Flight DL492
Delta Air Lines flight DL492
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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
Detroit (DTW) to San Diego (SAN)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 64 minutes. It was cancelled 0.8% of the time.
- On-time arrivals
- 82.8%
- Less than 15 minutes late
- Cancelled
- 0.8%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 365
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 63%
- Air traffic control & airport 33%
- Late-arriving aircraft 3%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Diego (SAN) to Detroit (DTW)
Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 78 minutes. It was cancelled 1.0% of the time.
- On-time arrivals
- 81.0%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 78 min
- Flights arriving 15+ minutes late
- Flights tracked
- 288
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 16%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 78.3% | 60 |
| October 2025 | 95.2% | 62 |
| November 2025 | 71.2% | 59 |
| December 2025 | 70.8% | 50 |
| January 2026 | 76.8% | 58 |
| February 2026 | 83.3% | 56 |
| March 2026 | 91.7% | 38 |
| April 2026 | 83.3% | 30 |
| May 2026 | 89.3% | 56 |
| June 2026 | 85.0% | 60 |
| July 2026 | 72.6% | 62 |
| August 2026 | 88.7% | 62 |
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