UA303 ORD → MIA

United Airlines · Chicago, IL to Miami, FL · 24 flights observed, 2026-03-05 to 2026-03-28 · 1,197 mi

This flight has been on time less than half the time (48%) — expect a real chance of a delay.

UA303 covers more than one route in the data window — the stats below are for ORD → MIA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
48%
Median delay
+22 min
90th percentile
+116 min
Cancellation rate
4%

How often is UA303 on time?

Across 24 flights on ORD → MIA from 2026-03-05 to 2026-03-28, UA303 arrived within 15 minutes of schedule 48% of the time. The median arrival delay was +22 min, and the worst 10% of flights arrived +116 min or later. 4% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1148%
16-30 min522%
31-60 min29%
61-120 min29%
2+ hrs313%

Performance by month

MonthFlightsOn-timeAvg delay
2026-032348%+35 min

Performance by day of week

DayFlightsOn-time
Mon30%
Tue367%
Wed367%
Thu450%
Fri450%
Sat425%
Sun2100%

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