Flight DL1571
Delta Air Lines flight DL1571
Looking for DL1571 in the air…
Atlanta (ATL) to St Louis (STL)
Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 59 minutes. It was cancelled 2.9% of the time.
- On-time arrivals
- 91.8%
- Less than 15 minutes late
- Cancelled
- 2.9%
- Of scheduled flights
- Average delay when late
- 59 min
- Flights arriving 15+ minutes late
- Flights tracked
- 315
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 63%
- Air traffic control & airport 27%
- Late-arriving aircraft 10%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
St Louis (STL) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 6% of the time, and when it is late the delay averages 84 minutes. It was cancelled 2.9% of the time.
- On-time arrivals
- 93.7%
- Less than 15 minutes late
- Cancelled
- 2.9%
- Of scheduled flights
- Average delay when late
- 84 min
- Flights arriving 15+ minutes late
- Flights tracked
- 311
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 35%
- Air traffic control & airport 12%
- Extreme weather 9%
- 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 | 97.4% | 39 |
| October 2025 | 85.1% | 47 |
| November 2025 | 96.4% | 34 |
| December 2025 | 86.2% | 58 |
| January 2026 | 93.1% | 62 |
| February 2026 | 96.3% | 56 |
| March 2026 | 90.0% | 62 |
| April 2026 | 87.5% | 60 |
| May 2026 | 93.5% | 62 |
| June 2026 | 95.8% | 48 |
| July 2026 | 100.0% | 48 |
| August 2026 | 95.9% | 50 |
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