UA434 IAH → LAX

United Airlines · Houston, TX to Los Angeles, CA · 108 flights observed, 2025-10-26 to 2026-03-28 · 1,379 mi

This flight's scheduled flight time has grown by 10 min since 2025-10 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

UA434 covers more than one route in the data window — the stats below are for IAH → LAX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
82%
Median delay
-9 min
90th percentile
+34 min
Cancellation rate
2%

How often is UA434 on time?

Across 108 flights on IAH → LAX from 2025-10-26 to 2026-03-28, UA434 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +34 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time8782%
16-30 min88%
31-60 min66%
61-120 min44%
2+ hrs11%

Performance by month

MonthFlightsOn-timeAvg delay
2025-10683%+0 min
2025-112972%+2 min
2025-122282%0 min
2026-01580%+21 min
2026-021794%-13 min
2026-032785%+1 min

Performance by day of week

DayFlightsOn-time
Mon1681%
Tue1385%
Wed1392%
Thu1681%
Fri1788%
Sat1567%
Sun1681%

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