Cheap flights from Ontario to San Antonio from C$ 228

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SAT
5 Aug — 12 Aug1
1 adult

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 31 July 2025.

Round-trip from

C$ 450

One-way from

C$ 228

Popular in

July

Cheapest in

September

Average price

C$ 630
2/11-5/11
  • 2/11-5/11
  • 2 total stops
  • 20h 41m total
  • Ontario to San Antonio
17/9
  • 17/9
  • 1 total stop
  • 12h 07m total
  • Ontario to San Antonio
Highest demand for flights based on searches. 11% potential increase in price (C$ 98 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).
Average for round-trip flights in July 2025

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 31 July 2025.

Sun 2/117:10 a.m.YYZ - SAT
1 stop9h 45mMultiple Airlines
Wed 5/116:00 a.m.SAT - YYZ
1 stop10h 56mMultiple Airlines
Deal found 29/7C$ 450
Thu 4/911:23 a.m.YUL - SAT
2 stops10h 54mUnited Airlines
Wed 10/91:20 p.m.SAT - YUL
1 stop7h 46mUnited Airlines
Deal found 30/7C$ 503
Sat 13/97:00 a.m.YYZ - SAT
1 stop6h 01mUnited Airlines
Sun 21/97:10 a.m.SAT - YYZ
1 stop6h 20mUnited Airlines
Deal found 30/7C$ 527
Thu 4/98:30 p.m.YUL - SAT
1 stop16h 10mMultiple Airlines
Wed 10/99:47 p.m.SAT - YUL
3 stops27h 03mMultiple Airlines
Deal found 30/7C$ 539
Sat 20/911:44 a.m.YYZ - SAT
2 stops7h 58mAmerican Airlines
Sat 4/104:02 p.m.SAT - YYZ
1 stop5h 48mAmerican Airlines
Deal found 29/7C$ 555
Thu 4/910:38 a.m.YUL - SAT
2 stops9h 06mAmerican Airlines
Wed 10/97:00 a.m.SAT - YUL
1 stop6h 49mAmerican Airlines
Deal found 30/7C$ 563
Fri 15/811:33 a.m.YYZ - SAT
1 stop8h 57mDelta
Mon 18/81:29 p.m.SAT - YYZ
1 stop7h 29mDelta
Deal found 30/7C$ 567
Thu 4/96:00 a.m.YUL - SAT
1 stop10h 30mLufthansa
Wed 10/91:20 p.m.SAT - YUL
1 stop7h 46mLufthansa
Deal found 30/7C$ 570
Thu 18/912:25 p.m.YTZ - SAT
2 stops11h 23mAir Canada
Sun 21/96:48 a.m.SAT - YTZ
2 stops10h 57mAir Canada
Deal found 31/7C$ 599
Fri 12/93:35 p.m.YTZ - SAT
3 stops28h 57mMultiple Airlines
Fri 19/92:54 p.m.SAT - YTZ
2 stops19h 46mMultiple Airlines
Deal found 29/7C$ 612
Thu 4/91:05 p.m.YUL - SAT
2 stops8h 28mAir Canada
Wed 10/91:20 p.m.SAT - YUL
1 stop7h 46mAir Canada
Deal found 30/7C$ 617
Fri 15/811:33 a.m.YYZ - SAT
1 stop6h 33mWestJet
Mon 18/81:35 p.m.SAT - YYZ
2 stops15h 37mWestJet
Deal found 30/7C$ 629

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 31 July 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

Sun 2/11

7:10 a.m.-3:55 p.m.

1 stop9h 45m

San Antonio

Wed 5/11

6:00 a.m.-5:56 p.m.

1 stop10h 56m

C$ 450

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

11:23 a.m.-9:17 p.m.

2 stops10h 54m

San Antonio

Wed 10/9

1:20 p.m.-10:06 p.m.

1 stop7h 46m

C$ 503

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Sat 13/9

7:00 a.m.-12:01 p.m.

1 stop6h 01m

San Antonio

Sun 21/9

7:10 a.m.-2:30 p.m.

1 stop6h 20m

C$ 527

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

8:30 p.m.-11:40 a.m.

1 stop16h 10m

San Antonio

Wed 10/9

9:47 p.m.-1:50 a.m.

3 stops27h 03m

C$ 539

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Sat 20/9

11:44 a.m.-6:42 p.m.

2 stops7h 58m

San Antonio

Sat 4/10

4:02 p.m.-10:50 p.m.

1 stop5h 48m

C$ 555

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

10:38 a.m.-6:44 p.m.

2 stops9h 06m

San Antonio

Wed 10/9

7:00 a.m.-2:49 p.m.

1 stop6h 49m

C$ 563

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Fri 15/8

11:33 a.m.-7:30 p.m.

1 stop8h 57m

San Antonio

Mon 18/8

1:29 p.m.-9:58 p.m.

1 stop7h 29m

C$ 567

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

6:00 a.m.-3:30 p.m.

1 stop10h 30m

San Antonio

Wed 10/9

1:20 p.m.-10:06 p.m.

1 stop7h 46m

C$ 570

TorontoSan Antonio

YTZ - SAT

YTZSAT

Toronto Island

Thu 18/9

12:25 p.m.-10:48 p.m.

2 stops11h 23m

San Antonio

Sun 21/9

6:48 a.m.-6:45 p.m.

2 stops10h 57m

C$ 599

TorontoSan Antonio

YTZ - SAT

YTZSAT

Toronto Island

Fri 12/9

3:35 p.m.-7:32 p.m.

3 stops28h 57m

San Antonio

Fri 19/9

2:54 p.m.-11:40 a.m.

2 stops19h 46m

C$ 612

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/7

Showing 1-10 of 28 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 31 July 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 31 July 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).

How much does it cost to fly round-trip from Region of Ontario to San Antonio?

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated 31 July 2025.
Check out reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Ontario to San Antonio to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
8.0
Very good

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at C$ 303. United Airlines flights start at C$ 314 while deals on Delta start at C$ 343 one-way.

  • 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?

    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.

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 31 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 343AverageC$ 741FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 356AverageC$ 703FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 358AverageC$ 418FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 387AverageC$ 565FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 433AverageC$ 576FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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