Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1558
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
WN 1558 · DAL → SEA
departs 8:55 PM CT · arrives 11:10 PM PT
Forecast issued Thu 6:00 PM ET · 52h before departure
Watch this flight
Odds over time
Arrive at SEA more than 15 minutes late?
37%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
37%
Leave 15+ late
51%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.0d
Now
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 28% · changed – in 24h
–
37%
Yes 37%
No 63%
Leave DAL more than 15 minutes late?
Calm-weather odds: 32% · changed – in 24h
–
51%
Yes 51%
No 49%
Arrive at SEA more than an hour late?
Calm-weather odds: 5% · changed – in 24h
–
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to SEA?
On time or early
62%
15–30 min late
14%
30 min–1 hour late
15%
1–2 hours late
5%
Over 2 hours late
3%
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
↑
DAL is prone to delays
↑
8pm departures from DAL are often late
↓
Saturdays in October are usually quieter than average
↓
DAL is quiet at that time
Weather at each end
DAL (origin)
Gusts 14 kt Ceiling 500 ft Visibility 4 mi Precip 0.32 in
SEA (destination)
Gusts 12 kt Ceiling 200 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.