UA6099 IAH → STL

United Airlines · Houston, TX to St. Louis, MO · 14 flights observed, 2025-08-19 to 2025-09-24 · 667 mi

This flight has been getting more reliable recently — 2025-09's on-time rate (100%) is well above the 67% average from earlier months.

UA6099 covers more than one route in the data window — the stats below are for IAH → STL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
86%
Median delay
-17 min
90th percentile
+15 min
Cancellation rate
0%

How often is UA6099 on time?

Across 14 flights on IAH → STL from 2025-08-19 to 2025-09-24, UA6099 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +15 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1286%
16-30 min214%
31-60 min00%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-08667%-5 min
2025-098100%-19 min

Performance by day of week

DayFlightsOn-time
MonNo data—
Tue683%
Wed6100%
ThuNo data—
Fri250%
SatNo data—
SunNo data—

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