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 4081
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
OO 4081 · DTW → GRR
departs 8:00 PM ET · arrives 9:00 PM ET
Forecast issued Thu 1:00 PM ET · 7h before departure
Watch this flight
Other days
Today
Fri 10/2 25%
Sat 10/3 18%
Sun 10/4 22%
Mon 10/5 22%
Tue 10/6 20%
Wed 10/7 18%
Odds over time
Arrive at GRR more than 15 minutes late?
58%
chance · ±0 pts
+20 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
58%
Leave 15+ late
65%
Arrive 1h+ late
35%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
2d
1d
12h
Now
Departs
Lands
Arrive at GRR more than 15 minutes late?
Calm-weather odds: 28% · changed +20 pts in 24h
+20 pts
58%
Yes 58%
No 42%
Leave DTW more than 15 minutes late?
Calm-weather odds: 34% · changed +28 pts in 24h
+28 pts
65%
Yes 65%
No 35%
Arrive at GRR more than an hour late?
Calm-weather odds: 12% · changed +19 pts in 24h
+19 pts
35%
Yes 35%
No 65%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to GRR?
On time or early
42%
15–30 min late
24%
30 min–1 hour late
0%
1–2 hours late
27%
Over 2 hours late
6%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 600 ft forecast at DTW that day
↑
Cloud base down to 700 ft, visibility down to 2 mi, 0.8 in of rain forecast at GRR that day
↑
8pm departures from DTW are often late
↓
DTW usually runs smoothly
↓
GRR usually runs smoothly
Weather at each end
DTW (origin)
Gusts 19 kt Ceiling 4,500 ft Visibility 7 mi Precip 0.21 in
GRR (destination)
Gusts 16 kt Ceiling 600 ft Visibility 2 mi Precip 0.82 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.