Direct (nonstop) flights from San Diego to Seattle
3 airlines fly nonstop from San Diego International Airport (SAN) to Seattle Tacoma International (SEA). It's 1,049 miles (1,689 km), about 3h 11m in the air. Operated by Alaska Airlines, Delta Air Lines, Southwest Airlines.
Alaska Airlines
Delta Air Lines
Southwest Airlines
Route data last updated: May 28, 2026
Airlines with non-stop flights
AS
Alaska Airlines
DL
Delta Air Lines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from San Diego to Seattle with one stop · direct emits 177 kg CO₂ per passenger
Looking for the return flight?
SEA → SAN: Flights from Seattle to San DiegoOther direct flights from San Diego
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from San Diego to Seattle?
A nonstop flight from San Diego (SAN) to Seattle (SEA) takes approximately 3 hours and 11 minutes. The distance is 1,049 miles (1,689 km).
Which airlines fly nonstop from San Diego to Seattle?
3 airlines: Alaska Airlines, Delta Air Lines, Southwest Airlines.
Is there a nonstop flight from San Diego to Seattle?
Yes. 3 airlines: Alaska Airlines, Delta Air Lines, Southwest Airlines.
How far is San Diego from Seattle?
The flight distance from San Diego to Seattle is 1,049 miles (1,689 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from San Diego to Seattle?
At 3h 11m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from San Diego to Seattle?
Roughly 177 kg CO2 per passenger one-way. That's about the same as driving 885 km.
Is the return flight from Seattle to San Diego 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 San Diego 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 San Diego International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.