Flight DL1552
Delta Air Lines flight DL1552
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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
Raleigh/Durham (RDU) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 139 minutes. It was cancelled 2.8% of the time.
- On-time arrivals
- 95.1%
- Less than 15 minutes late
- Cancelled
- 2.8%
- Of scheduled flights
- Average delay when late
- 139 min
- Flights arriving 15+ minutes late
- Flights tracked
- 211
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 94%
- Air traffic control & airport 6%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Salt Lake City (SLC)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 135 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 88.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 135 min
- Flights arriving 15+ minutes late
- Flights tracked
- 110
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 62%
- Late-arriving aircraft 32%
- Air traffic control & airport 5%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Diego (SAN) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 87.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 47 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Air traffic control & airport 23%
- Extreme weather 13%
- Airline (crew, maintenance, cleaning) 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to San Diego (SAN)
Historically, this flight arrives 15+ minutes late 21% of the time, and when it is late the delay averages 38 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 79.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 38 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 63%
- Air traffic control & airport 21%
- Late-arriving aircraft 16%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Indianapolis (IND) to Minneapolis (MSP)
Only 10 flights on record, which is too few for reliable odds.
- On-time arrivals
- 90.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 82 min
- Flights arriving 15+ minutes late
- Flights tracked
- 10
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 46%
- Late-arriving aircraft 45%
- Air traffic control & airport 9%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Minneapolis (MSP) to Indianapolis (IND)
Only 10 flights on record, which is too few for reliable odds.
- On-time arrivals
- 90.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 51 min
- Flights arriving 15+ minutes late
- Flights tracked
- 10
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 100%
- Airline (crew, maintenance, cleaning) 0%
- Late-arriving aircraft 0%
- Extreme weather 0%
- 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 | 76.7% | 30 |
| October 2025 | 93.5% | 31 |
| November 2025 | 93.3% | 30 |
| December 2025 | 90.3% | 31 |
| January 2026 | 94.3% | 37 |
| February 2026 | 91.1% | 45 |
| March 2026 | 79.4% | 35 |
| April 2026 | 100.0% | 28 |
| May 2026 | 93.5% | 31 |
| June 2026 | 93.1% | 30 |
| July 2026 | 100.0% | 30 |
| August 2026 | 93.3% | 31 |
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