Flight DL391
Delta Air Lines flight DL391
Looking for DL391 in the air…
Atlanta (ATL) to Reno (RNO)
Historically, this flight arrives 15+ minutes late 30% of the time, and when it is late the delay averages 61 minutes. It was cancelled 1.0% of the time.
- On-time arrivals
- 70.4%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 310
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 54%
- Late-arriving aircraft 22%
- Air traffic control & airport 19%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Reno (RNO) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 131 minutes. It was cancelled 1.3% of the time.
- On-time arrivals
- 75.8%
- Less than 15 minutes late
- Cancelled
- 1.3%
- Of scheduled flights
- Average delay when late
- 131 min
- Flights arriving 15+ minutes late
- Flights tracked
- 310
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 65%
- Late-arriving aircraft 32%
- Air traffic control & airport 3%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Atlanta (ATL) to Greensboro (GSO)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.3% | 42 |
| October 2025 | 56.8% | 44 |
| November 2025 | 73.8% | 42 |
| December 2025 | 83.0% | 51 |
| January 2026 | 81.8% | 46 |
| February 2026 | 62.5% | 40 |
| March 2026 | 71.9% | 58 |
| April 2026 | 63.3% | 60 |
| May 2026 | 77.4% | 62 |
| June 2026 | 81.4% | 60 |
| July 2026 | 71.7% | 62 |
| August 2026 | 70.4% | 54 |
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