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 4203
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
WN 4203 · PHX → HOU
departs 5:25 PM MT · arrives 10:05 PM CT
Forecast issued Sun 5:00 AM ET · 39h before departure
Watch this flight
Other days
Today 46%
Mon 10/5
Fri 10/9 36%
Odds over time
Arrive at HOU more than 15 minutes late?
27%
chance · ±1 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
27%
Leave 15+ late
34%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 19% · changed −1 pt in 24h
−1 pt
27%
Yes 27%
No 73%
Leave PHX more than 15 minutes late?
Calm-weather odds: 33% · changed −1 pt in 24h
−1 pt
34%
Yes 34%
No 66%
Arrive at HOU more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
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
72%
15–30 min late
9%
30 min–1 hour late
12%
1–2 hours late
5%
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
↑
Later flights pick up delays from earlier in the day
↑
This flight has been late 26% of the time recently
↑
WN's recent on-time record
↓
Mondays in October are usually quieter than average
↓
Mostly benign weather forecast at PHX
Weather at each end
PHX (origin)
Gusts 22 kt Ceiling none (clear) Visibility 10+ mi Precip none
HOU (destination)
Gusts 18 kt Ceiling 1,300 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.