Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SKYWEST · FLIGHT OO 5581
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
OO 5581 · ORD → MKE
departs 5:59 AM CT · arrives 7:00 AM CT
Forecast issued Fri 7:00 AM ET · 48h before departure
Watch this flight
Other days
Today 15%
Sat 10/3 10%
Sun 10/4
Mon 10/5 13%
Tue 10/6 12%
Wed 10/7 15%
Thu 10/8 11%
Odds over time
Arrive at MKE more than 15 minutes late?
11%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
11%
Leave 15+ late
12%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
5.4d
Now
1d
12h
6h
Departs
Lands
Arrive at MKE more than 15 minutes late?
Calm-weather odds: 11% · changed +1 pt in 24h
+1 pt
11%
Yes 11%
No 89%
Leave ORD more than 15 minutes late?
Calm-weather odds: 13% · changed +0 pts in 24h
+0 pts
12%
Yes 12%
No 88%
Arrive at MKE more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to MKE?
On time or early
88%
15–30 min late
5%
30 min–1 hour late
2%
1–2 hours late
2%
Over 2 hours late
2%
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 24% of the time recently
↑
OO's recent on-time record
↑
ORD is busy at that time
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at ORD
Weather at each end
ORD (origin)
Gusts 13 kt Ceiling none (clear) Visibility 10+ mi Precip none
MKE (destination)
Gusts 15 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.