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 663
SCHEDULED · TYPICAL SCHEDULE
Sunday, November 1
WN 663 · BOI → SMF
departs 2:46 PM MT · arrives 3:27 PM PT
Forecast issued Fri 4:00 PM ET · 50h before departure
Watch this flight
Odds over time
Arrive at SMF more than 15 minutes late?
25%
chance · ±1 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
25%
Leave 15+ late
28%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.7d
Now
1d
12h
6h
Departs
Lands
Arrive at SMF more than 15 minutes late?
Calm-weather odds: 25% · changed −2 pts in 24h
−2 pts
25%
Yes 25%
No 75%
Leave BOI more than 15 minutes late?
Calm-weather odds: 25% · changed +0 pts in 24h
+0 pts
28%
Yes 28%
No 72%
Arrive at SMF more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SMF?
On time or early
74%
15–30 min late
9%
30 min–1 hour late
10%
1–2 hours late
3%
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
↑
WN's recent on-time record
↑
SMF is prone to delays
↑
Later flights pick up delays from earlier in the day
↓
Sundays in November are usually quieter than average
↓
BOI usually runs smoothly
Weather at each end
BOI (origin)
Gusts 24 kt Ceiling 800 ft Visibility 2 mi Precip 0.23 in
SMF (destination)
Gusts 9 kt Ceiling 2,000 ft Visibility 10+ mi Precip 0.03 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.