Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 3877
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
OO 3877 · DTW → LEX
departs 3:59 PM ET · arrives 5:21 PM ET
Forecast issued Wed 9:00 PM ET · 5h after departure
Watch this flight
Other days
Today
Thu 10/1 26%
Fri 10/2 25%
Sun 10/4 16%
Mon 10/5 16%
Tue 10/6 13%
Odds over time
Arrive at LEX more than 15 minutes late?
22%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
22%
Leave 15+ late
25%
Arrive 1h+ late
7%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at LEX more than 15 minutes late?
Calm-weather odds: 22% · changed −1 pt in 24h
−1 pt
22%
Yes 22%
No 78%
Leave DTW more than 15 minutes late?
Calm-weather odds: 25% · changed +0 pts in 24h
+0 pts
25%
Yes 25%
No 75%
Arrive at LEX more than an hour late?
Calm-weather odds: 7% · changed +1 pt in 24h
+1 pt
7%
Yes 7%
No 93%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LEX?
On time or early
77%
15–30 min late
10%
30 min–1 hour late
5%
1–2 hours late
4%
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
↑
OO's recent on-time record
↑
3pm departures from DTW are often late
↑
Mostly benign weather forecast at DTW
↓
Wednesdays in September are usually quieter than average
↓
DTW usually runs smoothly
Weather at each end
DTW (origin)
Gusts 8 kt Ceiling 2,800 ft Visibility 6 mi Precip 0.04 in
LEX (destination)
Gusts 20 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.