Direct (nonstop) flights from Seattle to San Diego
3 airlines fly nonstop from Seattle Tacoma International (SEA) to San Diego International Airport (SAN). It's 1,049 miles (1,689 km), about 2h 51m in the air. Operated by Alaska Airlines, Delta Air Lines, Southwest Airlines.
Alaska Airlines
Delta Air Lines
Southwest Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
AS
Alaska Airlines
DL
Delta Air Lines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Seattle to San Diego with one stop · direct emits 177 kg CO₂ per passenger
Looking for the return flight?
SAN → SEA: Flights from San Diego to SeattleOther direct flights from Seattle
Direct flights from San Diego (SAN)
Frequently Asked Questions
How long is the direct flight from Seattle to San Diego?
A nonstop flight from Seattle (SEA) to San Diego (SAN) takes approximately 2 hours and 51 minutes. The distance is 1,049 miles (1,689 km).
Which airlines fly nonstop from Seattle to San Diego?
3 airlines: Alaska Airlines, Delta Air Lines, Southwest Airlines.
Is there a nonstop flight from Seattle to San Diego?
Yes. 3 airlines: Alaska Airlines, Delta Air Lines, Southwest Airlines.
How far is Seattle from San Diego?
The flight distance from Seattle to San Diego 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 Seattle to San Diego?
At 2h 51m, 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 Seattle to San Diego?
Roughly 177 kg CO2 per passenger one-way. That's about the same as driving 885 km.
Is the return flight from San Diego 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 San Diego?
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.