Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1801
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Tomorrow
WN 1801 · PHX → HOU
departs 12:45 PM MT · arrives 5:20 PM CT
Forecast issued Sat 5:00 PM ET · 23h before departure
Watch this flight
Odds over time
Arrive at HOU more than 15 minutes late?
35%
chance · ±2 pts
+5 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
35%
Leave 15+ late
30%
Arrive 1h+ late
5%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.7d
2d
Now
12h
6h
Departs
Lands
Arrive at HOU more than 15 minutes late?
Calm-weather odds: 22% · changed +5 pts in 24h
+5 pts
35%
Yes 35%
No 65%
Leave PHX more than 15 minutes late?
Calm-weather odds: 31% · changed +2 pts in 24h
+2 pts
30%
Yes 30%
No 70%
Arrive at HOU more than an hour late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
5%
Yes 5%
No 95%
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
64%
15–30 min late
19%
30 min–1 hour late
11%
1–2 hours late
4%
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
↑
Cloud base down to 500 ft, 0.4 in of rain forecast at HOU that day
↑
12pm departures from PHX are often late
↑
Arrivals into HOU at that hour are often late
↓
Sundays in October are usually quieter than average
↓
Gusts to 28 kt forecast at PHX that day
Weather at each end
PHX (origin)
Gusts 28 kt Ceiling none (clear) Visibility 10+ mi Precip none
HOU (destination)
Gusts 20 kt Ceiling 500 ft Visibility 4 mi Precip 0.40 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.