Schedule: the flights that flew on Sunday, Oct 25, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 391
SCHEDULED · TYPICAL SCHEDULE
Sunday, November 1
WN 391 · PDX → LAS
departs 4:21 PM PT · arrives 6:34 PM PT
Forecast issued Sat 1:00 AM ET · 43h before departure
Watch this flight
Odds over time
Arrive at LAS more than 15 minutes late?
46%
chance · ±6 pts
−6 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
46%
Leave 15+ late
54%
Arrive 1h+ late
21%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
6.8d
Now
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 33% · changed −6 pts in 24h
−6 pts
46%
Yes 46%
No 54%
Leave PDX more than 15 minutes late?
Calm-weather odds: 43% · changed −8 pts in 24h
−8 pts
54%
Yes 54%
No 46%
Arrive at LAS more than an hour late?
Calm-weather odds: 9% · changed −5 pts in 24h
−5 pts
21%
Yes 21%
No 79%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LAS?
On time or early
54%
15–30 min late
21%
30 min–1 hour late
3%
1–2 hours late
18%
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
↑
WN's recent on-time record
↑
Arrivals into LAS at that hour are often late
↑
LAS is prone to delays
↓
Visibility down to 0.5 mi forecast at PDX that day
↓
PDX usually runs smoothly
Weather at each end
PDX (origin)
Gusts 2 kt Ceiling 2,700 ft Visibility 0.3 mi Precip none
LAS (destination)
Gusts 26 kt Ceiling 1,700 ft Visibility 3 mi Precip 0.18 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.