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 4255
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
WN 4255 · AUS → HOU
departs 6:45 PM CT · arrives 7:45 PM CT
Forecast issued Thu 6:00 AM ET · 14h before departure
Watch this flight
Other days
Today
Fri 10/2 49%
Mon 10/5 26%
Tue 10/6 27%
Wed 10/7 26%
Odds over time
Arrive at HOU more than 15 minutes late?
84%
chance · ±3 pts
+10 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
84%
Leave 15+ late
72%
Arrive 1h+ late
30%
Cancelled
18%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
2.9d
2d
1d
Now
6h
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 37% · changed +10 pts in 24h
+10 pts
84%
Yes 84%
No 16%
Leave AUS more than 15 minutes late?
Calm-weather odds: 43% · changed +14 pts in 24h
+14 pts
72%
Yes 72%
No 28%
Arrive at HOU more than an hour late?
Calm-weather odds: 8% · changed +8 pts in 24h
+8 pts
30%
Yes 30%
No 70%
Cancelled?
Calm-weather odds: <1% · changed +8 pts in 24h
+8 pts
18%
Yes 18%
No 82%
How late will it get to HOU?
On time or early
13%
15–30 min late
23%
30 min–1 hour late
21%
1–2 hours late
14%
Over 2 hours late
11%
Cancelled
18%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 1,033 ft, 2.0 in of rain, thunderstorms forecast at AUS that day
↑
6pm departures from AUS are often late
↑
Later flights pick up delays from earlier in the day
↓
Thursdays in October are usually quieter than average
↓
AUS usually runs smoothly
Weather at each end
AUS (origin)
Gusts 20 kt Ceiling 767 ft Visibility 6.33333 mi Precip 2.00 in
HOU (destination)
Gusts 22 kt Ceiling 4,500 ft Visibility 9 mi Precip 0.06 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.