UA1660 SFO → DTW
United Airlines · San Francisco, CA to Detroit, MI · 25 flights observed, 2025-07-02 to 2025-07-31 · 2,079 mi
UA1660 covers more than one route in the data window — the stats below are for SFO → DTW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
68%
Median delay
-2 min
90th percentile
+33 min
Cancellation rate
0%
How often is UA1660 on time?
Across 25 flights on SFO → DTW from 2025-07-02 to 2025-07-31, UA1660 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +33 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 17 | 68% |
| 16-30 min | 5 | 20% |
| 31-60 min | 2 | 8% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 25 | 68% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | No data | — |
| Wed | 5 | 60% |
| Thu | 5 | 60% |
| Fri | 3 | 100% |
| Sat | 4 | 100% |
| Sun | 4 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…