Is DL3870 delayed?
No delay reported yet — DL3870 is scheduled to leave Detroit at 14:04 on Sep 30 and reach Buffalo at 14:44 (as of Sep 30, 08:18 UTC).
Usually on time: arrived within 15 min of schedule on 23 of the last 36 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
No live update yet
Showing the published schedule until live times are reported.
Update time unavailable
Departure
Detroit
DTW
Scheduled
Sep 30
Arrival
Buffalo
BUF
Scheduled
Sep 30
Times shown in airport local time
Service date: · Scheduled departure date (America/Detroit)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
No live update yet
Showing the published schedule until live times are reported.
Update time unavailable
Departure
Buffalo
BUF
Scheduled
Sep 30
Arrival
Detroit
DTW
Scheduled
Sep 30
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 18 min late
Buffalo → Detroit
- On schedule (6 min behind)
Detroit → Buffalo
- 22 min late
Detroit → Buffalo
- On schedule (8 min behind)
Buffalo → Detroit
- 23 min late
Detroit → Buffalo
Is DL3870 usually late?
Observation window: Aug 31, 2026 – Sep 30, 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. 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
No departures recorded yet today.
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 29, 2026Arrived | Buffalo | Detroit | 18 | |
| Sep 29, 2026Arrived | Detroit | Buffalo | 6 | |
| Sep 28, 2026Arrived | Detroit | Buffalo | 22 | |
| Sep 27, 2026Arrived | Buffalo | Detroit | 8 | |
| Sep 27, 2026Arrived | Detroit | Buffalo | 23 | |
| Sep 26, 2026Arrived | Buffalo | Detroit | 171 | |
| Sep 26, 2026Arrived | Detroit | Buffalo | 140 | |
| Sep 25, 2026Arrived | Buffalo | Detroit | 13 | |
| Sep 25, 2026Arrived | Detroit | Buffalo | 11 | |
| Sep 24, 2026Arrived | Buffalo | Detroit | 10 | |
| Sep 24, 2026Arrived | Detroit | Buffalo | -11 | |
| Sep 23, 2026Arrived | Buffalo | Detroit | -4 | |
| Sep 23, 2026Arrived | Detroit | Buffalo | 4 | |
| Sep 22, 2026Arrived | Buffalo | Detroit | 0 | |
| Sep 22, 2026Arrived | Detroit | Buffalo | 7 | |
| Sep 21, 2026Arrived | Buffalo | Detroit | -14 | |
| Sep 21, 2026Arrived | Detroit | Buffalo | 17 | |
| Sep 20, 2026Arrived | Buffalo | Detroit | 6 | |
| Sep 20, 2026Arrived | Detroit | Buffalo | 5 | |
| Sep 19, 2026Arrived | Buffalo | Detroit | 18 | |
| Sep 19, 2026Arrived | Detroit | Buffalo | 11 | |
| Sep 18, 2026Arrived | Buffalo | Detroit | 52 | |
| Sep 18, 2026Arrived | Detroit | Buffalo | 5 | |
| Sep 17, 2026Arrived | Buffalo | Detroit | 66 | |
| Sep 17, 2026Arrived | Detroit | Buffalo | 10 | |
| Sep 16, 2026Arrived | Buffalo | Detroit | 13 | |
| Sep 16, 2026Arrived | Detroit | Buffalo | 11 | |
| Sep 15, 2026Arrived | Buffalo | Detroit | 5 | |
| Sep 14, 2026Arrived | Buffalo | Detroit | 37 | |
| Sep 12, 2026Arrived | Detroit | Buffalo | 21 | |
| Sep 11, 2026Arrived | Detroit | Buffalo | 3 | |
| Sep 10, 2026Arrived | Detroit | Buffalo | -1 | |
| Sep 9, 2026Arrived | Buffalo | Detroit | 19 | |
| Sep 9, 2026Arrived | Detroit | Buffalo | 4 | |
| Sep 8, 2026Arrived | Buffalo | Detroit | -6 | |
| Sep 8, 2026Arrived | Detroit | Buffalo | -7 |
Email me if DL3870 runs late
We email you if your next DL3870 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.