UA5580 STL → IAH

United Airlines · St. Louis, MO to Houston, TX · 28 flights observed, 2026-05-21 to 2026-06-29 · 667 mi

This flight has been getting more reliable recently — 2026-06's on-time rate (75%) is well above the 50% average from earlier months.

UA5580 covers more than one route in the data window — the stats below are for STL → IAH, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
68%
Median delay
0 min
90th percentile
+100 min
Cancellation rate
0%

How often is UA5580 on time?

Across 28 flights on STL → IAH from 2026-05-21 to 2026-06-29, UA5580 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +100 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1968%
16-30 min27%
31-60 min27%
61-120 min311%
2+ hrs27%

Performance by month

MonthFlightsOn-timeAvg delay
2026-05850%+24 min
2026-062075%+30 min

Performance by day of week

DayFlightsOn-time
Mon580%
TueNo data—
Wed560%
Thu667%
Fri650%
SatNo data—
Sun683%

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