Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1227
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
WN 1227 · COS → LAS
departs 7:55 PM MT · arrives 8:55 PM PT
Forecast issued Wed 2:00 AM ET · 44h before departure
Watch this flight
Other days
Today 45%
Thu 10/1
Fri 10/2 23%
Sat 10/3 15%
Mon 10/5 20%
Tue 10/6 14%
Odds over time
Arrive at LAS more than 15 minutes late?
21%
chance · ±6 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
21%
Leave 15+ late
35%
Arrive 1h+ late
9%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
Now
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 19% · changed −2 pts in 24h
−2 pts
21%
Yes 21%
No 79%
Leave COS more than 15 minutes late?
Calm-weather odds: 28% · changed +1 pt in 24h
+1 pt
35%
Yes 35%
No 65%
Arrive at LAS more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
1%
Yes 1%
No 99%
How late will it get to LAS?
On time or early
78%
15–30 min late
0%
30 min–1 hour late
11%
1–2 hours late
6%
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
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into LAS at that hour are often late
↑
WN's recent on-time record
↓
Mostly benign weather forecast at LAS
↓
COS usually runs smoothly
Weather at each end
COS (origin)
Gusts 38 kt Ceiling 2,700 ft Visibility 3 mi Precip 0.12 in
LAS (destination)
Gusts 9 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.