Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 839SCHEDULED · TYPICAL SCHEDULE
DL 839 · ATL → DFW
departs 8:05 AM ET · arrives 9:20 AM CT
Forecast issued Thu 1:00 AM ET · 55h before departure
Odds over time
Arrive at DFW more than 15 minutes late?
30%chance · ±3 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to DFW?
On time or early
69%
15–30 min late
17%
30 min–1 hour late
7%
1–2 hours late
2%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.