Flight DL839
Delta Air Lines flight DL839
Looking for DL839 in the air…
Atlanta (ATL) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 20% of the time, and when it is late the delay averages 46 minutes. It was cancelled 3.7% of the time.
- On-time arrivals
- 79.8%
- Less than 15 minutes late
- Cancelled
- 3.7%
- Of scheduled flights
- Average delay when late
- 46 min
- Flights arriving 15+ minutes late
- Flights tracked
- 347
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 58%
- Airline (crew, maintenance, cleaning) 28%
- Extreme weather 14%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 64 minutes. It was cancelled 3.5% of the time.
- On-time arrivals
- 83.7%
- Less than 15 minutes late
- Cancelled
- 3.5%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 345
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Airline (crew, maintenance, cleaning) 26%
- Air traffic control & airport 11%
- Extreme weather 5%
- 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 | 67.8% | 60 |
| October 2025 | 71.0% | 62 |
| November 2025 | 73.2% | 60 |
| December 2025 | 90.2% | 62 |
| January 2026 | 87.5% | 62 |
| February 2026 | 93.8% | 48 |
| March 2026 | 86.5% | 54 |
| April 2026 | 82.1% | 56 |
| May 2026 | 66.7% | 62 |
| June 2026 | 83.3% | 53 |
| July 2026 | 89.1% | 55 |
| August 2026 | 94.4% | 58 |
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