Ontario CA to Phoenix (ONT → PHX). We are tracking 8 fares on this route.
Cheapest tracked fare $52 · typical price $93 · you save about $41 (44%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Southwest Airlines
2026-12-01
Direct
$52
Southwest Airlines
2026-10-31
Direct
$57
Southwest Airlines
2026-09-28
Direct
$60
Southwest Airlines
2026-09-30
Direct
$60
Southwest Airlines
2026-09-29
Direct
$60
Southwest Airlines
2026-10-03
Direct
$60
Southwest Airlines
2026-10-01
Direct
$63
Southwest Airlines
2026-10-02
Direct
$78
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 Phoenix get?
The cheapest fare we have tracked on this route is $52, compared with a typical $93 for a trip of this distance.
Is it cheaper to fly to Phoenix 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 Phoenix 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.