Cheap flights from Portland from $48

Our data suggests that currently, the cheapest flights from Portland are being offered by American Airlines, Alaska Airlines, and Allegiant Air. For example, American Airlines flights from Portland to San Francisco, start at $36, Alaska Airlines flights from Portland to Oakland, California cost around $38, and Allegiant Air flights from Portland to Provo are around $63.

Currently, the cheapest flight from Portland found by our users is for $40 to Ontario. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $317 to travel from Portland to Ontario.

Los Angeles, Seattle and San Francisco are currently the destinations served most frequently from Portland, with 28, 27 and 18 flights per day on average, respectively.

Airlines including American Airlines, Delta and Alaska Airlines frequently fly from Portland. You can view other airlines by performing a quick search in the form above.

If you are looking for a cheap first class flight, consider flights to Los Angeles, for which the starting price of a first class seat can be as low as $395.

Prices for flights from Portland Airport refresh daily.

As of December 2025, there are 53 operators available to choose from for flights from Portland Airport.

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport.

The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.