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.
SOUTHWEST · FLIGHT WN 3354
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
WN 3354 · SEA → PHX
departs 5:20 PM PT · arrives 8:15 PM MT
Forecast issued Wed 10:00 AM ET · 34h before departure
Watch this flight
Other days
Thu 10/1
Fri 10/2 50%
Sat 10/3 32%
Mon 10/5 37%
Odds over time
Arrive at PHX more than 15 minutes late?
37%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
37%
Leave 15+ late
51%
Arrive 1h+ late
12%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at PHX more than 15 minutes late?
Calm-weather odds: 33% · changed +0 pts in 24h
+0 pts
37%
Yes 37%
No 63%
Leave SEA more than 15 minutes late?
Calm-weather odds: 48% · changed +1 pt in 24h
+1 pt
51%
Yes 51%
No 49%
Arrive at PHX more than an hour late?
Calm-weather odds: 11% · changed +0 pts in 24h
+0 pts
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to PHX?
On time or early
63%
15–30 min late
10%
30 min–1 hour late
15%
1–2 hours late
9%
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
↑
5pm departures from SEA are often late
↑
This flight has been late 49% of the time recently
↓
Mostly benign weather forecast at PHX
↓
Mostly benign weather forecast at SEA
Weather at each end
SEA (origin)
Gusts 7 kt Ceiling 7,000 ft Visibility 9 mi Precip none
PHX (destination)
Gusts 5 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.