- Cheapest fare
- $110
- Cheapest month
- January
- Direct flights
- Not recently
- Quickest trip
- 4h 34m
Frontier Airlines · Sat, Jan 16
from $110
Usually 1+ stop
1,880 km
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Cheapest month to fly from Ontario to San Antonio
Lowest one-way fare per person in each month. Choose a month to see every date.
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About flights from Ontario to San Antonio
Ontario (ONT) and San Antonio (SAT) are about 1,880 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 4h 34m. Over the next few months, one-way fares start from $110, and January 2027 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Ontario to San Antonio?
The cheapest one-way fare we've seen recently is $110 with Frontier Airlines, departing Saturday, January 16, 2027. Over the coming months, the lowest fare in each month ranges from $110 to $135.
What is the cheapest month to fly from Ontario to San Antonio?
January 2027 currently has the lowest fares, from $110 one way.
Are there direct flights from Ontario to San Antonio?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Ontario to San Antonio?
The quickest journey we've seen takes about 4h 34m. Ontario and San Antonio are around 1,880 km apart.
Which airlines fly from Ontario to San Antonio?
Recent fares on this route were with Frontier Airlines.
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