UA4594 ORD → DAY

United Airlines · Chicago, IL to Dayton, OH · 169 flights observed, 2026-01-06 to 2026-06-30 · 240 mi

This flight's reliability varies a lot by day of week — 84% on-time on Thursdays vs. 48% on Fridays.

UA4594 covers more than one route in the data window — the stats below are for ORD → DAY, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
70%
Median delay
-4 min
90th percentile
+103 min
Cancellation rate
2%

How often is UA4594 on time?

Across 169 flights on ORD → DAY from 2026-01-06 to 2026-06-30, UA4594 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +103 min or later. 2% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time11670%
16-30 min95%
31-60 min1610%
61-120 min127%
2+ hrs138%

Performance by month

MonthFlightsOn-timeAvg delay
2026-012157%+42 min
2026-022584%-7 min
2026-033070%+25 min
2026-042962%+17 min
2026-053165%+40 min
2026-063080%+2 min

Performance by day of week

DayFlightsOn-time
Mon2467%
Tue2167%
Wed2471%
Thu2584%
Fri2548%
Sat2370%
Sun2483%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…