Direct (nonstop) flights from San Antonio to Seattle
1 airline flys nonstop from San Antonio International (SAT) to Seattle Tacoma International (SEA). It's 1,774 miles (2,855 km), about 4h 34m in the air. Operated by Alaska Airlines.
Alaska Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
AS
Alaska Airlines
Alternative Routes
Other ways to fly from San Antonio to Seattle with one stop · direct emits 300 kg CO₂ per passenger
Looking for the return flight?
SEA → SAT: Flights from Seattle to San AntonioOther direct flights from San Antonio
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from San Antonio to Seattle?
A nonstop flight from San Antonio (SAT) to Seattle (SEA) takes approximately 4 hours and 34 minutes. The distance is 1,774 miles (2,855 km).
Which airlines fly nonstop from San Antonio to Seattle?
Just Alaska Airlines.
Is there a nonstop flight from San Antonio to Seattle?
Yes. 1 airline: Alaska Airlines.
How far is San Antonio from Seattle?
The flight distance from San Antonio to Seattle is 1,774 miles (2,855 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from San Antonio to Seattle?
At 4h 34m, 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 Antonio to Seattle?
Roughly 300 kg CO2 per passenger one-way. That's about the same as driving 1,500 km.
Is the return flight from Seattle to San Antonio 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 Antonio 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 Antonio International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.