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Domestic route

Cheap flights from Seattle to Portland

Seattle-Tacoma International Airport (SEA) to Portland International Airport (PDX). 129 miles, 40m nonstop.

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SEA to PDX at a glance

Computed from airline schedules and the fares we track for this route. Refreshed several times a day.

Distance
129 milesgreat-circle
Typical flight time
40mnonstop, gate to gate
Nonstop airlines
DLASNKF94 airlinesDelta, Alaska, Spirit
Nonstop flights per day
19all airlines combined
Cheapest month
January 2027over the next six months
Best day to fly
Tuesday16% less than Sunday
Time difference
Same time zone

Seattle to Portland

Round trips from $46

Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 5.

Cheapest month: January 2027

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Seattle to Portland fares by month

Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.

  1. September 2026from Wed, Sep 30$62
  2. October 2026from Wed, Oct 7$51
  3. November 2026from Wed, Nov 4$51
  4. December 2026from Wed, Dec 16$51
  5. January 2027from Tue, Jan 5$46
  6. February 2027from Tue, Feb 2$47

Airlines flying Seattle to Portland

4 airlines fly nonstop with 19 departures a day combined.

Connecting options

Every itinerary on this route is nonstop or uses an unusual connection; run a search for specifics.

Tips for this route

  • Delta, Alaska, Spirit and Frontier all fly SEA to PDX nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
  • Departing on a Tuesday averages 16% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
  • Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
  • At 129 miles this is a short hop of 40m, so an early-morning departure, which is usually the cheapest and most punctual of the day, costs you little sleep.
Flying the other way? Portland to SeattleFares, airlines and tips for PDX to SEA.

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Seattle to Portland: common questions

How long is the flight from Seattle to Portland?

A nonstop flight from Seattle (SEA) to Portland (PDX) takes about 40m gate to gate, covering 129 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.

Which airlines fly nonstop from SEA to PDX?

Delta Air Lines, Alaska Airlines, Spirit Airlines and Frontier Airlines operate nonstop flights from Seattle (SEA) to Portland (PDX), with 19 nonstop departures a day between them.

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

Over the next six months, January 2027 has the lowest round-trip fares from Seattle (SEA) to Portland (PDX), starting at $46 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.

How far in advance should I book Seattle to Portland flights?

Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.

What is the time difference between Seattle and Portland?

Portland is in the same time zone as Seattle, so there is no clock change. SEA is on America/Los Angeles time and PDX on America/Los Angeles time. Departure and arrival times in search results are always shown in local time at each airport.

Related routes

Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.

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