Direct (nonstop) flights from Pasco to Seattle
2 airlines fly nonstop from Tri Cities Airport (PSC) to Seattle Tacoma International (SEA). It's 171 miles (276 km), about 1h 14m in the air. Operated by Alaska Airlines, Delta Air Lines.
Alaska Airlines
Delta Air Lines
Route data last updated: May 23, 2026
Airlines with non-stop flights
AS
Alaska Airlines
DL
Delta Air Lines
Alternative Routes
Other ways to fly from Pasco to Seattle with one stop · direct emits 32 kg CO₂ per passenger
Looking for the return flight?
SEA → PSC: Flights from Seattle to PascoOther direct flights from Pasco
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from Pasco to Seattle?
A nonstop flight from Pasco (PSC) to Seattle (SEA) takes approximately 1 hours and 14 minutes. The distance is 171 miles (276 km).
Which airlines fly nonstop from Pasco to Seattle?
2 airlines: Alaska Airlines, Delta Air Lines.
Is there a nonstop flight from Pasco to Seattle?
Yes. 2 airlines: Alaska Airlines, Delta Air Lines.
How far is Pasco from Seattle?
The flight distance from Pasco to Seattle is 171 miles (276 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Washington DC.
What type of aircraft flies from Pasco to Seattle?
At 1h 14m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Pasco to Seattle?
Roughly 32 kg CO2 per passenger one-way. That's about the same as driving 160 km.
Is the return flight from Seattle to Pasco 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 Pasco 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 Tri Cities Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.