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 3421
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
OO 3421 · IDA → PDX
departs 4:14 PM MT · arrives 4:50 PM PT
Forecast issued Wed 11:00 AM ET · 7h before departure
Watch this flight
Other days
Today
Thu 10/1 20%
Fri 10/2 24%
Sat 10/3 24%
Sun 10/4 26%
Mon 10/5 23%
Tue 10/6 19%
Odds over time
Arrive at PDX more than 15 minutes late?
18%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
21%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
Now
Departs
Lands
Arrive at PDX more than 15 minutes late?
Calm-weather odds: 18% · changed +3 pts in 24h
+3 pts
18%
Yes 18%
No 82%
Leave IDA more than 15 minutes late?
Calm-weather odds: 23% · changed +4 pts in 24h
+4 pts
21%
Yes 21%
No 79%
Arrive at PDX more than an hour late?
Calm-weather odds: 9% · changed −2 pts in 24h
−2 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to PDX?
On time or early
81%
15–30 min late
5%
30 min–1 hour late
8%
1–2 hours late
3%
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
↑
This flight has been late 30% of the time recently
↑
Other factors
↑
OO's recent on-time record
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at IDA
Weather at each end
IDA (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
PDX (destination)
Gusts 9 kt Ceiling 1,800 ft 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.