Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3241
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Today
WN 3241 · PHX → BOI
departs 9:30 PM MT · arrives 12:35 AM MT
Forecast issued Tue 9:00 PM ET · 4h before departure
Watch this flight
Other days
Today
Wed 9/30 28%
Sun 10/4 32%
Odds over time
Arrive at BOI more than 15 minutes late?
39%
chance · ±0 pts
+4 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
39%
Leave 15+ late
47%
Arrive 1h+ late
10%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at BOI more than 15 minutes late?
Calm-weather odds: 33% · changed +4 pts in 24h
+4 pts
39%
Yes 39%
No 61%
Leave PHX more than 15 minutes late?
Calm-weather odds: 37% · changed +0 pts in 24h
+0 pts
47%
Yes 47%
No 53%
Arrive at BOI more than an hour late?
Calm-weather odds: 9% · changed +3 pts in 24h
+3 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to BOI?
On time or early
61%
15–30 min late
11%
30 min–1 hour late
18%
1–2 hours late
7%
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
↑
Cloud base down to 1,300 ft, visibility down to 0.5 mi, 0.3 in of rain, thunderstorms forecast at PHX that day
↑
9pm departures from PHX are often late
↑
Later flights pick up delays from earlier in the day
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at BOI
Weather at each end
PHX (origin)
Gusts 21 kt Ceiling 1,300 ft Visibility 0.5 mi Precip 0.34 in
BOI (destination)
Gusts 19 kt Ceiling none (clear) 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.