Delta Air Lines
Is DL3988 delayed?
No — DL3988 landed in Dulles on schedule (9 min behind), at 22:53 on Sep 29 (as of Sep 30, 02:54 UTC).
Usually on time: arrived within 15 min of schedule on 15 of the last 26 flights.
On schedule (9 min behind)
Official source · Updated
Departure
Detroit
DTW
Actual
Scheduled 21:43
Sep 29
Arrival
Dulles
IAD
Actual
Scheduled 22:44
Sep 29
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
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- On schedule (9 min behind)
Detroit → Dulles
- 16 min late
Detroit → Dulles
- 50 min late
Detroit → Dulles
- 25 min late
Detroit → Dulles
- On schedule (12 min behind)
Detroit → Dulles
Is DL3988 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.
Dulles (IAD) departures
- Left more than 15 min late
- 0 of 0
- Cancelled today
- 2
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 29, 2026Arrived | Detroit | Dulles | 9 | |
| Sep 28, 2026Arrived | Detroit | Dulles | 16 | |
| Sep 27, 2026Arrived | Detroit | Dulles | 50 | |
| Sep 25, 2026Arrived | Detroit | Dulles | 25 | |
| Sep 24, 2026Arrived | Detroit | Dulles | 12 | |
| Sep 23, 2026Arrived | Detroit | Dulles | 25 | |
| Sep 22, 2026Arrived | Detroit | Dulles | 9 | |
| Sep 21, 2026Arrived | Detroit | Dulles | -3 | |
| Sep 20, 2026Arrived | Detroit | Dulles | 10 | |
| Sep 19, 2026Arrived | Detroit | Dulles | 2 | |
| Sep 18, 2026Arrived | Detroit | Dulles | 18 | |
| Sep 17, 2026Arrived | Detroit | Dulles | 7 | |
| Sep 16, 2026Arrived | Detroit | Dulles | 15 | |
| Sep 15, 2026Arrived | Detroit | Dulles | 13 | |
| Sep 14, 2026Arrived | Detroit | Dulles | 2 | |
| Sep 13, 2026Arrived | Detroit | Dulles | 33 | |
| Sep 12, 2026Arrived | Detroit | Dulles | 9 | |
| Sep 11, 2026Arrived | Detroit | Dulles | 1 | |
| Sep 10, 2026Arrived | Detroit | Dulles | 9 | |
| Sep 9, 2026Arrived | Detroit | Dulles | 24 | |
| Sep 8, 2026Arrived | Detroit | Dulles | 14 | |
| Sep 7, 2026Arrived | Detroit | Dulles | 25 | |
| Sep 6, 2026Arrived | Detroit | Dulles | 23 | |
| Sep 5, 2026Arrived | Detroit | Dulles | -28 | |
| Sep 4, 2026Arrived | Detroit | Dulles | 17 | |
| Sep 1, 2026Arrived | Detroit | Dulles | -21 |
Email me if DL3988 runs late
We email you if your next DL3988 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.