Direct (nonstop) flights from Portland to Seattle
2 airlines fly nonstop from Portland International (PDX) to Seattle Tacoma International (SEA). It's 129 miles (207 km), about 1h 5m in the air. Operated by Alaska Airlines, Delta Air Lines.
Alaska Airlines
Delta Air Lines
Route data last updated: May 26, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Portland to Seattle with one stop · direct emits 24 kg CO₂ per passenger
Looking for the return flight?
SEA → PDX: Flights from Seattle to PortlandOther direct flights from Portland
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from Portland to Seattle?
A nonstop flight from Portland (PDX) to Seattle (SEA) takes approximately 1 hours and 5 minutes. The distance is 129 miles (207 km).
Which airlines fly nonstop from Portland to Seattle?
2 airlines: Alaska Airlines, Delta Air Lines.
Is there a nonstop flight from Portland to Seattle?
Yes. 2 airlines: Alaska Airlines, Delta Air Lines.
How far is Portland from Seattle?
The flight distance from Portland to Seattle is 129 miles (207 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Portland to Seattle?
At 1h 5m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Portland to Seattle?
Roughly 24 kg CO2 per passenger one-way. That's about the same as driving 120 km.
Is the return flight from Seattle to Portland 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 Portland to Seattle?
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 Portland International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.