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.

SKYWEST · FLIGHT OO 4278 SCHEDULED · TYPICAL SCHEDULE

OO 4278 · DTW → CIU

departs 6:15 PM ET · arrives 7:32 PM ET
Forecast issued Thu 5:00 AM ET · 61h before departure

Odds over time

Arrive at CIU more than 15 minutes late?
9% chance · ±1 pts – · 24h
HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 5% 10% 15% 20% 4.8d Now 2d 1d 12h 6h Departs Lands

How late will it get to CIU?

  1. On time or early
    90%
  2. 15–30 min late
    1%
  3. 30 min–1 hour late
    3%
  4. 1–2 hours late
    3%
  5. Over 2 hours late
    2%
  6. Cancelled
    <1%

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