Cheap flights from Ontario to San Antonio from $167
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Antonio departing on 7/1. 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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United Airlines flights from Region of Ontario to San Antonio
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American Airlines flights from Region of Ontario to San Antonio
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How to get the cheapest flight ticket from Region of Ontario to San Antonio
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 San Antonio?
If you aren’t able to travel during the month of September, then book flights to San Antonio from Region of Ontario during February instead. Flights to San Antonio in February, while not as cheap as those in September, still average around $339.
What is the cheapest day to depart on your flight to San Antonio?
The cheapest day to depart on your flight to San Antonio is on a Wednesday when prices can be found for as low as $333. 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 Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $478.
What is the cheapest time of day to depart on your flight to San Antonio?
According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Region of Ontario to San Antonio in the evening for as low as $316. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly at noon, with an average ticket price of $476. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to San Antonio?
You are more likely to see cheaper flights to San Antonio from Region of Ontario when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $386 when searching 23 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 $238 on momondo.
What is the cheapest airline that flies from Ontario to San Antonio?
United Airlines, WestJet, and American Airlines are the most popular carriers operating from Ontario to San Antonio
What airlines fly to San Antonio?
Air Canada, United Airlines and American Airlines 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 48% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 5 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.
How many flights depart from Region of Ontario to San Antonio on average per week?
The number of flights available between Region of Ontario and San Antonio is 7 per week as of June 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
How long does it take to fly to San Antonio?
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 29m on average. On the other hand, flying from Ottawa to Austin takes 7h 13m 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.
Cheap Region of Ontario to San Antonio flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to San Antonio
When did momondo last update prices for flights from Ontario to San Antonio Airport?
Prices for flights from Ontario to San Antonio Airport refresh daily.
How many operators does momondo search for flights from Ontario to San Antonio Airport?
The number of operators available for flights from Ontario to San Antonio Airport is 5 as of June 2025.
How old do you have to be to fly from Ontario to San Antonio Airport?
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 Ontario to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The travel and health documents required for your trip to San Antonio Airport 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 San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Region of Ontario to San Antonio
Compare and see reviews for airlines that fly from Region of Ontario to San Antonio with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $264 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $277 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $281 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $326 | Free Cancellation | Rating 7.2 2,868 reviews |
Traveling to a place near San Antonio?
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Why should I use momondo to find a flight deal from Ontario to San Antonio?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Antonio from Ontario.
Can I find flights from Ontario to San Antonio with flexible booking policies on momondo?
All flight searches from Ontario to San Antonio on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Ontario to San Antonio?
Once all potential Ontario to San Antonio 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 Ontario to San Antonio right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Ontario to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Antonio and let you know when they change.