Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SKYWEST · FLIGHT OO 5303
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Yesterday
OO 5303 · ORD → GRR
departs 9:40 PM CT · arrives 11:56 PM ET
Forecast issued Thu 10:00 PM ET · 1h before departure
Watch this flight
Other days
Thu 10/1
Today 26%
Sat 10/3 18%
Sun 10/4 32%
Mon 10/5 22%
Tue 10/6 25%
Wed 10/7 20%
Odds over time
Arrive at GRR more than 15 minutes late?
68%
chance · ±0 pts
+18 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
68%
Leave 15+ late
52%
Arrive 1h+ late
33%
Cancelled
8%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
2.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at GRR more than 15 minutes late?
Calm-weather odds: 64% · changed +18 pts in 24h
+18 pts
68%
Yes 68%
No 32%
Leave ORD more than 15 minutes late?
Calm-weather odds: 54% · changed +0 pts in 24h
+0 pts
52%
Yes 52%
No 48%
Arrive at GRR more than an hour late?
Calm-weather odds: 28% · changed +12 pts in 24h
+12 pts
33%
Yes 33%
No 67%
Cancelled?
Calm-weather odds: 7% · changed −1 pt in 24h
−1 pt
8%
Yes 8%
No 92%
How late will it get to GRR?
On time or early
29%
15–30 min late
17%
30 min–1 hour late
15%
1–2 hours late
25%
Over 2 hours late
6%
Cancelled
8%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 600 ft, visibility down to 2 mi, 1.8 in of rain forecast at ORD that day
↑
9pm departures from ORD are often late
↑
Cloud base down to 600 ft, visibility down to 1.5 mi, 1.6 in of rain forecast at GRR that day
↓
GRR usually runs smoothly
↓
Other factors
Weather at each end
ORD (origin)
Gusts 14 kt Ceiling 600 ft Visibility 2 mi Precip 1.48 in
GRR (destination)
Gusts 9 kt Ceiling 500 ft Visibility 1.5 mi Precip 1.30 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.