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Cheap flights from San Antonio to Ontario from C$ 144
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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — YYZ
3 Aug — 10 Aug1
Round-trip
1 adult
Economy
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 29 July 2025.
Find flight deals from San Antonio to Ontario
Cheapest flights from San Antonio to OntarioExplore 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 29 July 2025.
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 29 July 2025.
Fri 12/97:19 p.m.SAT - YYZ
1 stop17h 46mMultiple Airlines
Fri 19/910:40 a.m.YYZ - SAT
1 stop9h 52mMultiple Airlines
Deal found 29/7C$ 424
Thu 11/98:37 p.m.SAT - YUL
2 stops27h 04mMultiple Airlines
Thu 18/96:45 a.m.YUL - SAT
1 stop8h 04mMultiple Airlines
Deal found 28/7C$ 513
Sat 6/98:00 a.m.SAT - YYZ
1 stop5h 31mAmerican Airlines
Sat 6/95:17 p.m.YYZ - SAT
1 stop6h 19mAmerican Airlines
Deal found 29/7C$ 627
Thu 2/107:00 a.m.SAT - YUL
1 stop7h 00mUnited Airlines
Tue 7/106:15 a.m.YUL - SAT
1 stop6h 43mUnited Airlines
Deal found 29/7C$ 672
Mon 1/96:00 a.m.SAT - YUL
1 stop9h 42mAmerican Airlines
Mon 8/93:44 p.m.YUL - SAT
1 stop8h 16mAmerican Airlines
Deal found 28/7C$ 674
Thu 28/85:53 p.m.SAT - YOW
1 stop22h 27mMultiple Airlines
Mon 1/97:00 a.m.YOW - SAT
2 stops10h 48mMultiple Airlines
Deal found 28/7C$ 782
Fri 19/93:25 p.m.SAT - YUL
1 stop7h 31mDelta
Wed 24/911:00 a.m.YUL - SAT
2 stops13h 25mDelta
Deal found 28/7C$ 803
Mon 6/104:21 p.m.SAT - YUL
2 stops8h 29mAir Canada
Fri 10/105:00 a.m.YUL - SAT
2 stops18h 35mAir Canada
Deal found 29/7C$ 808
Mon 6/105:20 a.m.SAT - YUL
1 stop5h 55mWestJet
Fri 10/105:30 p.m.YUL - SAT
2 stops28h 40mWestJet
Deal found 28/7C$ 838
Thu 4/97:00 a.m.SAT - YOW
2 stops13h 09mUnited Airlines
Sat 6/99:50 a.m.YOW - SAT
1 stop11h 43mUnited Airlines
Deal found 28/7C$ 1,038
Fri 5/91:19 p.m.SAT - YOW
2 stops10h 03mDelta
Sun 7/95:55 a.m.YOW - SAT
2 stops10h 46mDelta
Deal found 28/7C$ 1,269
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 629,999 searches. Data last updated 29 July 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
Fri 12/9
7:19 p.m.-2:05 p.m.
1 stop17h 46m
Toronto Pearson Intl
Fri 19/9
10:40 a.m.-7:32 p.m.
1 stop9h 52m
C$ 424
San AntonioMontreal
SAT - YUL
SATYUL
San Antonio
Thu 11/9
8:37 p.m.-12:41 a.m.
2 stops27h 04m
Montreal Pierre Elliott Trudeau Intl
Thu 18/9
6:45 a.m.-1:49 p.m.
1 stop8h 04m
C$ 513
San AntonioToronto
SAT - YYZ
SATYYZ
San Antonio
Sat 6/9
8:00 a.m.-2:31 p.m.
1 stop5h 31m
Toronto Pearson Intl
Sat 6/9
5:17 p.m.-10:36 p.m.
1 stop6h 19m
C$ 627
San AntonioMontreal
SAT - YUL
SATYUL
San Antonio
Thu 2/10
7:00 a.m.-3:00 p.m.
1 stop7h 00m
Montreal Pierre Elliott Trudeau Intl
Tue 7/10
6:15 a.m.-11:58 a.m.
1 stop6h 43m
C$ 672
San AntonioMontreal
SAT - YUL
SATYUL
San Antonio
Mon 1/9
6:00 a.m.-4:42 p.m.
1 stop9h 42m
Montreal Pierre Elliott Trudeau Intl
Mon 8/9
3:44 p.m.-11:00 p.m.
1 stop8h 16m
C$ 674
San AntonioOttawa
SAT - YOW
SATYOW
San Antonio
Thu 28/8
5:53 p.m.-5:20 p.m.
1 stop22h 27m
Ottawa
Mon 1/9
7:00 a.m.-4:48 p.m.
2 stops10h 48m
C$ 782
San AntonioMontreal
SAT - YUL
SATYUL
San Antonio
Fri 19/9
3:25 p.m.-11:56 p.m.
1 stop7h 31m
Montreal Pierre Elliott Trudeau Intl
Wed 24/9
11:00 a.m.-11:25 p.m.
2 stops13h 25m
C$ 803
San AntonioMontreal
SAT - YUL
SATYUL
San Antonio
Mon 6/10
4:21 p.m.-1:50 a.m.
2 stops8h 29m
Montreal Pierre Elliott Trudeau Intl
Fri 10/10
5:00 a.m.-10:35 p.m.
2 stops18h 35m
C$ 808
San AntonioMontreal
SAT - YUL
SATYUL
San Antonio
Mon 6/10
5:20 a.m.-12:15 p.m.
1 stop5h 55m
Montreal Pierre Elliott Trudeau Intl
Fri 10/10
5:30 p.m.-9:10 p.m.
2 stops28h 40m
C$ 838
San AntonioOttawa
SAT - YOW
SATYOW
San Antonio
Thu 4/9
7:00 a.m.-9:09 p.m.
2 stops13h 09m
Ottawa
Sat 6/9
9:50 a.m.-8:33 p.m.
1 stop11h 43m
C$ 1,038
Showing 1-10 of 16 results
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 C$ 167). Flying from San Antonio to Region of Ontario in July is currently the most expensive (average of C$ 258). 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.
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 29 July 2025.
Read through reviews of airlines operating flights from San Antonio to Ontario, such as Delta,United Airlines, andAmerican Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Entertainment
7.9
Boarding
8.2
Food
7.3
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Comfort
7.9
Entertainment
7.9
Boarding
8.2
Food
7.3
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Comfort
7.9
Entertainment
7.9
Boarding
8.2
Food
7.3
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Comfort
7.9
Entertainment
7.9
Boarding
8.2
Food
7.3
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Comfort
7.9
Entertainment
7.9
Boarding
8.2
Food
7.3
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Comfort
7.9
Entertainment
7.9
Boarding
8.2
Food
7.3
Crew
8.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
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.
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Alternative routes for San Antonio to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from San Antonio to Ontario
Discover the top airline 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 629,999 searches. Data last updated 29 July 2025.
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How does Cheapflights help users find flights from San Antonio to Ontario?
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Why should you use Cheapflights to find cheap flight tickets from San Antonio to Ontario?
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Can Cheapflights find flights from San Antonio to Ontario with no change fees?
Need flexible booking options for your flight to Ontario from San Antonio? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
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