Chicago, IL → San Francisco, CA flight delays
ORD → SFO · all airlines · 523 flights · April 2026 · source: US BTS
This route is delayed
34%of the time, by +66 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
66%
Delayed 3h+
1.9%
Cancelled
1.3%
Avg when late
+66m
Best & worst day to fly
Most on-time
Tuesday
delayed 19%
Worst
Monday
delayed 51%
Which airline is most punctual on ORD → SFO?
Uniteddelayed 34%
Americandelayed 35%
Frequently asked
How often is the Chicago, IL to San Francisco, CA flight delayed?
About 34% of ORD → SFO flights arrive late (15+ minutes), by an average of 66 minutes when they do, based on 523 flights in April 2026.
Which airline is most punctual on ORD → SFO?
United, delayed 34% of the time — the best of the 2 airlines flying this route.
What is the best day to fly ORD → SFO?
Tuesday is the most on-time (delayed 19%), while Monday is the worst (delayed 51%).
Airport overviews