HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$138+ Cheap flights from San Antonio (SAT) to Ontario

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — YYZ
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 April 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$283
(Mytrip)

One-way from

$138
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$527
Provider with most accurate pricing for San Antonio-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Toronto (YTO) flights.
Search Deals
From San Antonio to Ontario
Search Deals
One-way flight from San Antonio to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from San Antonio to Ontario

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 April 30, 2025.

This Mytrip deal was found by Cheapflights users on 4/29. 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.
Wed 6/117:05 amSAT - YYZ
1 stop30h 00mMultiple Airlines
Sat 6/214:00 pmYYZ - SAT
1 stop26h 18mMultiple Airlines
Deal found 4/29$283
This Flightnetwork deal was found by Cheapflights users on 4/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/157:15 pmSAT - YYZ
1 stop15h 19mAir Canada
Sat 5/247:00 amYYZ - SAT
1 stop6h 23mAir Canada
Deal found 4/27$342
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Mon 6/162:10 pmSAT - YYZ
1 stop5h 34mUnited Airlines
Wed 6/257:00 amYYZ - SAT
1 stop6h 23mUnited Airlines
Deal found 4/27$365
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Fri 5/1610:01 amSAT - YUL
1 stop27h 19mMultiple Airlines
Fri 5/306:45 amYUL - SAT
2 stops31h 57mMultiple Airlines
Deal found 4/28$367
This Trip.com deal was found by Cheapflights users on 4/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/216:25 amSAT - YYZ
2 stops10h 39mWestJet
Tue 5/276:15 amYYZ - SAT
1 stop7h 15mWestJet
Deal found 4/28$367
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 5/3011:30 amSAT - YUL
1 stop10h 46mDelta
Tue 6/107:00 amYUL - SAT
1 stop11h 06mDelta
Deal found 4/28$387
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 5/2810:48 amSAT - YUL
2 stops10h 56mAmerican Airlines
Mon 6/912:30 pmYUL - SAT
1 stop12h 14mAmerican Airlines
Deal found 4/28$396
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 6/215:35 amSAT - YUL
3 stops15h 31mUnited Airlines
Thu 6/268:05 amYUL - SAT
1 stop13h 52mUnited Airlines
Deal found 4/28$402
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 5/216:00 amSAT - YYZ
1 stop5h 30mAmerican Airlines
Wed 5/2811:45 amYYZ - SAT
1 stop6h 24mAmerican Airlines
Deal found 4/28$407
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Fri 5/3010:32 amSAT - YUL
1 stop12h 22mWestJet
Tue 6/106:45 pmYUL - SAT
1 stop20h 09mWestJet
Deal found 4/29$420
This Delta deal was found by Cheapflights users on 4/29. 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.
Sun 6/295:20 amSAT - YYZ
1 stop4h 58mDelta
Sun 7/61:04 pmYYZ - SAT
1 stop9h 19mDelta
Deal found 4/29$438
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Wed 5/286:45 amSAT - YUL
2 stops11h 41mAir Canada
Mon 6/92:10 pmYUL - SAT
2 stops9h 47mAir Canada
Deal found 4/28$447

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 2,558,603 searches. Data last updated April 30, 2025.
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 6/11

7:05 am-2:05 pm

1 stop30h 00m

Toronto Pearson Intl

Sat 6/21

4:00 pm-5:18 pm

1 stop26h 18m

$283

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Thu 5/15

7:15 pm-11:34 am

1 stop15h 19m

Toronto Pearson Intl

Sat 5/24

7:00 am-12:23 pm

1 stop6h 23m

$342

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Mon 6/16

2:10 pm-8:44 pm

1 stop5h 34m

Toronto Pearson Intl

Wed 6/25

7:00 am-12:23 pm

1 stop6h 23m

$365

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Wed 5/21

6:25 am-6:04 pm

2 stops10h 39m

Toronto Pearson Intl

Tue 5/27

6:15 am-12:30 pm

1 stop7h 15m

$367

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Fri 5/16

10:01 am-2:20 pm

1 stop27h 19m

Montreal Pierre Elliott Trudeau Intl

Fri 5/30

6:45 am-1:42 pm

2 stops31h 57m

$367

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Fri 5/30

11:30 am-11:16 pm

1 stop10h 46m

Montreal Pierre Elliott Trudeau Intl

Tue 6/10

7:00 am-5:06 pm

1 stop11h 06m

$387

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Wed 5/28

10:48 am-10:44 pm

2 stops10h 56m

Montreal Pierre Elliott Trudeau Intl

Mon 6/9

12:30 pm-11:44 pm

1 stop12h 14m

$396

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Sat 6/21

5:35 am-10:06 pm

3 stops15h 31m

Montreal Pierre Elliott Trudeau Intl

Thu 6/26

8:05 am-8:57 pm

1 stop13h 52m

$402

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Wed 5/21

6:00 am-12:30 pm

1 stop5h 30m

Toronto Pearson Intl

Wed 5/28

11:45 am-5:09 pm

1 stop6h 24m

$407

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Fri 6/13

4:27 pm-11:58 pm

1 stop6h 31m

Toronto Pearson Intl

Sun 6/22

6:15 am-3:31 pm

1 stop10h 16m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 23 results
1
2
3

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, January is the cheapest month in which you can book a flight from San Antonio to Region of Ontario (average of $243). Flying from San Antonio to Region of Ontario in July is currently the most expensive (average of $359). 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 SAT to ON?

Find hourly flight availability from San Antonio to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

When flying from San Antonio to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Region of Ontario, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 30, 2025.
See what other customers who have flown with Alaska Airlines, Delta and United Airlines from San Antonio to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
WestJet
7.2
Good
2,823 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    San Antonio (SAT), located 7.6 mi from the city center, is the airport you fly out of when you book flights from San Antonio to Ontario.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $160. Users have also found prices from $179 and $180 on Air Canada and Delta, respectively.

  • 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, January is the cheapest month in which you can book a flight from San Antonio to Region of Ontario (average of $243). Flying from San Antonio to Region of Ontario in July is currently the most expensive (average of $359). 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

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

Alternative routes for San Antonio to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Vancouver Intl flights
Dallas/Fort Worth to Pearson Intl flights
George Bush Intcntl to Vancouver Intl flights
Hobby to Pearson Intl flights
Dallas/Fort Worth to Vancouver Intl flights
Hobby to Calgary flights
George Bush Intcntl to Pearson Intl flights
Dallas/Fort Worth to Calgary flights
Austin to Vancouver Intl flights
George Bush Intcntl to Calgary flights
Dallas/Fort Worth to Halifax flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Austin to Pearson Intl flights
Hobby to Pierre Elliott Trudeau Intl flights
Love Field to Halifax flights
Austin to Calgary flights
Dallas/Fort Worth to Toronto Island flights
George Bush Intcntl to Pierre Elliott Trudeau Intl flights
Love Field to Pearson Intl flights
San Antonio to Vancouver Intl flights
George Bush Intcntl to Abbotsford flights
Love Field to Vancouver Intl flights
Austin to Pierre Elliott Trudeau Intl flights
Love Field to Calgary flights
Austin to Abbotsford flights
Hobby to Toronto Island flights
Dallas/Fort Worth to Québec City flights
George Bush Intcntl to Toronto Island flights
Dallas/Fort Worth to Ottawa flights
Love Field to Pierre Elliott Trudeau Intl flights
Hobby to Edmonton flights
San Antonio to Pearson Intl flights
San Antonio to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Victoria flights
Austin to Toronto Island flights
Hobby to Winnipeg flights
George Bush Intcntl to Edmonton flights
Dallas/Fort Worth to Edmonton flights
El Paso to Vancouver Intl flights
San Antonio to Calgary flights
Austin to Edmonton flights
Dallas/Fort Worth to Abbotsford flights
George Bush Intcntl to Winnipeg flights
Austin to Québec City flights
Dallas/Fort Worth to Charlottetown flights
Dallas/Fort Worth to Winnipeg flights
George Bush Intcntl to Hamilton flights
George Bush Intcntl to Region of Waterloo Intl flights
Austin to Victoria flights

Top 5 airlines flying from San Antonio to Ontario

Discover the top 5 airlines that operate flights from San Antonio to Ontario. 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$144Average$608FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$161Average$404FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$297Average$606FlexibilityNo cancel feeOn-time69%
DeltaCheapest$298Average$362FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$349Average$477FlexibilityNo cancel feeOn-time60%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.