Flight DL731
Delta Air Lines flight DL731
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Alerts at this flight's airports
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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
Atlanta (ATL) to San Diego (SAN)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 53 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 74.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 130
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 40%
- Air traffic control & airport 27%
- Extreme weather 20%
- Late-arriving aircraft 13%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Atlanta (ATL) to Wilmington (ILM)
Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 62 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 84.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 116
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 56%
- Late-arriving aircraft 28%
- Air traffic control & airport 16%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Wilmington (ILM) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 88 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 76.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 88 min
- Flights arriving 15+ minutes late
- Flights tracked
- 116
- Scheduled flights in the period
What caused the delays
- Extreme weather 43%
- Airline (crew, maintenance, cleaning) 41%
- Late-arriving aircraft 9%
- Air traffic control & airport 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Detroit (DTW) to Norfolk (ORF)
Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 49 minutes. It was cancelled 1.2% of the time.
- On-time arrivals
- 75.0%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 49 min
- Flights arriving 15+ minutes late
- Flights tracked
- 85
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 55%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 17%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Diego (SAN) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 104 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 71.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 104 min
- Flights arriving 15+ minutes late
- Flights tracked
- 52
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 72%
- Air traffic control & airport 18%
- Extreme weather 8%
- Late-arriving aircraft 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 73.1% | 26 |
| October 2025 | 73.9% | 23 |
| November 2025 | 75.0% | 20 |
| December 2025 | 71.1% | 40 |
| January 2026 | 80.0% | 35 |
| February 2026 | 74.1% | 28 |
| March 2026 | 69.2% | 52 |
| April 2026 | 78.9% | 38 |
| May 2026 | 71.7% | 53 |
| June 2026 | 88.3% | 60 |
| July 2026 | 75.8% | 62 |
| August 2026 | 83.9% | 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