DL3957 SDF → DTW

Delta Air Lines · Louisville, KY to Detroit, MI · 139 flights observed, 2025-07-01 to 2026-06-06 · 306 mi

DL3957 covers more than one route in the data window — the stats below are for SDF → DTW, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
67%
Median delay
-3 min
90th percentile
+100 min
Cancellation rate
1%

How often is DL3957 on time?

Across 139 flights on SDF → DTW from 2025-07-01 to 2026-06-06, DL3957 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +100 min or later. 1% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time9267%
16-30 min107%
31-60 min139%
61-120 min139%
2+ hrs107%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073155%+17 min
2025-083190%-4 min
2025-091090%-19 min
2026-032442%+98 min
2026-041136%+53 min
2026-052584%+10 min
2026-06650%+20 min

Performance by day of week

DayFlightsOn-time
Mon1953%
Tue2060%
Wed2085%
Thu2055%
Fri2065%
Sat1984%
Sun2065%

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