Cheap flights from Seattle to Portland

One-way fares from $122 · SEA → PDX · prices found by travellers in the last 48 hours

Compare all dates Portland → Seattle
Cheapest fare
$122

Alaska Airlines · Wed, Dec 16

Cheapest month
December

from $122

Direct flights
Yes

Alaska Airlines

Flight time
0h 55m

240 km

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Cheapest month to fly from Seattle to Portland

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $200
  2. December 2026 Cheapest $122

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Alaska Airlines
Depart08:46 Wed, Dec 16SEA → PDX 4h 06m · 1 stop
$122one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to Portland

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in PortlandCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in PortlandTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in PortlandPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in PortlandCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Seattle to Portland

Seattle (SEA) and Portland (PDX) are about 240 km apart. Direct flights take around 0h 55m, and recent direct fares were with Alaska Airlines. Over the next few months, one-way fares start from $122, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Seattle to Portland?

The cheapest one-way fare we've seen recently is $122 with Alaska Airlines, departing Wednesday, December 16, 2026. Over the coming months, the lowest fare in each month ranges from $122 to $200.

What is the cheapest month to fly from Seattle to Portland?

December 2026 currently has the lowest fares, from $122 one way.

Are there direct flights from Seattle to Portland?

Yes. Recent direct fares were with Alaska Airlines.

How long is the flight from Seattle to Portland?

A direct flight takes about 0h 55m. Seattle and Portland are around 240 km apart.

Which airlines fly from Seattle to Portland?

Recent fares on this route were with Alaska Airlines.

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