Seattle, WA → Chicago, IL flight delays
SEA → ORD · all airlines · 465 flights · April 2026 · source: US BTS
This route is delayed
20%of the time, by +86 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
80%
Delayed 3h+
2.2%
Cancelled
1.1%
Avg when late
+86m
Best & worst day to fly
Most on-time
Saturday
delayed 2%
Worst
Friday
delayed 31%
Which airline is most punctual on SEA → ORD?
Uniteddelayed 15%
Alaskadelayed 16%
Deltadelayed 22%
Americandelayed 27%
Frequently asked
How often is the Seattle, WA to Chicago, IL flight delayed?
About 20% of SEA → ORD flights arrive late (15+ minutes), by an average of 86 minutes when they do, based on 465 flights in April 2026.
Which airline is most punctual on SEA → ORD?
United, delayed 15% of the time — the best of the 4 airlines flying this route.
What is the best day to fly SEA → ORD?
Saturday is the most on-time (delayed 2%), while Friday is the worst (delayed 31%).
Airport overviews