Ontario CA to Austin (ONT → AUS). We are tracking 5 fares on this route.
Cheapest tracked fare $97 · typical price $184 · you save about $87 (47%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
—
2026-11-07
1 stop
$97
—
2026-11-04
1 stop
$99
—
2026-10-26
1 stop
$112
—
2026-10-17
1 stop
$118
Southwest Airlines
2026-10-10
1 stop
$130
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from Ontario CA to Austin get?
The cheapest fare we have tracked on this route is $97, compared with a typical $184 for a trip of this distance.
Is it cheaper to fly to Austin from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make Ontario CA to Austin cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.