Delta Air Lines
Is DL4639 delayed?
No, DL4639 landed in Buffalo 22 min early, at 07:53 on Nov 13 (as of Nov 13, 12:53 UTC).
Usually on time: arrived within 15 min of schedule on 16 of the last 16 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
22 min early
Official source · Updated
Departure
Detroit
DTW
Actual
Scheduled 07:17
Nov 13
Arrival
Buffalo
BUF
Actual
Scheduled 08:15
Nov 13
Times shown in airport local time
Service date: · Scheduled departure date (America/Detroit)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
17 min early
Official source · Updated
Departure
Buffalo
BUF
Actual
Scheduled 09:00
Nov 13
Arrival
Detroit
DTW
Actual
Scheduled 10:12
Nov 13
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 17 min early
Buffalo → Detroit
- 22 min early
Detroit → Buffalo
- 19 min early
Buffalo → Detroit
- 26 min early
Detroit → Buffalo
- 27 min early
Buffalo → Detroit
Is DL4639 usually late?
Period: Oct 15, 2026 – Nov 14, 2026
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
Detroit (DTW) departures
- Left more than 15 min late
- 44 of 60
- Cancelled today
- 55
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 13, 2026Arrived | Buffalo | Detroit | -17 | |
| Nov 13, 2026Arrived | Detroit | Buffalo | -22 | |
| Nov 12, 2026Arrived | Buffalo | Detroit | -19 | |
| Nov 12, 2026Arrived | Detroit | Buffalo | -26 | |
| Nov 11, 2026Arrived | Buffalo | Detroit | -27 | |
| Nov 11, 2026Arrived | Detroit | Buffalo | -11 | |
| Nov 10, 2026Arrived | Buffalo | Detroit | -27 | |
| Nov 10, 2026Arrived | Detroit | Buffalo | -19 | |
| Nov 9, 2026Arrived | Buffalo | Detroit | -22 | |
| Nov 9, 2026Arrived | Detroit | Buffalo | -19 | |
| Nov 7, 2026Arrived | St Louis | Minneapolis | -3 | |
| Nov 7, 2026Arrived | Minneapolis | St Louis | 15 | |
| Oct 24, 2026Arrived | St Louis | Minneapolis | -30 | |
| Oct 24, 2026Arrived | Minneapolis | St Louis | -7 | |
| Oct 17, 2026Arrived | St Louis | Minneapolis | -19 | |
| Oct 17, 2026Arrived | Minneapolis | St Louis | -19 |