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 1855
SCHEDULED · TYPICAL SCHEDULE
Sunday, November 1
WN 1855 · PHX → BOI
departs 3:26 PM MT · arrives 5:36 PM MT
Forecast issued Fri 5:00 PM ET · 49h before departure
Watch this flight
Odds over time
Arrive at BOI more than 15 minutes late?
54%
chance · ±3 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
54%
Leave 15+ late
60%
Arrive 1h+ late
16%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
6.7d
Now
1d
12h
6h
Departs
Lands
Arrive at BOI more than 15 minutes late?
Calm-weather odds: 33% · changed – in 24h
–
54%
Yes 54%
No 46%
Leave PHX more than 15 minutes late?
Calm-weather odds: 47% · changed – in 24h
–
60%
Yes 60%
No 40%
Arrive at BOI more than an hour late?
Calm-weather odds: 6% · changed – in 24h
–
16%
Yes 16%
No 84%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
1%
Yes 1%
No 99%
How late will it get to BOI?
On time or early
46%
15–30 min late
19%
30 min–1 hour late
18%
1–2 hours late
8%
Over 2 hours late
7%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 100 ft, visibility down to 0.5 mi, 1.5 in of rain forecast at PHX that day
↑
WN's recent on-time record
↑
3pm departures from PHX are often late
↓
Sundays in November are usually quieter than average
↓
BOI usually runs smoothly
Weather at each end
PHX (origin)
Gusts 16 kt Ceiling 100 ft Visibility 0.5 mi Precip 1.46 in
BOI (destination)
Gusts 24 kt Ceiling 800 ft Visibility 2 mi Precip 0.23 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.