Delta Air Lines
Is DL3639 delayed?
Yes — DL3639 landed in Buffalo 26 min late, at 08:12 on Sep 7 (as of Sep 7, 12:12 UTC). Over its last 4 recorded arrivals, 3 landed more than 15 min late.
Each route and date is shown separately. Confirm that both airports match your booking.
26 min late
Official source · Updated
Departure
Detroit
DTW
Actual
Scheduled 07:06
Sep 7
Arrival
Buffalo
BUF
Actual
Scheduled 07:46
Sep 7
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
On schedule (7 min behind)
Official source · Updated
Departure
Buffalo
BUF
Actual
Scheduled 08:59
Sep 7
Arrival
Detroit
DTW
Actual
Scheduled 09:39
Sep 7
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.
- On schedule (7 min behind)
Buffalo → Detroit
- 26 min late
Detroit → Buffalo
- 233 min late
Buffalo → Detroit
- 118 min late
Detroit → Buffalo
Is DL3639 usually late?
Observation window: Sep 1, 2026 – Oct 1, 2026
Percentages and delay figures appear once 10 arrivals are recorded.
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. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Detroit (DTW) departures
- Left more than 15 min late
- 39 of 272
- Cancelled today
- 1
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 7, 2026Arrived | Buffalo | Detroit | 7 | |
| Sep 7, 2026Arrived | Detroit | Buffalo | 26 | |
| Sep 4, 2026Arrived | Buffalo | Detroit | 233 | |
| Sep 4, 2026Arrived | Detroit | Buffalo | 118 |
Email me if DL3639 runs late
We email you if your next DL3639 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.