$106 Cheap Frontier Airlines flights Ontario (ONT) to Portland (PDX)

View $106 flight on Wed, Mar 25, 2026Opens in a new window

$106 Cheap Frontier Airlines flights Ontario (ONT) to Portland (PDX)

Prices were available within the past 7 days and start at $106 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Jan 28 - Mon, Feb 2
ONT
Ontario
PDX
Portland
$154 Roundtrip, found 2 days ago
$154
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Jan 28 from Ontario to Portland, returning Mon, Feb 2, priced at $154 found 2 days ago

Find the cheapest month to fly from Ontario (ONT) to Portland (PDX)

October is typically the cheapest month to fly

From $80 - $237 per traveler.
Flights from Ontario (ONT) to Portland (PDX)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Portland Intl.
Distance
1342 km
Average flight time
3 hours 31 mins