Chicago, IL → Harrisburg, PA flight delays
ORD → MDT · all airlines · 243 flights · April 2026 · source: US BTS
This route is delayed
33%of the time, by +64 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
67%
Delayed 3h+
1.7%
Cancelled
4.1%
Avg when late
+64m
Best & worst day to fly
Most on-time
Wednesday
delayed 13%
Worst
Tuesday
delayed 56%
Which airline is most punctual on ORD → MDT?
Republicdelayed 22%
Envoydelayed 28%
Uniteddelayed 34%
Americandelayed 38%
SkyWestdelayed 39%
Frequently asked
How often is the Chicago, IL to Harrisburg, PA flight delayed?
About 33% of ORD → MDT flights arrive late (15+ minutes), by an average of 64 minutes when they do, based on 243 flights in April 2026.
Which airline is most punctual on ORD → MDT?
Republic, delayed 22% of the time — the best of the 5 airlines flying this route.
What is the best day to fly ORD → MDT?
Wednesday is the most on-time (delayed 13%), while Tuesday is the worst (delayed 56%).
Airport overviews