Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 640SCHEDULED · TYPICAL SCHEDULE
Tomorrow
DL 640 · SFO → ATL
departs 7:50 AM PT · arrives 3:32 PM ET
Forecast issued Fri 11:00 AM ET · 24h before departure
Odds over time
Arrive at ATL more than 15 minutes late?
10%chance · ±1 pts+2 pts · 24h
HOW SURE WE AREGood. The odds now lean mostly on firmed-up weather forecasts.
How late will it get to ATL?
On time or early
90%
15–30 min late
2%
30 min–1 hour late
5%
1–2 hours late
1%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.