Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 5820
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
OO 5820 · BUF → ORD
departs 7:00 AM ET · arrives 8:05 AM CT
Forecast issued Thu 3:00 PM ET · 40h before departure
Watch this flight
Other days
Today 22%
Fri 10/2 14%
Sat 10/3
Sun 10/4 12%
Mon 10/5 13%
Tue 10/6 10%
Wed 10/7 15%
Odds over time
Arrive at ORD more than 15 minutes late?
9%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
9%
Leave 15+ late
10%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.4d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at ORD more than 15 minutes late?
Calm-weather odds: 10% · changed +0 pts in 24h
+0 pts
9%
Yes 9%
No 91%
Leave BUF more than 15 minutes late?
Calm-weather odds: 11% · changed +1 pt in 24h
+1 pt
10%
Yes 10%
No 90%
Arrive at ORD more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to ORD?
On time or early
90%
15–30 min late
3%
30 min–1 hour late
<1%
1–2 hours late
3%
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
↑
This flight has been late 19% of the time recently
↑
ORD is busy at that time
↑
OO's recent on-time record
↓
Mostly benign weather forecast at ORD
↓
Other factors
Weather at each end
BUF (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
ORD (destination)
Gusts 8 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.