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 4668
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 4668 · PHX → HOU
departs 5:05 AM MT · arrives 9:40 AM CT
Forecast issued Tue 9:00 PM ET · 35h before departure
Watch this flight
Other days
Today 7%
Wed 9/30 9%
Thu 10/1
Fri 10/2 3%
Sat 10/3 4%
Sun 10/4 4%
Mon 10/5 5%
Odds over time
Arrive at HOU more than 15 minutes late?
4%
chance · ±0 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
4%
Leave 15+ late
4%
Arrive 1h+ late
<1%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
2.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 3% · changed −2 pts in 24h
−2 pts
4%
Yes 4%
No 96%
Leave PHX more than 15 minutes late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
4%
Yes 4%
No 96%
Arrive at HOU more than an hour late?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to HOU?
On time or early
96%
15–30 min late
2%
30 min–1 hour late
<1%
1–2 hours late
<1%
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
↑
Mostly benign weather forecast at HOU
↑
Other factors
↑
HOU is prone to delays
↓
Early flights usually leave on time
↓
5am departures from PHX are usually not late
Weather at each end
PHX (origin)
Gusts 6 kt Ceiling none (clear) Visibility 10+ mi Precip none
HOU (destination)
Gusts 21 kt Ceiling 4,300 ft Visibility 10+ mi Precip 0.14 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.