$142 Cheap United flights Ontario (ONT) to Portland (PDX)

View $142 flight on Sat, Feb 14, 2026Opens in a new window

$142 Cheap United flights Ontario (ONT) to Portland (PDX)

Prices were available within the past 7 days and start at $142 for one-way flights and $201 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Feb 14 - Thu, Feb 19
ONT
Ontario
PDX
Portland
$201 Roundtrip, found 3 days ago
$201
Roundtrip
found 3 days ago
Select United flight, departing Sat, Feb 14 from Ontario to Portland, returning Thu, Feb 19, priced at $201 found 3 days ago
United
Sat, Feb 14 - Thu, Feb 19
ONT
Ontario
PDX
Portland
$209 Roundtrip, found 3 days ago
$209
Roundtrip
found 3 days ago
Select United flight, departing Sat, Feb 14 from Ontario to Portland, returning Thu, Feb 19, priced at $209 found 3 days ago
United
Sat, Feb 14 - Thu, Feb 19
ONT
Ontario
PDX
Portland
$239 Roundtrip, found 3 days ago
$239
Roundtrip
found 3 days ago
Select United flight, departing Sat, Feb 14 from Ontario to Portland, returning Thu, Feb 19, priced at $239 found 3 days ago
United
Sat, Feb 14 - Thu, Feb 19
ONT
Ontario
PDX
Portland
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select United flight, departing Sat, Feb 14 from Ontario to Portland, returning Thu, Feb 19, priced at $243 found 3 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.

Alternative airports near Portland

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Portland Intl. PDX. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $303
PDX
Portland Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $303
Flights from Ontario (ONT) to Portland (PDX)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Portland Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
1342 km
Average flight time
2 hours 28 mins