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Home / Ontario — San Antonio

Cheap flights Ontario — San Antonio

Ontario (ONT, US) San Antonio (SAT, US)
from $110 1 879 km ~2h 43m 2 flights found 1 airlines cheapest on Saturday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $110 on 16.01.2027
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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Fr
Sa
Su
December 2026
Mo
Tu
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January 2027
Mo
Tu
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Prices found for 2 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
16 Jan 2027, Sat
Frontier Airlines F9 1500
17:30
ONT Ontario International Airport
22:04
SAT San Antonio International Airport
4h 34m 1 stop
Farera
$110
View this ticket
14 Nov 2026, Sat
Frontier Airlines F9 1262
22:52
ONT Ontario International Airport
03:32
SAT San Antonio International Airport
4h 40m 1 stop
Farera
$135
View this ticket
Route characteristics
Distance
1 879 km
Flight time
2h 43m
Time difference
+2h
Minimum price
from $110 (16.01.2027)
Average price
$123
Maximum price
$135
Cheapest day
Saturday
Departure airports (1)
ONT Ontario International Airport
Arrival airports (1)
SAT San Antonio International Airport
Airlines (1)
F9 Frontier Airlines
Agencies (1)
Farera
Price trend by month
November 2026
from $135
avg $135
1 flights
January 2027
from $110
avg $110
1 flights
Airlines — cheapest prices 1
Frontier Airlines
Frontier Airlines
Low-cost 2 flights · 2 days
$110
Where to buy tickets 1
Farera
2 tickets · 2 days
from $110
Airports

From — Ontario (1)

  • ONT Ontario International Airport

To — San Antonio (1)

  • SAT San Antonio International Airport
Other destinations from Ontario
Albuquerque
US
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Nantucket
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Adelaide
AU
San Andres Island
CO
Malaga
ES · Hub
Auckland
NZ
Almaty
KZ
Alicante
ES
Ahmedabad
IN
Amsterdam
NL · Hub
Anchorage
US
Frequently asked questions about the route Ontario — San Antonio
How long is the flight from Ontario to San Antonio?
Approximate flight time — 2h 43m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Ontario to San Antonio?
The straight-line distance — 1 879 km.
How much do flights from Ontario to San Antonio cost?
The minimum price over 3 months — from $110 on 16.01.2027.
What is the average ticket price?
The average price — $123. Range: $110 — $135.
What is the time difference between Ontario and San Antonio?
The difference — +2h.
From which airports does Ontario operate flights?
From Ontario: ONT (Ontario International Airport).
To which airports in San Antonio do flights arrive?
To San Antonio: SAT (San Antonio International Airport).
Which airlines fly this route?
This route is served by 1 airline: Frontier Airlines.
Which day of the week is cheapest?
The cheapest day of the week — Saturday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Ontario — San Antonio

Flights Ontario — San Antonio is a popular route. The straight-line distance is 1 879 km. Flight time 2h 43m. Time difference +2h.

From Ontario (ONT) flights depart from 1 airport: ONT. To San Antonio (SAT) — 1 arrival airport: SAT.

1 airline operate on this route: Frontier Airlines.

The minimum price for the next 3 months — from $110 (16.01.2027). The cheapest dates are highlighted in the calendar above.

The average ticket price — $123, ranging from $110 to $135. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Saturday.

Other destinations in United States from Ontario
Philadelphia
US
Oklahoma City
US
Omaha
US
Orlando
US
Everett
US
West Palm Beach
US
Portland
US
Palm Springs
US

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