Chicago, IL → San Diego, CA flight delays
ORD → SAN · all airlines · 333 flights · April 2026 · source: US BTS
This route is delayed
37%of the time, by +63 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
63%
Delayed 3h+
2.7%
Cancelled
0.6%
Avg when late
+63m
Best & worst day to fly
Most on-time
Saturday
delayed 23%
Worst
Friday
delayed 54%
Which airline is most punctual on ORD → SAN?
Uniteddelayed 28%
Alaskadelayed 28%
Americandelayed 54%
Frequently asked
How often is the Chicago, IL to San Diego, CA flight delayed?
About 37% of ORD → SAN flights arrive late (15+ minutes), by an average of 63 minutes when they do, based on 333 flights in April 2026.
Which airline is most punctual on ORD → SAN?
United, delayed 28% of the time — the best of the 3 airlines flying this route.
What is the best day to fly ORD → SAN?
Saturday is the most on-time (delayed 23%), while Friday is the worst (delayed 54%).
Airport overviews