DL1143 IAH → LAX

Delta Air Lines · Houston, TX to Los Angeles, CA · 55 flights observed, 2025-12-20 to 2026-06-26 · 1,379 mi

This flight's reliability varies a lot by day of week — 100% on-time on Thursdays vs. 63% on Sundays.

DL1143 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
78%
Median delay
-5 min
90th percentile
+84 min
Cancellation rate
2%

How often is DL1143 on time?

Across 55 flights on IAH → LAX from 2025-12-20 to 2026-06-26, DL1143 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +84 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time4278%
16-30 min36%
31-60 min00%
61-120 min59%
2+ hrs47%

Performance by month

MonthFlightsOn-timeAvg delay
2025-12875%+54 min
2026-01367%+57 min
2026-052090%+7 min
2026-062370%+24 min

Performance by day of week

DayFlightsOn-time
Mon978%
Tue978%
Wed786%
Thu8100%
Fri1080%
Sat333%
Sun863%

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