Schedule: a typical summer Saturday (the flights of Jul 25, 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
Saturday, October 3 Yesterday
OO 3639 · DTW → BUF
departs 7:00 AM ET · arrives 8:14 AM ET
Forecast issued Sat 10:00 PM ET · 15h after departure
Watch this flight
Other days
Sat 10/3
Today 9%
Mon 10/5 8%
Fri 10/9 9%
Odds over time
Arrive at BUF more than 15 minutes late?
10%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
10%
Leave 15+ late
16%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.4d
2d
1d
12h
6h
Departs
Lands
Arrive at BUF more than 15 minutes late?
Calm-weather odds: 10% · changed +0 pts in 24h
+0 pts
10%
Yes 10%
No 90%
Leave DTW more than 15 minutes late?
Calm-weather odds: 16% · changed +4 pts in 24h
+4 pts
16%
Yes 16%
No 84%
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
89%
15–30 min late
0%
30 min–1 hour late
4%
1–2 hours late
3%
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
↑
DTW is busy at that time
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at DTW
Weather at each end
DTW (origin)
Gusts 10 kt Ceiling 4,500 ft Visibility 9 mi Precip none
BUF (destination)
Gusts 16 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.