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 3878
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
OO 3878 · MFR → SEA
departs 12:20 PM PT · arrives 2:00 PM PT
Forecast issued Fri 5:00 PM ET · 22h before departure
Watch this flight
Other days
Today 13%
Sat 10/3
Sun 10/4 16%
Mon 10/5 12%
Odds over time
Arrive at SEA more than 15 minutes late?
12%
chance · ±0 pts
−5 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
12%
Leave 15+ late
15%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.7d
2d
Now
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 10% · changed −5 pts in 24h
−5 pts
12%
Yes 12%
No 88%
Leave MFR more than 15 minutes late?
Calm-weather odds: 13% · changed −3 pts in 24h
−3 pts
15%
Yes 15%
No 85%
Arrive at SEA more than an hour late?
Calm-weather odds: 4% · changed −2 pts in 24h
−2 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 SEA?
On time or early
88%
15–30 min late
3%
30 min–1 hour late
3%
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
↑
SEA is prone to delays
↓
Mostly benign weather forecast at SEA
↓
Mostly benign weather forecast at MFR
Weather at each end
MFR (origin)
Gusts 3 kt Ceiling none (clear) Visibility 10+ mi Precip none
SEA (destination)
Gusts 11 kt Ceiling none (clear) Visibility 8 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.