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 4130
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
WN 4130 · DEN → SEA
departs 12:30 PM MT · arrives 2:25 PM PT
Forecast issued Wed 3:00 PM ET · 24h before departure
Watch this flight
Other days
Today 37%
Thu 10/1
Fri 10/2 31%
Sat 10/3 25%
Mon 10/5 31%
Tue 10/6 31%
Odds over time
Arrive at SEA more than 15 minutes late?
30%
chance · ±5 pts
+0 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
23%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
Now
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 25% · changed +0 pts in 24h
+0 pts
30%
Yes 30%
No 70%
Leave DEN more than 15 minutes late?
Calm-weather odds: 22% · changed −8 pts in 24h
−8 pts
23%
Yes 23%
No 77%
Arrive at SEA more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to SEA?
On time or early
70%
15–30 min late
10%
30 min–1 hour late
16%
1–2 hours late
3%
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
↑
This flight has been late 48% of the time recently
↑
SEA is prone to delays
↑
12pm departures from DEN are often late
↓
Mostly benign weather forecast at DEN
↓
Mostly benign weather forecast at SEA
Weather at each end
DEN (origin)
Gusts 21 kt Ceiling 8,000 ft Visibility 10+ mi Precip none
SEA (destination)
Gusts 7 kt Ceiling 7,000 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.