Cheap flights from Portland to Ontario

Search for the cheapest air tickets from Portland to Ontario

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Recently booked flights from Portland to Ontario

From
Portland

To
Ontario

Depart date
14.09.2025

Price
$426 / 1551ر.ق

American Airlines (AA)

Alaska Airlines (AS)

Delta Air Lines (DL)

05:13 → 11:56

1 stop

American Airlines

PDX — ONT

- - - T - - S

05:16 → 11:56

1 stop

American Airlines

PDX — ONT

M T W - F S -

15:23 → 21:48

1 stop

American Airlines

PDX — ONT

M - - T - - S