No delays reported for DL 2172 (SAN → DTW) as of 6:51 PM ET. It arrived on time 80.6% of the time in June-August 2026. When it was late, the average delay was 37 minutes. None were cancelled. Right now there are no reported delays at SAN, DTW.
May not fly today
Should be in the air from SAN, scheduled to land at DTW at 10:15 PM local time. This flight number flew about 5 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Low 0% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check Delta for official times.
What to do now
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Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| SAN → DTW San Diego, CA to Detroit, MI | 2:40 PM → 10:15 PM | 81% |
Local times. Schedules change; check your booking.
How reliable is DL 2172?
| Arrived on time (within 15 min) | 80.6% |
| Average delay when late | 37 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 72 |
Best and worst days to fly DL 2172
DL 2172 was most reliable on Tuesdays (100% on time) and least reliable on Mondays (58%).
| Monday | |
| Tuesday | |
| Wednesday | |
| Thursday | |
| Friday | |
| Saturday | Too few flights |
| 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 SAN → 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 2172 delayed today?
Right now there are no reported delays at SAN, DTW. Checked 6:51 PM ET. For this flight's gate and exact status, check the Delta app.
Is DL 2172 usually on time?
DL 2172 arrived within 15 minutes of schedule 80.6% of the time in June-August 2026, with an average delay of 37 minutes when late.
How often is DL 2172 cancelled?
0% of DL 2172 flights were cancelled in June-August 2026.