Flight DL381
Delta Air Lines flight DL381
Looking for DL381 in the air…
Alerts at this flight's airports
Austin (AUS) to San Francisco (SFO)
Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 70 minutes. It was cancelled 1.4% of the time.
- On-time arrivals
- 74.7%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 70 min
- Flights arriving 15+ minutes late
- Flights tracked
- 365
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 41%
- Air traffic control & airport 31%
- Late-arriving aircraft 28%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Francisco (SFO) to Austin (AUS)
Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 84 minutes. It was cancelled 1.6% of the time.
- On-time arrivals
- 71.3%
- Less than 15 minutes late
- Cancelled
- 1.6%
- Of scheduled flights
- Average delay when late
- 84 min
- Flights arriving 15+ minutes late
- Flights tracked
- 365
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 50%
- Airline (crew, maintenance, cleaning) 34%
- Air traffic control & airport 15%
- Extreme weather 2%
- 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 | 63.3% | 60 |
| October 2025 | 63.8% | 62 |
| November 2025 | 66.7% | 60 |
| December 2025 | 66.1% | 62 |
| January 2026 | 60.3% | 62 |
| February 2026 | 64.3% | 56 |
| March 2026 | 86.7% | 62 |
| April 2026 | 56.7% | 60 |
| May 2026 | 81.7% | 62 |
| June 2026 | 75.0% | 60 |
| July 2026 | 90.3% | 62 |
| August 2026 | 98.4% | 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