Schedule: the flights that flew on Sunday, Nov 8, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3155
SCHEDULED · TYPICAL SCHEDULE
Sunday, November 15 Tomorrow
WN 3155 · STL → HOU
departs 6:46 PM CT · arrives 8:58 PM CT
Forecast issued Sat 10:00 AM ET · 34h before departure
Watch this flight
Other days
Today 51%
Sun 11/15
Mon 11/16 28%
Tue 11/17 15%
Wed 11/18 19%
Thu 11/19 41%
Odds over time
Arrive at HOU more than 15 minutes late?
42%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
42%
Leave 15+ late
45%
Arrive 1h+ late
10%
Cancelled
3%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 28% · changed +1 pt in 24h
+1 pt
42%
Yes 42%
No 58%
Leave STL more than 15 minutes late?
Calm-weather odds: 40% · changed +1 pt in 24h
+1 pt
45%
Yes 45%
No 55%
Arrive at HOU more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
How late will it get to HOU?
On time or early
56%
15–30 min late
17%
30 min–1 hour late
15%
1–2 hours late
8%
Over 2 hours late
2%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Gusts to 29 kt, cloud base down to 500 ft, visibility down to 2 mi, 1.8 in of rain forecast at HOU that day
↑
WN's recent on-time record
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at STL
↓
Sundays in November are usually quieter than average
Weather at each end
STL (origin)
Gusts 2 kt Ceiling none (clear) Visibility 10+ mi Precip none
HOU (destination)
Gusts 29 kt Ceiling 500 ft Visibility 2 mi Precip 1.78 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.