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 971SCHEDULED · TYPICAL SCHEDULE
DL 971 · ATL → COS
departs 7:59 PM ET · arrives 9:07 PM MT
Forecast issued Thu 3:00 AM ET · 65h before departure
Odds over time
Arrive at COS more than 15 minutes late?
26%chance · ±9 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to COS?
On time or early
73%
15–30 min late
8%
30 min–1 hour late
8%
1–2 hours late
7%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.