UA1239 ORD → RNO

United Airlines · Chicago, IL to Reno, NV · 12 flights observed, 2025-12-04 to 2026-03-25 · 1,671 mi

UA1239 covers more than one route in the data window — the stats below are for ORD → RNO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
67%
Median delay
-10 min
90th percentile
+106 min
Cancellation rate
0%

How often is UA1239 on time?

Across 12 flights on ORD → RNO from 2025-12-04 to 2026-03-25, UA1239 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +106 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time867%
16-30 min00%
31-60 min18%
61-120 min217%
2+ hrs18%

Performance by month

MonthFlightsOn-timeAvg delay
2025-12667%+19 min
2026-03667%+24 min

Performance by day of week

DayFlightsOn-time
Mon250%
Tue367%
Wed367%
Thu2100%
Fri250%
SatNo data—
SunNo data—

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