Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3353
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
WN 3353 · PHX → STL
departs 4:40 PM MT · arrives 9:35 PM CT
Forecast issued Sun 9:00 AM ET · 35h before departure
Watch this flight
Other days
Mon 10/5
Fri 10/9 37%
Odds over time
Arrive at STL more than 15 minutes late?
28%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
28%
Leave 15+ late
39%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 26% · changed +0 pts in 24h
+0 pts
28%
Yes 28%
No 72%
Leave PHX more than 15 minutes late?
Calm-weather odds: 37% · changed +0 pts in 24h
+0 pts
39%
Yes 39%
No 61%
Arrive at STL more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to STL?
On time or early
72%
15–30 min late
9%
30 min–1 hour late
11%
1–2 hours late
6%
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
↑
4pm departures from PHX are often late
↑
Later flights pick up delays from earlier in the day
↑
WN's recent on-time record
↓
Mondays in October are usually quieter than average
↓
Mostly benign weather forecast at STL
Weather at each end
PHX (origin)
Gusts 22 kt Ceiling none (clear) Visibility 10+ mi Precip none
STL (destination)
Gusts 9 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.