Schedule: the flights that flew on Sunday, Oct 25, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3727
SCHEDULED · TYPICAL SCHEDULE
Sunday, November 1 Tomorrow
WN 3727 · SEA → SJC
departs 9:11 PM PT · arrives 11:23 PM PT
Forecast issued Sat 12:00 PM ET · 37h before departure
Watch this flight
Odds over time
Arrive at SJC more than 15 minutes late?
50%
chance · ±7 pts
+11 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
50%
Leave 15+ late
52%
Arrive 1h+ late
14%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
7.0d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SJC more than 15 minutes late?
Calm-weather odds: 41% · changed +11 pts in 24h
+11 pts
50%
Yes 50%
No 50%
Leave SEA more than 15 minutes late?
Calm-weather odds: 50% · changed +2 pts in 24h
+2 pts
52%
Yes 52%
No 48%
Arrive at SJC more than an hour late?
Calm-weather odds: 14% · changed +1 pt in 24h
+1 pt
14%
Yes 14%
No 86%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SJC?
On time or early
49%
15–30 min late
23%
30 min–1 hour late
13%
1–2 hours late
11%
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
↑
WN's recent on-time record
↑
Later flights pick up delays from earlier in the day
↑
9pm departures from SEA are often late
↓
Cloud base down to 100 ft, visibility down to 0.3 mi forecast at SEA that day
↓
Sundays in November are usually quieter than average
Weather at each end
SEA (origin)
Gusts 5 kt Ceiling 100 ft Visibility 0.3 mi Precip none
SJC (destination)
Gusts 15 kt Ceiling 7,000 ft Visibility 10+ mi Precip 0.02 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.