San Francisco, CA → Chicago, IL flight delays
SFO → ORD · all airlines · 523 flights · April 2026 · source: US BTS
This route is delayed
27%of the time, by +83 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
73%
Delayed 3h+
2.5%
Cancelled
1.3%
Avg when late
+83m
Best & worst day to fly
Most on-time
Saturday
delayed 16%
Worst
Monday
delayed 43%
Which airline is most punctual on SFO → ORD?
Uniteddelayed 21%
Americandelayed 40%
Frequently asked
How often is the San Francisco, CA to Chicago, IL flight delayed?
About 27% of SFO → ORD flights arrive late (15+ minutes), by an average of 83 minutes when they do, based on 523 flights in April 2026.
Which airline is most punctual on SFO → ORD?
United, delayed 21% of the time — the best of the 2 airlines flying this route.
What is the best day to fly SFO → ORD?
Saturday is the most on-time (delayed 16%), while Monday is the worst (delayed 43%).
Airport overviews