Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 4139
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Today
OO 4139 · EUG → SEA
departs 12:32 PM PT · arrives 1:58 PM PT
Forecast issued Tue 10:00 PM ET · 6h after departure
Watch this flight
Other days
Today
Wed 9/30 24%
Thu 10/1 14%
Fri 10/2 18%
Sat 10/3 19%
Sun 10/4 20%
Mon 10/5 19%
Odds over time
Arrive at SEA more than 15 minutes late?
25%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
25%
Leave 15+ late
22%
Arrive 1h+ late
9%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 25% · changed +3 pts in 24h
+3 pts
25%
Yes 25%
No 75%
Leave EUG more than 15 minutes late?
Calm-weather odds: 22% · changed +0 pts in 24h
+0 pts
22%
Yes 22%
No 78%
Arrive at SEA more than an hour late?
Calm-weather odds: 9% · changed +1 pt in 24h
+1 pt
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SEA?
On time or early
74%
15–30 min late
11%
30 min–1 hour late
5%
1–2 hours late
7%
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
↑
Cloud base down to 500 ft forecast at SEA that day
↑
OO's recent on-time record
↑
EUG is prone to delays
↓
Mostly benign weather forecast at EUG
↓
Tuesdays in September are usually quieter than average
Weather at each end
EUG (origin)
Gusts 8 kt Ceiling 4,800 ft Visibility 10+ mi Precip none
SEA (destination)
Gusts 24 kt Ceiling 500 ft Visibility 3 mi Precip 0.04 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.