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San Antonio

$135+ Cheap flights from Ontario to San Antonio (SAT)

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SAT
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 April 17, 2025.

Round-trip from

$279
(Mytrip)

One-way from

$135
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$423
From Ontario to San Antonio
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One-way flight from Ontario to San Antonio
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Highest demand for flights based on searches. 9% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 17, 2025.

This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/14:30 pmYUL - SAT
1 stop7h 42mAir Canada
Wed 5/75:30 amSAT - YUL
1 stop16h 56mAir Canada
Deal found 4/16$279
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/227:00 amYYZ - SAT
1 stop5h 51mUnited Airlines
Mon 8/257:15 amSAT - YYZ
1 stop14h 21mUnited Airlines
Deal found 4/16$287
This Air Canada deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/97:00 amYYZ - SAT
1 stop6h 12mAir Canada
Mon 5/125:30 amSAT - YYZ
1 stop6h 26mAir Canada
Deal found 4/17$288
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/144:00 pmYYZ - SAT
1 stop26h 08mMultiple Airlines
Wed 5/216:45 amSAT - YYZ
2 stops15h 11mMultiple Airlines
Deal found 4/16$295
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/141:25 pmYYZ - SAT
1 stop8h 01mDelta
Wed 5/2112:08 pmSAT - YYZ
1 stop8h 48mDelta
Deal found 4/16$302
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/249:15 amYUL - SAT
1 stop12h 18mUnited Airlines
Sun 9/286:48 amSAT - YUL
1 stop9h 38mUnited Airlines
Deal found 4/16$302
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:30 amYUL - SAT
1 stop10h 37mDelta
Fri 8/156:45 amSAT - YUL
1 stop9h 25mDelta
Deal found 4/15$348
This WestJet deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/29:49 amYYZ - SAT
1 stop6h 16mWestJet
Fri 6/65:20 amSAT - YYZ
1 stop5h 05mWestJet
Deal found 4/15$358
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:45 amYUL - SAT
2 stops19h 12mMultiple Airlines
Wed 5/72:37 pmSAT - YUL
3 stops33h 00mMultiple Airlines
Deal found 4/16$374
This lastminute.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:00 amYUL - SAT
1 stop6h 37mWestJet
Sun 5/46:30 amSAT - YUL
1 stop15h 58mWestJet
Deal found 4/17$403
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/147:30 pmYTZ - SAT
1 stop14h 59mMultiple Airlines
Fri 5/167:05 amSAT - YTZ
2 stops12h 00mMultiple Airlines
Deal found 4/16$429
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:47 amYUL - SAT
2 stops10h 27mAmerican Airlines
Sun 5/46:21 amSAT - YUL
1 stop15h 23mAmerican Airlines
Deal found 4/17$451

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 2,558,603 searches. Data last updated April 17, 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

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 5/1

4:30 pm-11:12 pm

1 stop7h 42m

San Antonio

Wed 5/7

5:30 am-11:26 pm

1 stop16h 56m

$279

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Sat 6/21

7:00 am-12:23 pm

1 stop6h 23m

San Antonio

Sat 7/5

6:40 am-6:45 pm

1 stop11h 05m

$287

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Fri 5/9

7:00 am-12:12 pm

1 stop6h 12m

San Antonio

Mon 5/12

5:30 am-12:56 pm

1 stop6h 26m

$288

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Wed 5/14

4:00 pm-5:08 pm

1 stop26h 08m

San Antonio

Wed 5/21

6:45 am-10:56 pm

2 stops15h 11m

$295

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Wed 5/14

1:25 pm-8:26 pm

1 stop8h 01m

San Antonio

Wed 5/21

12:08 pm-9:56 pm

1 stop8h 48m

$302

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 5/1

8:00 pm-1:18 pm

2 stops18h 18m

San Antonio

Wed 5/7

7:34 am-3:50 pm

1 stop7h 16m

$302

TorontoSan Antonio

YYZ - SAT

YYZSAT

Toronto Pearson Intl

Mon 6/2

9:49 am-3:05 pm

1 stop6h 16m

San Antonio

Fri 6/6

5:20 am-11:25 am

1 stop5h 05m

$358

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Thu 5/1

6:45 am-12:57 am

2 stops19h 12m

San Antonio

Wed 5/7

2:37 pm-12:37 am

3 stops33h 00m

$374

MontrealSan Antonio

YUL - SAT

YULSAT

Montreal Pierre Elliott Trudeau Intl

Tue 4/29

7:00 am-12:37 pm

1 stop6h 37m

San Antonio

Sun 5/4

6:30 am-11:28 pm

1 stop15h 58m

$403

TorontoSan Antonio

YTZ - SAT

YTZSAT

Toronto Island

Wed 5/14

7:30 pm-9:29 am

1 stop14h 59m

San Antonio

Fri 5/16

7:05 am-8:05 pm

2 stops12h 00m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 22 results
1
2
3

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, August is the cheapest month in which you can book a flight from Region of Ontario to San Antonio (average of $295). Flying from Region of Ontario to San Antonio in March is currently the most expensive (average of $376). 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 April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to San Antonio as you normally would.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 April 17, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and United Airlines from Ontario to San Antonio by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
WestJet
7.2
Good
2,809 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Crew

8.5

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 7.6 mi from San Antonio’s city center.

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

    The cheapest airlines for a one-way flight from Region of Ontario to San Antonio are Air Canada ($168), United Airlines ($169), and American Airlines ($172).

  • 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 Ottawa - 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, August is the cheapest month in which you can book a flight from Region of Ontario to San Antonio (average of $295). Flying from Region of Ontario to San Antonio in March is currently the most expensive (average of $376). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
New Braunfels

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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 4 airlines flying from Ontario to San Antonio

Discover the top 4 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 2,558,603 searches. Data last updated April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$264Average$339FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$277Average$437FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$281Average$294FlexibilityNo cancel feeOn-time69%
WestJetCheapest$326Average$422FlexibilityNo cancel feeOn-time60%

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