Route
SFO → DTW
San Francisco International Airport Detroit Metropolitan Wayne County Airport
Alerts at SFO and DTW
How punctual is this route?
- On-time arrivals
- 77.7%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 58 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,791
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 50%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 17%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 84.1% | 145 |
| October 2025 | 83.1% | 154 |
| November 2025 | 86.2% | 146 |
| December 2025 | 72.8% | 141 |
| January 2026 | 75.4% | 126 |
| February 2026 | 86.5% | 112 |
| March 2026 | 87.3% | 145 |
| April 2026 | 89.0% | 146 |
| May 2026 | 69.2% | 156 |
| June 2026 | 68.0% | 177 |
| July 2026 | 69.0% | 187 |
| August 2026 | 68.6% | 156 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Delta Air Lines | 1,385 | 75.4% | 0.8% | 58 min |
| United Airlines | 406 | 85.5% | 0.0% | 56 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL772
6% late · 365 flights
-
DL335
28% late · 364 flights
-
DL361
24% late · 290 flights
-
DL717
39% late · 226 flights
-
UA1642
16% late · 101 flights
-
UA2380
12% late · 90 flights
-
DL561
23% late · 75 flights
-
UA234
2% late · 41 flights
-
UA1781
16% late · 32 flights
-
DL1927
62% late · 29 flights
-
DL976
58% late · 27 flights
-
UA1791
7% late · 27 flights
-
UA1904
21% late · 24 flights
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