Is DL4990 delayed?
No — DL4990 landed in Detroit 28 min early, at 19:39 on Sep 30 (as of Sep 30, 23:40 UTC).
Usually on time: arrived within 15 min of schedule on 11 of the last 15 flights.
28 min early
Official source · Updated
Departure
Birmingham
BHM
Actual
Scheduled 17:17
Sep 30
Arrival
Detroit
DTW
Actual
Scheduled 20:08
Sep 30
Times shown in airport local time
Service date: · Scheduled departure date (America/Chicago)
Market settled: On time.
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 28 min early
Birmingham → Detroit
- 14 min early
Birmingham → Detroit
- 29 min late
Birmingham → Detroit
- 112 min late
Birmingham → Detroit
- On schedule (5 min behind)
Birmingham → Detroit
Is DL4990 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
- Left more than 15 min late
- 34 of 229
- Cancelled today
- 1
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 30, 2026Arrived | Birmingham | Detroit | -28 | |
| Sep 29, 2026Arrived | Birmingham | Detroit | -14 | |
| Sep 28, 2026Arrived | Birmingham | Detroit | 29 | |
| Sep 27, 2026Arrived | Birmingham | Detroit | 112 | |
| Sep 25, 2026Arrived | Birmingham | Detroit | 5 | |
| Sep 24, 2026Arrived | Birmingham | Detroit | -18 | |
| Sep 23, 2026Arrived | Birmingham | Detroit | -8 | |
| Sep 22, 2026Arrived | Birmingham | Detroit | 78 | |
| Sep 21, 2026Arrived | Birmingham | Detroit | 96 | |
| Sep 20, 2026Arrived | Birmingham | Detroit | -1 | |
| Sep 18, 2026Arrived | Birmingham | Detroit | -25 | |
| Sep 17, 2026Arrived | Birmingham | Detroit | -19 | |
| Sep 16, 2026Arrived | Birmingham | Detroit | -22 | |
| Sep 15, 2026Arrived | Birmingham | Detroit | -21 | |
| Sep 14, 2026Arrived | Birmingham | Detroit | -20 |
Email me if DL4990 runs late
We email you if your next DL4990 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.