Route
DTW → SAN
Detroit Metropolitan Wayne County Airport San Diego International Airport
Alerts at DTW and SAN
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Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
How punctual is this route?
- On-time arrivals
- 73.5%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 66 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,269
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 39%
- Air traffic control & airport 30%
- Late-arriving aircraft 26%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 79.8% | 119 |
| October 2025 | 84.7% | 118 |
| November 2025 | 71.7% | 107 |
| December 2025 | 63.3% | 112 |
| January 2026 | 57.1% | 94 |
| February 2026 | 78.3% | 84 |
| March 2026 | 84.4% | 93 |
| April 2026 | 79.2% | 106 |
| May 2026 | 77.5% | 112 |
| June 2026 | 76.0% | 105 |
| July 2026 | 67.6% | 109 |
| August 2026 | 61.8% | 110 |
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 | 1,250 | 73.3% | 0.8% | 66 min |
| NK | 19 | 88.2% | 5.3% | 44 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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