Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

DELTA · FLIGHT DL 401 SCHEDULED · TYPICAL SCHEDULE

DL 401 · DFW → ATL

departs 5:20 AM CT · arrives 8:34 AM ET
Forecast issued Wed 9:00 AM ET · 45h before departure

Odds over time

Arrive at ATL more than 15 minutes late?
9% chance · ±3 pts +0 pts · 24h
HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.
WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 3.3d Now 1d 12h 6h Departs Lands

How late will it get to ATL?

  1. On time or early
    89%
  2. 15–30 min late
    0%
  3. 30 min–1 hour late
    4%
  4. 1–2 hours late
    2%
  5. Over 2 hours late
    3%
  6. Cancelled
    2%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.