UA4236 TUL → IAH

United Airlines · Tulsa, OK to Houston, TX · 61 flights observed, 2025-08-21 to 2026-02-11 · 429 mi

This flight's scheduled flight time has grown by 14 min since 2025-08 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

UA4236 covers more than one route in the data window — the stats below are for TUL → IAH, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
95%
Median delay
-15 min
90th percentile
+3 min
Cancellation rate
2%

How often is UA4236 on time?

Across 61 flights on TUL → IAH from 2025-08-21 to 2026-02-11, UA4236 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +3 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time5795%
16-30 min00%
31-60 min23%
61-120 min12%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-081090%+0 min
2025-0920100%-12 min
2026-012190%-10 min
2026-029100%-23 min

Performance by day of week

DayFlightsOn-time
Mon10100%
Tue10100%
Wed6100%
Thu1090%
Fri1090%
Sat989%
Sun5100%

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