Direct (nonstop) flights from San Antonio to San Diego
1 airline flys nonstop from San Antonio International (SAT) to San Diego International Airport (SAN). It's 1,130 miles (1,818 km), about 2h 53m in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 31, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from San Antonio to San Diego with one stop · direct emits 191 kg CO₂ per passenger
Looking for the return flight?
SAN → SAT: Flights from San Diego to San AntonioOther direct flights from San Antonio
Direct flights from San Diego (SAN)
Frequently Asked Questions
How long is the direct flight from San Antonio to San Diego?
A nonstop flight from San Antonio (SAT) to San Diego (SAN) takes approximately 2 hours and 53 minutes. The distance is 1,130 miles (1,818 km).
Which airlines fly nonstop from San Antonio to San Diego?
Just Southwest Airlines.
Is there a nonstop flight from San Antonio to San Diego?
Yes. 1 airline: Southwest Airlines.
How far is San Antonio from San Diego?
The flight distance from San Antonio to San Diego is 1,130 miles (1,818 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 Antonio to San Diego?
At 2h 53m, 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 San Diego?
Roughly 191 kg CO2 per passenger one-way. That's about the same as driving 955 km.
Is the return flight from San Diego 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 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 San Antonio International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.