DL1503 DTW → IAH

Delta Air Lines · Detroit, MI to Houston, TX · 20 flights observed, 2026-02-12 to 2026-03-06 · 1,075 mi

This flight has been getting more reliable recently — 2026-03's on-time rate (100%) is well above the 71% average from earlier months.

DL1503 covers more than one route in the data window — the stats below are for DTW → IAH, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
80%
Median delay
-14 min
90th percentile
+47 min
Cancellation rate
0%

How often is DL1503 on time?

Across 20 flights on DTW → IAH from 2026-02-12 to 2026-03-06, DL1503 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +47 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1680%
16-30 min15%
31-60 min315%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-021471%-3 min
2026-036100%-13 min

Performance by day of week

DayFlightsOn-time
Mon367%
Tue3100%
Wed3100%
Thu475%
Fri475%
SatNo data—
Sun367%

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