What is the cheapest airline that flies from San Antonio to Ontario?

Delta, American Airlines, and United Airlines are the most popular carriers operating from San Antonio to Ontario

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

Prices for flights from San Antonio Airport to Ontario refresh daily.

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

As of November 2025, there is 1 operator available to choose from 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Antonio Airport to Ontario.

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

The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 148 Cheap Flights from San Antonio to Ontario in 2025/26

1 adult

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Find the cheapest flights from San Antonio to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:24 p.m. - 10:26 a.m.SAT-YOW

16h 02m1 stop

2:15 p.m. - 8:12 p.m.YOW-SAT

6h 57m1 stop

C$ 471United Airlines

Find Deal

Tue, 10 Mar - Wed, 11 Mar

5:24 p.m. - 10:26 a.m.SAT-YOW

16h 02m1 stop

2:15 p.m. - 11:12 p.m.YOW-SAT

9h 57m2 stops

C$ 485United Airlines

Find Deal

Tue, 10 Mar - Wed, 11 Mar

10:26 a.m. - 3:10 p.m.SAT-YUL

27h 44m1 stop

5:25 p.m. - 9:30 a.m.YUL-SAT

17h 05m2 stops

C$ 495Multiple Airlines

Find Deal

Sun, 25 Jan - Sat, 31 Jan

1:55 p.m. - 4:23 p.m.SAT-YUL

25h 28m1 stop

8:00 a.m. - 11:26 p.m.YUL-SAT

16h 26m1 stop

C$ 506Multiple Airlines

Find Deal

Thu, 4 Dec - Thu, 11 Dec

4:57 p.m. - 11:59 p.m.SAT-YYZ

6h 02m1 stop

6:05 a.m. - 10:55 a.m.YYZ-SAT

5h 50m1 stop

C$ 772Delta

Find Deal

Mon, 24 Nov - Fri, 28 Nov

4:57 p.m. - 11:59 p.m.SAT-YUL

6h 02m1 stop

7:00 a.m. - 5:19 p.m.YUL-SAT

11h 19m1 stop

C$ 784Delta

Find Deal

Mon, 24 Nov - Fri, 28 Nov

6:00 a.m. - 3:24 p.m.SAT-YUL

8h 24m2 stops

2:29 p.m. - 11:47 p.m.YUL-SAT

10h 18m2 stops

C$ 834American Airlines

Find Deal

Thu, 4 Dec - Thu, 11 Dec

6:51 a.m. - 4:43 p.m.SAT-YYZ

8h 52m1 stop

6:10 a.m. - 12:02 p.m.YYZ-SAT

6h 52m1 stop

C$ 862American Airlines

Find Deal

Sun, 21 Dec - Fri, 26 Dec

4:57 p.m. - 11:59 p.m.SAT-YYZ

6h 02m1 stop

6:05 a.m. - 10:55 a.m.YYZ-SAT

5h 50m1 stop

C$ 870WestJet

Find Deal

Fri, 21 Nov - Sun, 30 Nov

4:06 p.m. - 8:58 a.m.SAT-YYZ

15h 52m1 stop

5:15 p.m. - 10:49 p.m.YYZ-SAT

6h 34m1 stop

C$ 899WestJet

Find Deal

Sun, 21 Dec - Fri, 26 Dec

Delta flights from San Antonio to Region of Ontario

Our best Delta deals on San Antonio to Region of Ontario flight tickets

Delta

24 Nov

SAT4:57 p.m.San Antonio

6h 02m

1 stop

YYZ11:59 p.m.Toronto Pearson Intl

28 Nov

YYZ6:05 a.m.Toronto Pearson Intl

5h 50m

1 stop

SAT10:55 a.m.San Antonio

C$ 772

Find similar

Delta

24 Nov

SAT4:57 p.m.San Antonio

6h 02m

1 stop

YUL11:59 p.m.Montreal Pierre Elliott Trudeau Intl

28 Nov

YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl

11h 19m

1 stop

SAT5:19 p.m.San Antonio

C$ 784

Find similar

Delta

10 Mar

SAT5:20 a.m.San Antonio

9h 00m

1 stop

YYZ3:20 p.m.Toronto Pearson Intl

11 Mar

YYZ6:00 p.m.Toronto Pearson Intl

7h 14m

1 stop

SAT12:14 a.m.San Antonio

C$ 798

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

21 Nov

SAT4:57 p.m.San Antonio

6h 02m

1 stop

YYZ11:59 p.m.Toronto Pearson Intl

30 Nov

YYZ6:05 a.m.Toronto Pearson Intl

5h 50m

1 stop

SAT10:55 a.m.San Antonio

C$ 870

Find similar

WestJet

21 Dec

SAT4:06 p.m.San Antonio

15h 52m

1 stop

YYZ8:58 a.m.Toronto Pearson Intl

26 Dec

YYZ5:15 p.m.Toronto Pearson Intl

6h 34m

1 stop

SAT10:49 p.m.San Antonio

C$ 899

Find similar

WestJet

21 Dec

SAT4:45 p.m.San Antonio

6h 14m

1 stop

YYZ11:59 p.m.Toronto Pearson Intl

23 Dec

YYZ6:30 p.m.Toronto Pearson Intl

28h 23m

2 stops

SAT9:53 p.m.San Antonio

C$ 901

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San AntonioOttawa

SAT - YOW

SATYOW

San Antonio

Tue 10/3

5:24 p.m.-10:26 a.m.

1 stop16h 02m

Ottawa

Wed 11/3

2:15 p.m.-8:12 p.m.

1 stop6h 57m

C$ 471

San AntonioOttawa

SAT - YOW

SATYOW

San Antonio

Tue 10/3

5:24 p.m.-10:26 a.m.

1 stop16h 02m

Ottawa

Wed 11/3

2:15 p.m.-11:12 p.m.

2 stops9h 57m

C$ 485

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Sun 25/1

10:26 a.m.-3:10 p.m.

1 stop27h 44m

Montreal Pierre Elliott Trudeau Intl

Sat 31/1

5:25 p.m.-9:30 a.m.

2 stops17h 05m

C$ 495

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Thu 4/12

1:55 p.m.-4:23 p.m.

1 stop25h 28m

Montreal Pierre Elliott Trudeau Intl

Thu 11/12

8:00 a.m.-11:26 p.m.

1 stop16h 26m

C$ 506

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Mon 24/11

4:57 p.m.-11:59 p.m.

1 stop6h 02m

Toronto Pearson Intl

Fri 28/11

6:05 a.m.-10:55 a.m.

1 stop5h 50m

C$ 772

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Mon 24/11

4:57 p.m.-11:59 p.m.

1 stop6h 02m

Montreal Pierre Elliott Trudeau Intl

Fri 28/11

7:00 a.m.-5:19 p.m.

1 stop11h 19m

C$ 784

San AntonioMontreal

SAT - YUL

SATYUL

San Antonio

Thu 4/12

6:00 a.m.-3:24 p.m.

2 stops8h 24m

Montreal Pierre Elliott Trudeau Intl

Thu 11/12

2:29 p.m.-11:47 p.m.

2 stops10h 18m

C$ 834

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Sun 21/12

6:51 a.m.-4:43 p.m.

1 stop8h 52m

Toronto Pearson Intl

Fri 26/12

6:10 a.m.-12:02 p.m.

1 stop6h 52m

C$ 862

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Fri 21/11

4:57 p.m.-11:59 p.m.

1 stop6h 02m

Toronto Pearson Intl

Sun 30/11

6:05 a.m.-10:55 a.m.

1 stop5h 50m

C$ 870

San AntonioToronto

SAT - YYZ

SATYYZ

San Antonio

Sun 21/12

4:06 p.m.-8:58 a.m.

1 stop15h 52m

Toronto Pearson Intl

Fri 26/12

5:15 p.m.-10:49 p.m.

1 stop6h 34m

C$ 899

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

In general, January is the cheapest month to fly from San Antonio to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 498. If you are unable to visit Region of Ontario during the month of January, then departing from San Antonio during the month May is also very affordable. Most momondo users find prices during this month for around C$ 514.

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

The cheapest day to depart from San Antonio to Region of Ontario is on a Tuesday. Travellers who choose to depart for Region of Ontario on a Tuesday will often find tickets for as low as C$ 408. The most expensive day to fly to Region of Ontario is Wednesday, with ticket prices averaging around C$ 781.

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

Our most recent data shows that the best time of day to fly to Region of Ontario is at noon. Flights from San Antonio to Region of Ontario during this time can be as low as C$ 498. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 690 on average. Flights to Region of Ontario from San Antonio in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 C$ 651 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 C$ 508 on momondo.

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

Direct flights	None

There are no direct flights from San Antonio to Region of Ontario. There are no popular flight routes from San Antonio to Region of Ontario.

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 refresh daily.
How many operators does momondo search for flights from San Antonio Airport to Ontario?
As of November 2025, there is 1 operator available to choose from 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Antonio Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from San Antonio to Region of Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Antonio to Region of Ontario is Airbus A220-300 (100.00% of total bookings).

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
WestJet	PriceFrom C$ 514	Free Cancellation	Rating 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?

Finding the right flight to Ontario from San Antonio is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

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?

momondo provides multiple filters to help you find the best flight to Ontario from San Antonio. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.