Cheap flights from Ontario to San Antonio from $212

If you aren’t able to travel during the month of July, then book flights to San Antonio from Region of Ontario during September instead. Flights to San Antonio in September, while not as cheap as those in July, still average around $174.

The cheapest day to depart on your flight to San Antonio is on a Friday when prices can be found for as low as $524. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Wednesday is $1,023.

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

You are more likely to see cheaper flights to San Antonio from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $438 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Region of Ontario for as low as $364 on momondo.

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

No. A direct flight is the cheapest option for a flight between Region of Ontario to San Antonio.

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

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to San Antonio from Region of Ontario according to our data. Air Canada is the first choice among our users, with 57% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 6 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

The number of flights available between Region of Ontario and San Antonio is 6 per week as of July 2026. The most frequent departure day is Mon, with 33% of weekly flights leaving on this day.

Flight times vary depending on what airport in Region of Ontario you fly out of and what airport in San Antonio you fly into. For example, flying from Toronto to Austin takes 3h 30m on average. On the other hand, flying from Ottawa to Austin takes 7h 20m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.