tailodds FORECAST

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.

FRONTIER · FLIGHT F9 4639 SCHEDULED · TYPICAL SCHEDULE

F9 4639 · CLE → DEN

departs 12:03 PM ET · arrives 1:29 PM MT
Forecast issued Wed 2:00 PM ET · 46h before departure
Arrive at DEN more than 15 minutes late?
19% chance · ±1 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% 10% 20% 30% 40% 3.6d Now 1d 12h 6h Departs Lands

How late will it get to DEN?

  1. On time or early
    80%
  2. 15–30 min late
    5%
  3. 30 min–1 hour late
    7%
  4. 1–2 hours late
    5%
  5. Over 2 hours late
    2%
  6. Cancelled
    1%

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