Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SKYWEST · FLIGHT OO 3421
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
OO 3421 · IDA → PDX
departs 4:14 PM MT · arrives 4:50 PM PT
Forecast issued Wed 9:00 PM ET · 21h before departure
Watch this flight
Other days
Today 20%
Thu 10/1
Fri 10/2 23%
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?
24%
chance · ±1 pts
+4 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
24%
Leave 15+ late
25%
Arrive 1h+ late
9%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
Now
12h
6h
Departs
Lands
Arrive at PDX more than 15 minutes late?
Calm-weather odds: 24% · changed +4 pts in 24h
+4 pts
24%
Yes 24%
No 76%
Leave IDA more than 15 minutes late?
Calm-weather odds: 24% · changed +4 pts in 24h
+4 pts
25%
Yes 25%
No 75%
Arrive at PDX more than an hour late?
Calm-weather odds: 9% · changed +0 pts in 24h
+0 pts
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 PDX?
On time or early
76%
15–30 min late
7%
30 min–1 hour late
7%
1–2 hours late
6%
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 36% of the time recently
↑
Other factors
↑
4pm departures from IDA are often late
↓
Mostly benign weather forecast at PDX
↓
Mostly benign weather forecast at IDA
Weather at each end
IDA (origin)
Gusts 15 kt Ceiling none (clear) Visibility 10+ mi Precip none
PDX (destination)
Gusts 11 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.