Schedule: the flights that flew on Tuesday, Nov 3, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1543
SCHEDULED · TYPICAL SCHEDULE
Tuesday, November 10
WN 1543 · DEN → SEA
departs 8:46 AM MT · arrives 10:34 AM PT
Forecast issued Sat 8:00 PM ET · 63h before departure
Watch this flight
Other days
Tue 11/10
Wed 11/11 39%
Odds over time
Arrive at SEA more than 15 minutes late?
33%
chance · ±6 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
33%
Leave 15+ late
15%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.4d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 18% · changed – in 24h
–
33%
Yes 33%
No 67%
Leave DEN more than 15 minutes late?
Calm-weather odds: 12% · changed – in 24h
–
15%
Yes 15%
No 85%
Arrive at SEA more than an hour late?
Calm-weather odds: 2% · changed – in 24h
–
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to SEA?
On time or early
67%
15–30 min late
19%
30 min–1 hour late
9%
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
↑
0.5 in of rain forecast at SEA that day
↑
Arrivals into SEA at that hour are often late
↑
This flight has been late 14% of the time recently
↓
Mostly benign weather forecast at DEN
↓
Tuesdays in November are usually quieter than average
Weather at each end
DEN (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
SEA (destination)
Gusts 14 kt Ceiling 1,500 ft Visibility 5 mi Precip 0.29 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.