Direct (nonstop) flights from Seattle to Portland
2 airlines fly nonstop from Seattle Tacoma International (SEA) to Portland International (PDX). It's 129 miles (207 km), about 1h 1m in the air. Operated by Alaska Airlines, Delta Air Lines.
Alaska Airlines
Delta Air Lines
Route data last updated: May 30, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Seattle to Portland with one stop · direct emits 24 kg CO₂ per passenger
Looking for the return flight?
PDX → SEA: Flights from Portland to SeattleOther direct flights from Seattle
Direct flights from Portland (PDX)
Frequently Asked Questions
How long is the direct flight from Seattle to Portland?
A nonstop flight from Seattle (SEA) to Portland (PDX) takes approximately 1 hours and 1 minutes. The distance is 129 miles (207 km).
Which airlines fly nonstop from Seattle to Portland?
2 airlines: Alaska Airlines, Delta Air Lines.
Is there a nonstop flight from Seattle to Portland?
Yes. 2 airlines: Alaska Airlines, Delta Air Lines.
How far is Seattle from Portland?
The flight distance from Seattle to Portland is 129 miles (207 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Seattle to Portland?
At 1h 1m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Seattle to Portland?
Roughly 24 kg CO2 per passenger one-way. That's about the same as driving 120 km.
Is the return flight from Portland to Seattle also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Seattle to Portland?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Seattle Tacoma International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.