No delays reported for DL 1389 (IAH → DTW) as of 6:46 PM ET. It arrived on time 91.3% of the time in June-August 2026. When it was late, the average delay was 42 minutes. None were cancelled. Right now there are no reported delays at IAH, DTW.
Looks on time
Next leg IAH → DTW, scheduled 5:20 AM local time. No delays at IAH right now, and it usually runs on time. Weather at IAH (53°F, rain, wind 17 kt gusting 25) could slow departures.
Cancellation risk: Medium 0% of its flights were cancelled in June-August 2026; rough weather at IAH.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Delta for official times.
Before you fly
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| IAH → DTW Houston, TX to Detroit, MI | 5:20 AM → 9:05 AM | 91% |
Local times. Schedules change; check your booking.
How reliable is DL 1389?
| Arrived on time (within 15 min) | 91.3% |
| Average delay when late | 42 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 92 |
Best and worst days to fly DL 1389
DL 1389 was most reliable on Tuesdays (100% on time) and least reliable on Sundays (77%).
| Monday | |
| Tuesday | |
| Wednesday | |
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| Sunday |
Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by Delta to the Department of Transportation.
Other flights IAH → DTW
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the Delta app.
Delta delays and what you're owed · Airline phone numbers
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is DL 1389 delayed today?
Right now there are no reported delays at IAH, DTW. Checked 6:46 PM ET. For this flight's gate and exact status, check the Delta app.
Is DL 1389 usually on time?
DL 1389 arrived within 15 minutes of schedule 91.3% of the time in June-August 2026, with an average delay of 42 minutes when late.
How often is DL 1389 cancelled?
0% of DL 1389 flights were cancelled in June-August 2026.