Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SKYWEST · FLIGHT OO 3639
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
OO 3639 · DTW → BUF
departs 7:00 AM ET · arrives 8:14 AM ET
Forecast issued Thu 10:00 PM ET · 15h after departure
Watch this flight
Other days
Thu 10/1
Today 9%
Mon 10/5 8%
Fri 10/9 9%
Odds over time
Arrive at BUF more than 15 minutes late?
14%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
14%
Leave 15+ late
10%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at BUF more than 15 minutes late?
Calm-weather odds: 15% · changed +1 pt in 24h
+1 pt
14%
Yes 14%
No 86%
Leave DTW more than 15 minutes late?
Calm-weather odds: 10% · changed −11 pts in 24h
−11 pts
10%
Yes 10%
No 90%
Arrive at BUF more than an hour late?
Calm-weather odds: 6% · changed −3 pts in 24h
−3 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 BUF?
On time or early
85%
15–30 min late
6%
30 min–1 hour late
2%
1–2 hours late
4%
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
↑
OO's recent on-time record
↑
Gusts to 25 kt, cloud base down to 1,200 ft, 0.5 in of rain forecast at BUF that day
↓
Early flights usually leave on time
↓
Arrivals into BUF at that hour are usually not late
Weather at each end
DTW (origin)
Gusts 13 kt Ceiling 5,240 ft Visibility 7 mi Precip 0.15 in
BUF (destination)
Gusts 26 kt Ceiling 1,200 ft Visibility 4 mi Precip 0.28 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.