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 3566
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
WN 3566 · HOU → SEA
departs 2:45 PM CT · arrives 5:25 PM PT
Forecast issued Sun 7:00 AM ET · 33h before departure
Watch this flight
Other days
Mon 10/5
Fri 10/9 38%
Odds over time
Arrive at SEA more than 15 minutes late?
28%
chance · ±2 pts
−5 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
28%
Leave 15+ late
40%
Arrive 1h+ late
7%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.7d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 20% · changed −5 pts in 24h
−5 pts
28%
Yes 28%
No 72%
Leave HOU more than 15 minutes late?
Calm-weather odds: 33% · changed +0 pts in 24h
+0 pts
40%
Yes 40%
No 60%
Arrive at SEA more than an hour late?
Calm-weather odds: 5% · changed +2 pts in 24h
+2 pts
7%
Yes 7%
No 93%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SEA?
On time or early
72%
15–30 min late
12%
30 min–1 hour late
8%
1–2 hours late
6%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 30% of the time recently
↑
2pm departures from HOU are often late
↑
WN's recent on-time record
↓
Cloud base down to 200 ft, visibility down to 0.8 mi forecast at SEA that day
↓
Mondays in October are usually quieter than average
Weather at each end
HOU (origin)
Gusts 18 kt Ceiling 1,100 ft Visibility 10+ mi Precip none
SEA (destination)
Gusts 6 kt Ceiling 200 ft Visibility 8 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.