Schedule: the flights that flew on Wednesday, Nov 4, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 840
SCHEDULED · TYPICAL SCHEDULE
Wednesday, November 11 Tomorrow
WN 840 · PHX → STL
departs 1:31 PM MT · arrives 5:27 PM CT
Forecast issued Tue 1:00 AM ET · 38h before departure
Watch this flight
Other days
Today 20%
Wed 11/11
Odds over time
Arrive at STL more than 15 minutes late?
24%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
24%
Leave 15+ late
33%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.6d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at STL more than 15 minutes late?
Calm-weather odds: 22% · changed +0 pts in 24h
+0 pts
24%
Yes 24%
No 76%
Leave PHX more than 15 minutes late?
Calm-weather odds: 34% · changed −5 pts in 24h
−5 pts
33%
Yes 33%
No 67%
Arrive at STL more than an hour late?
Calm-weather odds: 4% · changed −2 pts in 24h
−2 pts
3%
Yes 3%
No 97%
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
76%
15–30 min late
12%
30 min–1 hour late
8%
1–2 hours late
2%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
1pm departures from PHX are often late
↑
WN's recent on-time record
↑
This flight has been late 29% of the time recently
↓
Wednesdays in November are usually quieter than average
↓
Mostly benign weather forecast at PHX
Weather at each end
PHX (origin)
Gusts 8 kt
Ceiling none (clear)
Visibility 10+ mi
Precip none
STL (destination)
Gusts 22 kt
Ceiling 4,100 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.