DL1438 JFK → MIA

Delta Air Lines · New York, NY to Miami, FL · 127 flights observed, 2025-07-01 to 2026-01-04 · 1,089 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -5 min, while the worst 10% run +73 min or later.

DL1438 covers more than one route in the data window — the stats below are for JFK → MIA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
70%
Median delay
-5 min
90th percentile
+73 min
Cancellation rate
2%

How often is DL1438 on time?

Across 127 flights on JFK → MIA from 2025-07-01 to 2026-01-04, DL1438 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +73 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time8770%
16-30 min1613%
31-60 min65%
61-120 min76%
2+ hrs86%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072752%+28 min
2025-083181%0 min
2025-093077%+31 min
2025-103177%+17 min
2025-11425%+18 min
2026-0110%+53 min

Performance by day of week

DayFlightsOn-time
Mon1776%
Tue1867%
Wed1872%
Thu1856%
Fri1782%
Sat1872%
Sun1867%

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