Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3335
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 3335 · PHX → COS
departs 9:55 PM MT · arrives 12:40 AM MT
Forecast issued Fri 10:00 AM ET · 63h before departure
Watch this flight
Other days
Sun 10/4
Tue 10/6 30%
Wed 10/7 30%
Odds over time
Arrive at COS more than 15 minutes late?
35%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
35%
Leave 15+ late
43%
Arrive 1h+ late
10%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.1d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at COS more than 15 minutes late?
Calm-weather odds: 30% · changed – in 24h
–
35%
Yes 35%
No 65%
Leave PHX more than 15 minutes late?
Calm-weather odds: 42% · changed – in 24h
–
43%
Yes 43%
No 57%
Arrive at COS more than an hour late?
Calm-weather odds: 8% · changed – in 24h
–
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 100%
How late will it get to COS?
On time or early
65%
15–30 min late
9%
30 min–1 hour late
16%
1–2 hours late
9%
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
↑
9pm departures from PHX are often late
↑
This flight has been late 37% of the time recently
↑
WN's recent on-time record
↓
Gusts to 27 kt forecast at PHX that day
↓
Sundays in October are usually quieter than average
Weather at each end
PHX (origin)
Gusts 27 kt Ceiling none (clear) Visibility 10+ mi Precip none
COS (destination)
Gusts 27 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.