Lowest Prices
Uncover the best deals on Ontario to San Antonio flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest ONT - SAT Flights
Useful information for finding best airline tickets from Ontario International to San Antonio International on your next trip.
Cheapest Round Trip Flight
$454
Delta Airlines
• 1 stop
• 8h 54m
Jul 15 – Jul 22
The cheapest round trip flight from Ontario to San Antonio (ONT-SAT-ONT) is currently $454
Cheapest Direct Flight
$373
Delta Airlines
• nonstop
•
Jun 28
The cheapest nonstop flight from Ontario to San Antonio (ONT-SAT) is currently $373
Fastest Flight
7h 25m
The fastest nonstop flight from Ontario to San Antonio (ONT-SAT) takes 7h 25m
Top Airlines Flying from Ontario to San Antonio
Latest Flight Deals from Ontario (ONT) to San Antonio (SAT)
Compare and book low fare round-trip air tickets from Ontario to San Antonio. Ideal for travelers with confirmed return itineraries.
Jul 15 - Jul 22, Economy
Ontario → San Antonio
8h 54m
9:40 AM - 5:14 PM • 1 stop
Ontario → San Antonio
5h 5m
4:46 PM - 5:51 PM • nonstop
Delta Airlines
Jul 15 - Jul 22, Economy
Ontario → San Antonio
10h 30m
2:50 PM - 11:20 PM • 1 stop
Ontario → San Antonio
5h 5m
3:55 PM - 5:00 PM • nonstop
Southwest Airlines
Jul 15 - Jul 22, Economy
Ontario → San Antonio
10h 45m
8:30 AM - 5:15 PM • 1 stop
Ontario → San Antonio
5h 5m
3:55 PM - 5:00 PM • nonstop
Southwest Airlines
Jul 15 - Jul 22, Economy
Ontario → San Antonio
7h 25m
1:30 PM - 8:15 PM • 1 stop
Ontario → San Antonio
5h 5m
3:55 PM - 5:00 PM • nonstop
Southwest Airlines
Jul 15 - Jul 22, Economy
Ontario → San Antonio
10h 25m
4:10 PM - 12:35 AM • 1 stop
Ontario → San Antonio
5h 5m
3:55 PM - 5:00 PM • nonstop
Southwest Airlines
Flying to San Antonio soon? We've surfaced some of the most affordable last-minute flights from Ontario to San Antonio, ideal for urgent plans or spontaneous trips.
Jun 30 - Jul 04, Economy
Ontario → San Antonio
11h 55m
1:05 PM - 10:20 PM • 1 stop
Ontario → San Antonio
7h 15m
4:30 PM - 7:05 PM • 1 stop
Southwest Airlines
Jun 28 - Jul 04, Economy
Ontario → San Antonio
43h 57m
6:00 AM - 6:56 PM • 1 stop
Ontario → San Antonio
9h 18m
7:51 PM - 11:49 PM • 1 stop
Frontier Airlines
Jun 28 - Jul 04, Economy
Ontario → San Antonio
19h 5m
8:50 AM - 10:35 PM • 1 stop
Ontario → San Antonio
8h 55m
4:25 PM - 8:00 PM • 1 stop
Southwest Airlines
Jun 28 - Jul 04, Economy
Ontario → San Antonio
13h 59m
1:50 PM - 12:29 AM • 1 stop
Ontario → San Antonio
10h
5:57 PM - 9:57 PM • 1 stop
United Airlines
Jun 28 - Jul 04, Economy
Ontario → San Antonio
18h 57m
7:13 PM - 8:50 AM • 2 stops
Ontario → San Antonio
8h 48m
6:01 AM - 9:29 AM • 1 stop
American Airlines
Looking for the fastest way to San Antonio? These direct flight options from ONT to SAT offer both convenience and value—no layovers, just straight to your destination.
Jun 28 - Jul 04, Economy
Ontario → San Antonio
- • nonstop
Ontario → San Antonio
- • nonstop
Delta Airlines
Jun 28 - Jul 04, Economy
Ontario → San Antonio
- • nonstop
Ontario → San Antonio
- • nonstop
Alaska Airlines
Jun 28 - Jul 04, Economy
Ontario → San Antonio
- • nonstop
Ontario → San Antonio
- • nonstop
American Airlines
Jun 28 - Jul 04, Economy
Ontario → San Antonio
- • nonstop
Ontario → San Antonio
- • nonstop
Delta Airlines
FAQs on Ontario to San Antonio Flights
What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to SAT?
The most popular airline flying from Ontario to San Antonio are
Can I fly from ONT to SAT non-stop?
Yes, you can fly ONT to SAT non-stop on
Which airlines fly nonstop between Ontario and San Antonio?
The non-stop flights between Ontario and San Antonio are .
What’s the earliest departure time from ONT to SAT Airport?
The earliest flight leaves ONT at 6:00 am and lands in SAT - San Antonio International
What are the airports in San Antonio?
SAT
Can I make changes to my Ontario to San Antonio 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 ONT to SAT?
Read the fare rules of the Ontario to San Antonio 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 Ontario and San Antonio?
operate flights between Ontario and San Antonio
How long does a flight from Ontario to San Antonio take?
It takes approximately 3 hour to fly non-stop from ONT to SAT, which is 1166.09 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to San Antonio (SAT) ?
In the past couple of days, the cheapest tickets to SAT from ONT were found on WN : USD 3675
Do I need a passport to fly between ONT and SAT?
No
What’s the latest departure time from ONT to SAT ?
The last flight leaves ONT at 6:5900 pm
Ontario (ONT) to San Antonio (SAT): Airport Information
| Origin Airport | Ontario International , Ontario, US |
| Destination Airport | San Antonio International , San Antonio, US |
| Distance | 1166 miles |
More Flight Options for Ontario (ONT) and San Antonio (SAT)
Flights from Ontario (ONT)
to Seattle (SEA)
Flights from Ontario (ONT)
to Seattle (SEA)
Flights from Ontario (ONT)
to Las Vegas (LAS)
Flights from Ontario (ONT)
to Las Vegas (LAS)
Flights from Ontario (ONT)
to Honolulu (HNL)
Flights from Ontario (ONT)
to Honolulu (HNL)
Flights from Ontario (ONT)
to St Louis (STL)
Flights from Ontario (ONT)
to St Louis (STL)
Flights from Ontario (ONT)
to Houston (HOU)
Flights from Ontario (ONT)
to Sacramento (SMF)
Flights from Ontario (ONT)
to Sacramento (SMF)
Flights from Ontario (ONT)
to Portland (PDX)
Flights from Ontario (ONT)
to Portland (PDX)
Flights from Ontario (ONT)
to Orlando (MCO)
Flights from Ontario (ONT)
to Orlando (MCO)
Flights from Ontario (ONT)
to Knoxville (TYS)
Flights from Ontario (ONT)
to Knoxville (TYS)
Flights from Ontario (ONT)
to Dallas (DFW)
Flights from Ontario (ONT)
to Dallas (DFW)
Flights from Ontario (ONT)
to Tampa (TPA)
Flights from Atlanta (ATL)
to San Antonio (SAT)
Flights from Orlando (MCO)
to San Antonio (SAT)
Flights from Cleveland (CLE)
to San Antonio (SAT)
Flights from El Paso (ELP)
to San Antonio (SAT)
Flights from Raleigh/Durham (RDU)
to San Antonio (SAT)
Flights from Ontario (ONT)
to San Antonio (SAT)
Flights from Ontario (ONT)
to San Antonio (SAT)
Flights from Boston (BOS)
to San Antonio (SAT)
Flights from Charleston (CHS)
to San Antonio (SAT)
Flights from Tampa (TPA)
to San Antonio (SAT)
Flights from Jacksonville (JAX)
to San Antonio (SAT)
Flights from New York (JFK)
to San Antonio (SAT)
Flights from Baltimore (BWI)
to San Antonio (SAT)
Flights from Cincinnati (CVG)
to San Antonio (SAT)
Flights from Houston (IAH)
to San Antonio (SAT)
Flights from Dallas (DFW)
to San Antonio (SAT)
Flights from Detroit (DTW)
to San Antonio (SAT)
Flights from San Jose (SJC)
to San Antonio (SAT)
Flights from Newark (EWR)
to San Antonio (SAT)
Flights from Newark (EWR)
to San Antonio (SAT)
Cheap flights to North America (NA)
Cheap flights to United States (US)
Cheap flights to California (US-CA)
Cheap flights to Texas (US-TX)
Cheap flights from North America (NA)
Cheap flights from United States (US)
Cheap flights from California (US-CA)
Cheap flights from Texas (US-TX)
Flights to Ontario (ONT)
Flights to Ontario (ONT)
Flights to San Antonio (SAT)
Flights from Ontario (ONT)
Flights from San Antonio (SAT)
Flights from San Antonio (SAT)
to Ontario (ONT)
Flights from San Antonio (SAT)
to Ontario (ONT)
Why Fareleaders for ONT to SAT Plane Tickets
New Deals Everyday
Get the best prices on ONT to SAT flights—we update our fares daily so you never miss a saving.
No Service Fees
Compare hundreds of Ontario to San Antonio flights and secure the best deals—we never add any service fees.