DL5109 DTW → IAD

Delta Air Lines · Detroit, MI to Washington, DC · 14 flights observed, 2025-12-20 to 2026-01-02 · 383 mi

This flight has been on time less than half the time (46%) — expect a real chance of a delay.

DL5109 covers more than one route in the data window — the stats below are for DTW → IAD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
46%
Median delay
+18 min
90th percentile
+66 min
Cancellation rate
7%

How often is DL5109 on time?

Across 14 flights on DTW → IAD from 2025-12-20 to 2026-01-02, DL5109 arrived within 15 minutes of schedule 46% of the time. The median arrival delay was +18 min, and the worst 10% of flights arrived +66 min or later. 7% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time646%
16-30 min18%
31-60 min431%
61-120 min18%
2+ hrs18%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121145%+19 min
2026-01250%+25 min

Performance by day of week

DayFlightsOn-time
Mon10%
Tue250%
Wed250%
Thu20%
Fri2100%
Sat250%
Sun250%

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