Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 3639
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
OO 3639 · BUF → DTW
departs 8:55 AM ET · arrives 10:10 AM ET
Forecast issued Tue 11:00 PM ET · 34h before departure
Watch this flight
Other days
Today 11%
Thu 10/1
Fri 10/2 10%
Sat 10/3 12%
Sun 10/4 11%
Mon 10/5 11%
Tue 10/6 9%
Odds over time
Arrive at DTW more than 15 minutes late?
13%
chance · ±2 pts
+3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
13%
Leave 15+ late
11%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at DTW more than 15 minutes late?
Calm-weather odds: 8% · changed +3 pts in 24h
+3 pts
13%
Yes 13%
No 87%
Leave BUF more than 15 minutes late?
Calm-weather odds: 8% · changed +1 pt in 24h
+1 pt
11%
Yes 11%
No 89%
Arrive at DTW more than an hour late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to DTW?
On time or early
86%
15–30 min late
6%
30 min–1 hour late
2%
1–2 hours late
2%
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
↑
Mostly benign weather forecast at DTW
↑
BUF is prone to delays
↑
OO's recent on-time record
↓
DTW usually runs smoothly
↓
Arrivals into DTW at that hour are usually not late
Weather at each end
BUF (origin)
Gusts 25 kt Ceiling 4,500 ft Visibility 10+ mi Precip 0.06 in
DTW (destination)
Gusts 15 kt Ceiling 4,333 ft Visibility 7 mi Precip 0.16 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.