Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 4278
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
OO 4278 · DTW → CIU
departs 6:15 PM ET · arrives 7:32 PM ET
Forecast issued Thu 2:00 AM ET · 16h before departure
Watch this flight
Other days
Today
Fri 10/2 16%
Sat 10/3 9%
Sun 10/4 17%
Mon 10/5 17%
Tue 10/6 12%
Wed 10/7 14%
Odds over time
Arrive at CIU more than 15 minutes late?
37%
chance · ±4 pts
+11 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
37%
Leave 15+ late
35%
Arrive 1h+ late
16%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at CIU more than 15 minutes late?
Calm-weather odds: 20% · changed +11 pts in 24h
+11 pts
37%
Yes 37%
No 63%
Leave DTW more than 15 minutes late?
Calm-weather odds: 24% · changed +13 pts in 24h
+13 pts
35%
Yes 35%
No 65%
Arrive at CIU more than an hour late?
Calm-weather odds: 9% · changed +7 pts in 24h
+7 pts
16%
Yes 16%
No 84%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to CIU?
On time or early
63%
15–30 min late
13%
30 min–1 hour late
8%
1–2 hours late
10%
Over 2 hours late
5%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 500 ft forecast at DTW that day
↑
6pm departures from DTW are often late
↑
OO's recent on-time record
↓
DTW usually runs smoothly
↓
CIU usually runs smoothly
Weather at each end
DTW (origin)
Gusts 18 kt Ceiling 500 ft Visibility 3 mi Precip 0.19 in
CIU (destination)
Gusts 18 kt Ceiling 300 ft Visibility 2 mi Precip 0.02 in
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.