DL3637 DTW → BUF

Delta Air Lines · Detroit, MI to Buffalo, NY · 21 flights observed, 2026-06-07 to 2026-06-30 · 241 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is +6 min, while the worst 10% run +133 min or later.

DL3637 covers more than one route in the data window — the stats below are for DTW → BUF, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
71%
Median delay
+6 min
90th percentile
+133 min
Cancellation rate
0%

How often is DL3637 on time?

Across 21 flights on DTW → BUF from 2026-06-07 to 2026-06-30, DL3637 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +133 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1571%
16-30 min00%
31-60 min15%
61-120 min210%
2+ hrs314%

Performance by month

MonthFlightsOn-timeAvg delay
2026-062171%+32 min

Performance by day of week

DayFlightsOn-time
Mon450%
Tue425%
Wed3100%
Thu3100%
Fri3100%
SatNo data—
Sun475%

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