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 5651
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
OO 5651 · ORD → ACK
departs 11:45 AM CT · arrives 3:41 PM ET
Forecast issued Fri 1:00 AM ET · 60h before departure
Watch this flight
Other days
Today 24%
Sat 10/3 16%
Sun 10/4
Thu 10/8 14%
Odds over time
Arrive at ACK more than 15 minutes late?
16%
chance · ±0 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
16%
Leave 15+ late
21%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.6d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at ACK more than 15 minutes late?
Calm-weather odds: 12% · changed – in 24h
–
16%
Yes 16%
No 84%
Leave ORD more than 15 minutes late?
Calm-weather odds: 16% · changed – in 24h
–
21%
Yes 21%
No 79%
Arrive at ACK more than an hour late?
Calm-weather odds: 7% · changed – in 24h
–
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to ACK?
On time or early
84%
15–30 min late
2%
30 min–1 hour late
5%
1–2 hours late
6%
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
↑
11am departures from ORD are often late
↑
OO's recent on-time record
↑
Mostly benign weather forecast at ACK
↓
Mostly benign weather forecast at ORD
↓
ACK usually runs smoothly
Weather at each end
ORD (origin)
Gusts 13 kt Ceiling none (clear) Visibility 10+ mi Precip none
ACK (destination)
Gusts 17 kt Ceiling 200 ft Visibility 1 mi Precip 0.07 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.