Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SKYWEST · FLIGHT OO 5539
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Yesterday
OO 5539 · ORD → MLI
departs 10:00 PM CT · arrives 11:16 PM CT
Forecast issued Fri 10:00 PM ET · 1h before departure
Watch this flight
Other days
Fri 10/2
Today 10%
Sun 10/4 26%
Mon 10/5 14%
Fri 10/9 20%
Odds over time
Arrive at MLI more than 15 minutes late?
25%
chance · ±1 pts
+3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
25%
Leave 15+ late
26%
Arrive 1h+ late
10%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.0d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at MLI more than 15 minutes late?
Calm-weather odds: 23% · changed +3 pts in 24h
+3 pts
25%
Yes 25%
No 75%
Leave ORD more than 15 minutes late?
Calm-weather odds: 27% · changed +1 pt in 24h
+1 pt
26%
Yes 26%
No 74%
Arrive at MLI more than an hour late?
Calm-weather odds: 11% · changed +0 pts in 24h
+0 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: 2% · changed +1 pt in 24h
+1 pt
2%
Yes 2%
No 98%
How late will it get to MLI?
On time or early
73%
15–30 min late
8%
30 min–1 hour late
7%
1–2 hours late
5%
Over 2 hours late
5%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
10pm departures from ORD are often late
↑
This flight has been late 25% of the time recently
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at ORD
↓
Other factors
Weather at each end
ORD (origin)
Gusts 16 kt Ceiling 2,800 ft Visibility 9 mi Precip 0.10 in
MLI (destination)
Gusts 16 kt Ceiling 2,500 ft 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.