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 3500
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
OO 3500 · DTW → GRR
departs 8:50 AM ET · arrives 9:54 AM ET
Forecast issued Wed 7:00 PM ET · 62h before departure
Watch this flight
Other days
Today 15%
Thu 10/1 19%
Fri 10/2 25%
Sat 10/3
Sun 10/4 19%
Mon 10/5 20%
Tue 10/6 14%
Odds over time
Arrive at GRR more than 15 minutes late?
16%
chance · ±3 pts
−6 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
16%
Leave 15+ late
16%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.5d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at GRR more than 15 minutes late?
Calm-weather odds: 14% · changed −6 pts in 24h
−6 pts
16%
Yes 16%
No 84%
Leave DTW more than 15 minutes late?
Calm-weather odds: 15% · changed −1 pt in 24h
−1 pt
16%
Yes 16%
No 84%
Arrive at GRR more than an hour late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
5%
Yes 5%
No 95%
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
84%
15–30 min late
4%
30 min–1 hour late
7%
1–2 hours late
2%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 27% of the time recently
↑
OO's recent on-time record
↑
Other factors
↓
Mostly benign weather forecast at DTW
↓
Mostly benign weather forecast at GRR
Weather at each end
DTW (origin)
Gusts 9 kt Ceiling none (clear) Visibility 10+ mi Precip none
GRR (destination)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
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.