Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
DELTA · FLIGHT DL 644SCHEDULED · TYPICAL SCHEDULE
Today
DL 644 · IAH → ATL
departs 8:05 AM CT · arrives 11:10 AM ET
Forecast issued Wed 6:00 AM ET · 3h before departure
Odds over time
Arrive at ATL more than 15 minutes late?
15%chance · ±1 pts+3 pts · 24h
HOW SURE WE AREHigh. The odds now come mostly from live FAA and airport data.
How late will it get to ATL?
On time or early
84%
15–30 min late
4%
30 min–1 hour late
5%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.