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 4798
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
OO 4798 · ORD → MDT
departs 10:29 AM CT · arrives 1:34 PM ET
Forecast issued Thu 7:00 AM ET · 4h before departure
Watch this flight
Other days
Today
Fri 10/2 18%
Sat 10/3 15%
Sun 10/4 19%
Mon 10/5 19%
Tue 10/6 15%
Wed 10/7 17%
Odds over time
Arrive at MDT more than 15 minutes late?
50%
chance · ±0 pts
+18 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
50%
Leave 15+ late
53%
Arrive 1h+ late
43%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at MDT more than 15 minutes late?
Calm-weather odds: 22% · changed +18 pts in 24h
+18 pts
50%
Yes 50%
No 50%
Leave ORD more than 15 minutes late?
Calm-weather odds: 28% · changed +18 pts in 24h
+18 pts
53%
Yes 53%
No 47%
Arrive at MDT more than an hour late?
Calm-weather odds: 7% · changed +29 pts in 24h
+29 pts
43%
Yes 43%
No 57%
Cancelled?
Calm-weather odds: 1% · changed −3 pts in 24h
−3 pts
2%
Yes 2%
No 98%
How late will it get to MDT?
On time or early
49%
15–30 min late
24%
30 min–1 hour late
0%
1–2 hours late
18%
Over 2 hours late
7%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 500 ft, visibility down to 2 mi, 0.9 in of rain forecast at ORD that day
↑
10am departures from ORD are often late
↑
OO's recent on-time record
↓
Mostly benign weather forecast at MDT
↓
Thursdays in October are usually quieter than average
Weather at each end
ORD (origin)
Gusts 16 kt Ceiling 500 ft Visibility 3 mi Precip 0.88 in
MDT (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.