San Francisco, CA → San Diego, CA flight delays
SFO → SAN · all airlines · 514 flights · April 2026 · source: US BTS
This route is delayed
38%of the time, by +55 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
62%
Delayed 3h+
0.4%
Cancelled
0.2%
Avg when late
+55m
Best & worst day to fly
Most on-time
Saturday
delayed 17%
Worst
Monday
delayed 51%
Which airline is most punctual on SFO → SAN?
Alaskadelayed 7%
Uniteddelayed 20%
Southwestdelayed 58%
SkyWestdelayed 63%
Frequently asked
How often is the San Francisco, CA to San Diego, CA flight delayed?
About 38% of SFO → SAN flights arrive late (15+ minutes), by an average of 55 minutes when they do, based on 514 flights in April 2026.
Which airline is most punctual on SFO → SAN?
Alaska, delayed 7% of the time — the best of the 4 airlines flying this route.
What is the best day to fly SFO → SAN?
Saturday is the most on-time (delayed 17%), while Monday is the worst (delayed 51%).
Airport overviews