551	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	CheapestC$ 419	AverageC$ 622	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
WestJet	CheapestC$ 460	AverageC$ 631	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

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.

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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$ 174

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 15 December 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 15 December 2025.

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 15 December 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 15 December 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?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to San Antonio

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

Top 5 airlines flying from Ontario to San Antonio

Fly with Cheapflights

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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 15 December 2025.