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Cheap flights from San Antonio to Ontario from $105

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Ontario departing on 12/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:26 am - 3:10 pmSAT-YUL
27h 44m1 stop
Multiple Airlines Logo
5:25 pm - 9:30 amYUL-SAT
17h 05m2 stops
$351Multiple Airlines
Find Deal
Sun, Jan 25 - Sat, Jan 31
Multiple Airlines Logo
10:18 am - 6:47 amSAT-YYZ
19h 29m2 stops
Multiple Airlines Logo
7:10 am - 6:16 pmYYZ-SAT
12h 06m1 stop
$356Multiple Airlines
Find Deal
Thu, Dec 25 - Wed, Dec 31
United Airlines Logo
7:07 am - 3:16 pmSAT-YUL
7h 09m1 stop
United Airlines Logo
7:00 am - 3:18 pmYUL-SAT
9h 18m1 stop
$522United Airlines
Find Deal
Wed, Nov 19 - Fri, Nov 21
United Airlines Logo
7:07 am - 3:16 pmSAT-YUL
7h 09m1 stop
United Airlines Logo
7:00 am - 3:18 pmYUL-SAT
9h 18m1 stop
$537United Airlines
Find Deal
Tue, Nov 25 - Fri, Nov 28
Delta Logo
4:57 pm - 11:59 pmSAT-YYZ
6h 02m1 stop
Delta Logo
6:05 am - 10:55 amYYZ-SAT
5h 50m1 stop
$547Delta
Find Deal
Mon, Nov 24 - Fri, Nov 28
Delta Logo
4:57 pm - 11:59 pmSAT-YUL
6h 02m1 stop
Delta Logo
7:00 am - 5:19 pmYUL-SAT
11h 19m1 stop
$556Delta
Find Deal
Mon, Nov 24 - Fri, Nov 28
American Airlines Logo
6:00 am - 3:24 pmSAT-YUL
8h 24m2 stops
American Airlines Logo
2:29 pm - 11:47 pmYUL-SAT
10h 18m2 stops
$591American Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
American Airlines Logo
6:51 am - 4:43 pmSAT-YYZ
8h 52m1 stop
American Airlines Logo
6:10 am - 12:02 pmYYZ-SAT
6h 52m1 stop
$611American Airlines
Find Deal
Sun, Dec 21 - Fri, Dec 26
WestJet Logo
4:57 pm - 11:59 pmSAT-YYZ
6h 02m1 stop
WestJet Logo
6:05 am - 10:55 amYYZ-SAT
5h 50m1 stop
$617WestJet
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Fri, Nov 21 - Sun, Nov 30
WestJet Logo
4:06 pm - 8:58 amSAT-YYZ
15h 52m1 stop
WestJet Logo
5:15 pm - 10:49 pmYYZ-SAT
6h 34m1 stop
$637WestJet
Find Deal
Sun, Dec 21 - Fri, Dec 26

Delta flights from San Antonio to Region of Ontario

Our best Delta deals on San Antonio to Region of Ontario flight tickets
Delta
Nov 24
SAT4:57 pmSan Antonio
6h 02m
1 stop
YYZ11:59 pmToronto Pearson Intl
Nov 28
YYZ6:05 amToronto Pearson Intl
5h 50m
1 stop
SAT10:55 amSan Antonio
$547
Find similar
Delta
Nov 24
SAT4:57 pmSan Antonio
6h 02m
1 stop
YUL11:59 pmMontreal Pierre Elliott Trudeau Intl
Nov 28
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
11h 19m
1 stop
SAT5:19 pmSan Antonio
$556
Find similar
Delta
Mar 10
SAT8:00 amSan Antonio
7h 56m
1 stop
YYZ4:56 pmToronto Pearson Intl
Mar 11
YYZ6:00 pmToronto Pearson Intl
7h 14m
1 stop
SAT12:14 amSan Antonio
$566
Find similar

WestJet flights from San Antonio to Region of Ontario

Our best WestJet deals on San Antonio to Region of Ontario flight tickets
WestJet
Nov 21
SAT4:57 pmSan Antonio
6h 02m
1 stop
YYZ11:59 pmToronto Pearson Intl
Nov 30
YYZ6:05 amToronto Pearson Intl
5h 50m
1 stop
SAT10:55 amSan Antonio
$617
Find similar
WestJet
Dec 21
SAT4:06 pmSan Antonio
15h 52m
1 stop
YYZ8:58 amToronto Pearson Intl
Dec 26
YYZ5:15 pmToronto Pearson Intl
6h 34m
1 stop
SAT10:49 pmSan Antonio
$637
Find similar
WestJet
Dec 21
SAT4:45 pmSan Antonio
6h 14m
1 stop
YYZ11:59 pmToronto Pearson Intl
Dec 23
YYZ6:30 pmToronto Pearson Intl
28h 23m
2 stops
SAT9:53 pmSan Antonio
$639
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Region of 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from San Antonio to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Sun 1/25

10:26 am-3:10 pm

1 stop27h 44m

Montreal Pierre Elliott Trudeau Intl

Sat 1/31

5:25 pm-9:30 am

2 stops17h 05m

$351

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Thu 12/25

10:18 am-6:47 am

2 stops19h 29m

Toronto Pearson Intl

Wed 12/31

7:10 am-6:16 pm

1 stop12h 06m

$356

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Wed 11/19

7:07 am-3:16 pm

1 stop7h 09m

Montreal Pierre Elliott Trudeau Intl

Fri 11/21

7:00 am-3:18 pm

1 stop9h 18m

$522

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Tue 11/25

7:07 am-3:16 pm

1 stop7h 09m

Montreal Pierre Elliott Trudeau Intl

Fri 11/28

7:00 am-3:18 pm

1 stop9h 18m

$537

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Mon 11/24

4:57 pm-11:59 pm

1 stop6h 02m

Toronto Pearson Intl

Fri 11/28

6:05 am-10:55 am

1 stop5h 50m

$547

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Mon 11/24

4:57 pm-11:59 pm

1 stop6h 02m

Montreal Pierre Elliott Trudeau Intl

Fri 11/28

7:00 am-5:19 pm

1 stop11h 19m

$556

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Thu 12/4

6:00 am-3:24 pm

2 stops8h 24m

Montreal Pierre Elliott Trudeau Intl

Thu 12/11

2:29 pm-11:47 pm

2 stops10h 18m

$591

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Sun 12/21

6:51 am-4:43 pm

1 stop8h 52m

Toronto Pearson Intl

Fri 12/26

6:10 am-12:02 pm

1 stop6h 52m

$611

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Fri 11/21

4:57 pm-11:59 pm

1 stop6h 02m

Toronto Pearson Intl

Sun 11/30

6:05 am-10:55 am

1 stop5h 50m

$617

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Sun 12/21

4:06 pm-8:58 am

1 stop15h 52m

Toronto Pearson Intl

Fri 12/26

5:15 pm-10:49 pm

1 stop6h 34m

$637

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ontario from

How to get the cheapest flight ticket from San Antonio to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Region of Ontario?

The month of January is, on average, the cheapest month to fly to Region of Ontario from San Antonio, with most prices found around $353. If you aren’t able to travel during the month of January, then book flights to Region of Ontario from San Antonio during May instead. Flights to Region of Ontario in May, while not as cheap as those in January, still average around $364.

What is the cheapest day to depart on your flight to Region of Ontario?

According to our data, Friday is the cheapest day to fly to Region of Ontario from San Antonio. The lowest ticket price found for a Friday departure recently was $388. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from San Antonio to Region of Ontario on a Tuesday will generally be more expensive and average around $651. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Region of Ontario?

According to our data, the cheapest time of day to fly to Region of Ontario is at noon. momondo users have found flights departing from San Antonio to Region of Ontario at noon for as low as $384. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $651.

What is the cheapest San Antonio to Ontario flight route?

Fly from San Antonio to Toronto Pearson Intl for the best San Antonio - Ontario flight prices

How far in advance should I book a flight to Region of Ontario?

You are more likely to see cheaper flights to Region of Ontario from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $462 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from San Antonio for as low as $360 on momondo.

What cabin class options are available on San Antonio to Ontario flights?

There is only 1 cabin class available to choose from on San Antonio to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Antonio to Region of Ontario flights?

You could potentially save up to 6% on your flight if you consider stops on a San Antonio to Region of Ontario flight.

Cheap San Antonio to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Region of Ontario

Best Price Found

$671

Direct flights

None
The best flight deal from San Antonio to Region of Ontario found on momondo in the last 72 hours is $671
There are no direct flights from San Antonio to Region of Ontario. Popular non-direct route for this connection is San Antonio Airport - Toronto Pearson Intl Airport.
Search flight deals

  • When did momondo last update prices for flights from San Antonio Airport to Ontario?

    Prices for flights from San Antonio Airport to Ontario are updated daily.

  • How many operators does momondo search for flights from San Antonio Airport to Ontario?

  • How old do you have to be to fly from San Antonio Airport to Ontario?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The required travel and health documents for your Ontario trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from San Antonio to Region of Ontario?

Best airlines flying from San Antonio to Region of Ontario

Compare and see reviews for airlines that fly from San Antonio to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $176Free CancellationRating
7.9
8,001 reviews
Search Delta flights
American AirlinesPriceFrom $306Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $328Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
Air CanadaPriceFrom $339Free CancellationRating
7.1
10,416 reviews
Search Air Canada flights
WestJetPriceFrom $370Free CancellationRating
7.2
3,155 reviews
Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Ontario?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Antonio to Ontario. momondo saves you time and could save you money on your trip.

Can I find flights from San Antonio to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from San Antonio which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Antonio to Ontario?

Once all potential San Antonio to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Antonio to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Antonio to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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