UA4485 ORD → STL

United Airlines · Chicago, IL to St. Louis, MO · 32 flights observed, 2026-03-29 to 2026-04-29 · 258 mi

This flight's reliability varies a lot by day of week — 80% on-time on Wednesdays vs. 40% on Mondays.

UA4485 covers more than one route in the data window — the stats below are for ORD → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
55%
Median delay
+13 min
90th percentile
+89 min
Cancellation rate
3%

How often is UA4485 on time?

Across 32 flights on ORD → STL from 2026-03-29 to 2026-04-29, UA4485 arrived within 15 minutes of schedule 55% of the time. The median arrival delay was +13 min, and the worst 10% of flights arrived +89 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1755%
16-30 min413%
31-60 min413%
61-120 min310%
2+ hrs310%

Performance by month

MonthFlightsOn-timeAvg delay
2026-03367%+58 min
2026-042854%+23 min

Performance by day of week

DayFlightsOn-time
Mon540%
Tue560%
Wed580%
Thu367%
Fri425%
Sat475%
Sun540%

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