$104 Cheap Delta flights Portland (PDX) to Ontario (ONT)

View $104 flight on Tue, May 12, 2026Opens in a new window

$104 Cheap Delta flights Portland (PDX) to Ontario (ONT)

Prices were available within the past 7 days and start at $104 for one-way flights and $217 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, May 12 - Thu, May 21
PDX
Portland
ONT
Ontario
$217 Roundtrip, found 6 days ago
$217
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, May 12 from Portland to Ontario, returning Thu, May 21, priced at $217 found 6 days ago
Delta
Mon, May 4 - Fri, May 8
PDX
Portland
ONT
Ontario
$243 Roundtrip, found 1 hour ago
$243
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, May 4 from Portland to Ontario, returning Fri, May 8, priced at $243 found 1 hour ago
Delta
Thu, Apr 16 - Sun, Apr 19
PDX
Portland
ONT
Ontario
$288 Roundtrip, found 1 day ago
$288
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 16 from Portland to Ontario, returning Sun, Apr 19, priced at $288 found 1 day ago

Alternative airports near Ontario

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

Select flight to Los Angeles - Ontario Intl. ONT. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $190
ONT
Los Angeles - Ontario Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $190

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

October is typically the cheapest month to fly

From $77 - $157 per traveler.

Travel information

Origin airport
Portland Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Delta
Distance
1342 km
Average flight time
2 hours 45 mins

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