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Cheap flights from Ontario to San Antonio from $59

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 2/14. 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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Find the cheapest flights from Ontario to San Antonio

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to San Antonio that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to San Antonio.

Cheap last minute flights

Planning a quick getaway from Ontario to San Antonio? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Antonio, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ontario to San Antonio

Find recent round-trip train or bus tickets from Ontario to San Antonio.

All round-trip flight deals to San Antonio

The cheapest plane tickets to San Antonio found on KAYAK recently.
2:37 pm - 7:35 pmONT-SAT
26h 58m1 stop
1:02 pm - 11:47 pmSAT-ONT
12h 45m1 stop
$118Frontier
Find Deal
Thu, Jan 23 - Thu, Jan 30
7:45 am - 11:56 amONT-SAT
26h 11m1 stop
8:20 pm - 7:14 amSAT-ONT
12h 54m1 stop
$121Frontier
Find Deal
Wed, Jan 8 - Thu, Jan 9
6:10 am - 1:28 pmONT-SAT
5h 18m1 stop
6:31 am - 9:56 amSAT-ONT
5h 25m1 stop
$219American Airlines
Find Deal
Wed, Jan 15 - Wed, Jan 22
11:59 pm - 10:07 amONT-SAT
8h 08m1 stop
2:28 pm - 7:31 pmSAT-ONT
7h 03m1 stop
$226American Airlines
Find Deal
Thu, Jan 9 - Sat, Jan 11
1:00 pm - 12:27 amONT-SAT
9h 27m1 stop
7:25 pm - 11:53 pmSAT-ONT
6h 28m1 stop
$256Delta
Find Deal
Wed, Jan 8 - Mon, Jan 13
5:10 am - 1:21 pmONT-SAT
6h 11m1 stop
5:48 pm - 9:57 pmSAT-ONT
6h 09m1 stop
$266United Airlines
Find Deal
Fri, Jan 10 - Sun, Jan 12
5:10 am - 1:21 pmONT-SAT
6h 11m1 stop
8:49 am - 8:29 pmSAT-ONT
13h 40m2 stops
$294United Airlines
Find Deal
Thu, Jan 9 - Mon, Jan 13
3:10 pm - 10:25 pmONT-SAT
5h 15m1 stop
6:00 am - 8:30 amSAT-ONT
4h 30m1 stop
$402Southwest
Find Deal
Wed, May 28 - Sun, Jun 1
5:45 am - 2:50 pmONT-SAT
7h 05m1 stop
7:45 am - 3:20 pmSAT-ONT
9h 35m2 stops
$406Southwest
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Fri, Jan 10 - Sun, Jan 12
5:10 pm - 12:40 amONT-SAT
5h 30m1 stop
7:45 am - 12:26 pmSAT-ONT
6h 41m1 stop
$536Delta
Find Deal
Wed, Jan 8 - Sun, Jan 12
12:59 am - 1:18 pmONT-SAT
10h 19m1 stop
$59Frontier
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Fri, Feb 14
7:56 am - 7:30 pmONT-SAT
9h 34m1 stop
$60Frontier
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Thu, Jan 16
12:48 pm - 8:22 pmONT-SAT
5h 34m1 stop
$108American Airlines
Find Deal
Tue, Jan 28
12:48 pm - 11:02 pmONT-SAT
8h 14m2 stops
$113American Airlines
Find Deal
Tue, Jan 28
10:47 am - 6:50 pmONT-SAT
6h 03m1 stop
$148United Airlines
Find Deal
Tue, Jan 21
1:45 pm - 9:03 pmONT-SAT
5h 18m1 stop
$158United Airlines
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Fri, Jan 17
1:21 pm - 8:54 pmONT-SAT
5h 33m1 stop
$163Delta
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Sat, Feb 22
1:05 pm - 12:27 amONT-SAT
9h 22m1 stop
$193Delta
Find Deal
Fri, Feb 21
3:30 pm - 11:50 pmONT-SAT
6h 20m2 stops
$308Southwest
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Sun, Jun 15
8:25 am - 5:55 pmONT-SAT
7h 30m2 stops
$373Southwest
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Sun, Dec 29
12:59 am - 1:28 pmONT-SAT
10h 29m1 stop
2:18 pm - 7:09 amSAT-ONT
18h 51m1 stop
$402Frontier
Find Deal
Sat, Dec 21 - Thu, Jan 2
12:59 am - 1:28 pmONT-SAT
10h 29m1 stop
1:02 pm - 5:35 pmSAT-ONT
6h 33m1 stop
$403Frontier
Find Deal
Sat, Dec 21 - Mon, Jan 13
12:59 am - 1:28 pmONT-SAT
10h 29m1 stop
2:18 pm - 1:00 pmSAT-ONT
24h 42m1 stop
$404Frontier
Find Deal
Sat, Dec 21 - Thu, Jan 2
1:42 pm - 11:44 pmONT-SAT
8h 02m1 stop
8:49 am - 8:29 pmSAT-ONT
13h 40m2 stops
$617United Airlines
Find Deal
Sun, Dec 22 - Mon, Jan 13
6:10 am - 5:43 pmONT-SAT
9h 33m2 stops
11:30 am - 4:41 pmSAT-ONT
7h 11m1 stop
$622American Airlines
Find Deal
Tue, Dec 24 - Wed, Dec 25
6:10 am - 5:43 pmONT-SAT
9h 33m2 stops
9:19 am - 4:41 pmSAT-ONT
9h 22m2 stops
$667American Airlines
Find Deal
Tue, Dec 24 - Wed, Dec 25
10:29 pm - 10:03 amONT-SAT
9h 34m1 stop
6:50 am - 12:20 pmSAT-ONT
7h 30m1 stop
$767Delta
Find Deal
Sat, Dec 21 - Fri, Dec 27
9:55 am - 8:35 pmONT-SAT
8h 40m2 stops
5:10 am - 9:00 amSAT-ONT
5h 50m1 stop
$772Southwest
Find Deal
Sat, Dec 21 - Fri, Dec 27
1:42 pm - 11:44 pmONT-SAT
8h 02m1 stop
6:55 pm - 10:29 pmSAT-ONT
5h 34m1 stop
$782United Airlines
Find Deal
Sat, Dec 21 - Sat, Dec 28
6:40 pm - 1:20 amONT-SAT
4h 40m1 stop
5:10 am - 9:00 amSAT-ONT
5h 50m1 stop
$823Southwest
Find Deal
Sun, Dec 22 - Mon, Dec 23

Frontier flights from Ontario to San Antonio

Our best Frontier deals on Ontario to San Antonio flight tickets
Frontier
Jan 23
ONT2:37 pmOntario
26h 58m
1 stop
SAT7:35 pmSan Antonio
Jan 30
SAT1:02 pmSan Antonio
12h 45m
1 stop
ONT11:47 pmOntario
Frontier
Jan 8
ONT7:45 amOntario
26h 11m
1 stop
SAT11:56 amSan Antonio
Jan 9
SAT8:20 pmSan Antonio
12h 54m
1 stop
ONT7:14 amOntario
Frontier
Jan 23
ONT6:50 pmOntario
22h 45m
1 stop
SAT7:35 pmSan Antonio
Jan 26
SAT8:20 pmSan Antonio
12h 51m
1 stop
ONT7:11 amOntario

American Airlines flights from Ontario to San Antonio

Our best American Airlines deals on Ontario to San Antonio flight tickets
American Airlines
Jan 15
ONT6:10 amOntario
5h 18m
1 stop
SAT1:28 pmSan Antonio
Jan 22
SAT6:31 amSan Antonio
5h 25m
1 stop
ONT9:56 amOntario
American Airlines
Jan 9
ONT11:59 pmOntario
8h 08m
1 stop
SAT10:07 amSan Antonio
Jan 11
SAT2:28 pmSan Antonio
7h 03m
1 stop
ONT7:31 pmOntario
American Airlines
Jan 16
ONT2:44 pmOntario
7h 25m
1 stop
SAT12:09 amSan Antonio
Jan 20
SAT6:00 amSan Antonio
5h 09m
1 stop
ONT9:09 amOntario

See travel insights to San Antonio from

How to get the cheapest flight ticket from 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 Ontario during October instead. Flights to San Antonio in October, while not as cheap as those in September, still average around $188.

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 Tuesday when prices can be found for as low as $208. 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 $352.

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 Ontario to San Antonio in the evening for as low as $175. 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 in the morning, with an average ticket price of $264. Departure times in the morning 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?

In general, most travelers find the cheapest time to book a flight to San Antonio is about 59 days prior to their departure date when tickets on average are $347. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Ontario for as low as $98 on momondo.

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

You could potentially save up to 47% on your flight if you consider stops on a Ontario to San Antonio flight.

How have Ontario to San Antonio flight prices changed over time?

As of December 2024, prices for Ontario to San Antonio flights are approximately 76% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to San Antonio (ONT to SAT) flight deals and tips

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

Best Price Found

$59

Fastest flight time

4h 57m

Direct flights

None

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Ontario in the past 72 hours is $59. The best round-trip flight deal from Ontario to San Antonio found on momondo in the last 72 hours is $118.
The fastest flight from Ontario to San Antonio takes 4h 57m
There are no direct flights from Ontario to San Antonio. Popular non-direct route for this connection is Ontario Airport - San Antonio Airport.
There is 1 airport near San Antonio: San Antonio (SAT)

  • How far is Ontario to San Antonio by plane?

    Ontario and San Antonio are 1167.5 mi apart from one another. A reasonable flight in good conditions will take 4h 57m.

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

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

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

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

    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 Ontario Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The necessary travel and health documents for your San Antonio Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to San Antonio?


Best airlines flying from Ontario to San Antonio

Compare and see reviews for airlines that fly from Ontario to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $82Free CancellationRating
6.3
8,120 reviews
Search Spirit Airlines flights
FrontierPriceFrom $114Free CancellationRating
6.1
3,478 reviews
Search Frontier flights
DeltaPriceFrom $236Free CancellationRating
8.0
8,600 reviews
Search Delta flights
American AirlinesPriceFrom $277Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,048 reviews
Search United Airlines flights
SouthwestPriceFrom $326Free CancellationRating
8.1
4,836 reviews
Search Southwest flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to San Antonio. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Ontario to San Antonio flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to San Antonio.

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

Yes momondo offers price alerts on flights to San Antonio from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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