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Uncover the best deals on San Antonio to Ontario flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest SAT - ONT Flights
Useful information for finding best airline tickets from San Antonio International to Ontario International on your next trip.
Cheapest Round Trip Flight
$388
American Airlines
• 1 stop
• 10h 39m
Aug 13 – Aug 17
The cheapest round trip flight from San Antonio to Ontario (SAT-ONT-SAT) is currently $388
Cheapest One way Flight
$229
American Airlines
• 1 stop
• 10h 43m
Aug 09
The cheapest one way flight from San Antonio to Ontario (SAT-ONT) is currently $229
Cheapest Direct Flight
$597
Delta Airlines
• nonstop
• 5h 3m
Aug 13
The cheapest nonstop flight from San Antonio to Ontario (SAT-ONT) is currently $597
Fastest Flight
5h 3m
The fastest nonstop flight from San Antonio to Ontario (SAT-ONT) takes 5h 3m
Top Airlines Flying from San Antonio to Ontario
Latest Flight Deals from San Antonio (SAT) to Ontario (ONT)
Compare and book low fare round-trip air tickets from San Antonio to Ontario. Ideal for travelers with confirmed return itineraries.
Aug 13 - Aug 17, Economy
San Antonio → Ontario
10h 39m
6:20 PM - 10:59 PM • 1 stop
San Antonio → Ontario
8h 24m
12:33 PM - 7:37 PM • 1 stop
American Airlines
Aug 13 - Aug 17, Economy
San Antonio → Ontario
7h 12m
3:43 PM - 6:15 PM • 1 stop
San Antonio → Ontario
10h 46m
7:05 AM - 3:51 PM • 1 stop
American Airlines
Aug 13 - Aug 17, Economy
San Antonio → Ontario
8h 35m
6:00 AM - 9:15 AM • 1 stop
San Antonio → Ontario
9h
12:35 PM - 8:15 PM • 1 stop
Southwest Airlines
Aug 13 - Aug 17, Economy
San Antonio → Ontario
10h
11:15 AM - 3:15 PM • 1 stop
San Antonio → Ontario
7h 15m
4:50 PM - 11:25 PM • 1 stop
Southwest Airlines
Aug 13 - Aug 17, Economy
San Antonio → Ontario
7h 20m
6:40 AM - 9:20 AM • 1 stop
San Antonio → Ontario
9h
12:35 PM - 8:15 PM • 1 stop
Southwest Airlines
Explore competitive one-way airfare options for SAT - ONT flights. Best suited for flexible or open-ended travel plans.
Flying to Ontario soon? We've surfaced some of the most affordable last-minute flights from San Antonio to Ontario, ideal for urgent plans or spontaneous trips.
Looking for the fastest way to Ontario? These direct flight options from SAT to ONT offer both convenience and value—no layovers, just straight to your destination.
Aug 13 - Aug 17, Economy
San Antonio → Ontario
5h 3m
7:30 AM - 8:33 AM • nonstop
San Antonio → Ontario
4h 17m
6:59 PM - 11:56 PM • nonstop
Delta Airlines
Aug 13 - Aug 17, Economy
San Antonio → Ontario
5h 5m
4:49 PM - 5:54 PM • nonstop
San Antonio → Ontario
4h 17m
6:59 PM - 11:56 PM • nonstop
Delta Airlines
Aug 13 - Aug 17, Economy
San Antonio → Ontario
5h 13m
6:15 AM - 7:28 AM • nonstop
San Antonio → Ontario
5h 3m
6:56 PM - 11:59 PM • nonstop
American Airlines
Aug 13 - Aug 17, Economy
San Antonio → Ontario
5h 13m
2:57 PM - 4:10 PM • nonstop
San Antonio → Ontario
5h 3m
6:56 PM - 11:59 PM • nonstop
American Airlines
Aug 13 - Aug 17, Economy
San Antonio → Ontario
5h 13m
2:57 PM - 4:10 PM • nonstop
San Antonio → Ontario
5h 3m
6:56 PM - 11:59 PM • nonstop
Alaska Airlines
FAQs on San Antonio to Ontario Flights
What are the airports in San Antonio?
SAT
What’s the most popular airline flying from SAT to ONT?
The most popular airline flying from San Antonio to Ontario are
Can I fly from SAT to ONT non-stop?
Yes, you can fly SAT to ONT non-stop on
Which airlines fly nonstop between San Antonio and Ontario?
The non-stop flights between San Antonio and Ontario are .
What’s the earliest departure time from SAT to ONT Airport?
The earliest flight leaves SAT at 6:00 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my San Antonio to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from SAT to ONT?
Read the fare rules of the San Antonio to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from San Antonio and Ontario?
operate flights between San Antonio and Ontario
How long does a flight from San Antonio to Ontario take?
It takes approximately 3 hour to fly non-stop from SAT to ONT, which is 1166.09 miles by air.
Which airlines provide the cheapest flights from San Antonio (SAT) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from SAT were found on WN : USD 558
Do I need a passport to fly between SAT and ONT?
No
What’s the latest departure time from SAT to ONT ?
The last flight leaves SAT at 7:10 pm
San Antonio (SAT) to Ontario (ONT): Airport Information
| Origin Airport | San Antonio International , San Antonio, US |
| Destination Airport | Ontario International , Ontario, US |
| Distance | 1166 miles |
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