UA4231 IAH → BTR

United Airlines · Houston, TX to Baton Rouge, LA · 21 flights observed, 2026-04-30 to 2026-05-20 · 253 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -15 min, while the worst 10% run +48 min or later.

UA4231 covers more than one route in the data window — the stats below are for IAH → BTR, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
81%
Median delay
-15 min
90th percentile
+48 min
Cancellation rate
0%

How often is UA4231 on time?

Across 21 flights on IAH → BTR from 2026-04-30 to 2026-05-20, UA4231 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +48 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1781%
16-30 min00%
31-60 min314%
61-120 min15%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-0410%+77 min
2026-052085%-7 min

Performance by day of week

DayFlightsOn-time
Mon3100%
Tue367%
Wed367%
Thu367%
Fri367%
Sat3100%
Sun3100%

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