Cheap Flights from Ontario to San Antonio
No deal from Ontario to San Antonio has cleared our price bar yet. What we have seen on the route is below.
Across 2 months of observations from Ontario to San Antonio, the lowest round-trip fare we recorded was $183, in October. The typical fare was $262. October was the cheapest month we saw and September the dearest.
The most recent price we saw on this route was $202 on Frontier, seen Oct 31. It is an unverified observation and may have changed.
See every deal from Ontario, to San Antonio, or the return direction San Antonio to Ontario.
Latest price we saw: Ontario to San Antonio
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Ontario (ONT) to San Antonio (SAT) | $202 | 8.7¢ | Dec 3 – Dec 11 | Frontier | Oct 31 | Check price |
Price history: Ontario to San Antonio
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $183 | $279 | 143 |
| Sep 2026 | $193 | $245 | 86 |
Frequently asked questions
How many flight deals from Ontario to San Antonio are on Sparkflights right now?
There are 0 verified deals from Ontario to San Antonio on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Ontario to San Antonio?
The lowest fare we've recorded from Ontario to San Antonio is $183, based on 229 price observations over 2 months.
How much does a flight from Ontario to San Antonio cost?
The typical round-trip fare we observed from Ontario to San Antonio is $262, against a recorded low of $183. These are observations, not quotes.
When is the cheapest month to fly Ontario to San Antonio?
October was the cheapest month we observed from Ontario to San Antonio and September the dearest, over 2 months of data.
What is the current price from Ontario to San Antonio?
The most recent fare our sweep saw from Ontario to San Antonio is $202, on Oct 31. It is an unverified observation rather than a verified deal, so check it before booking.