Schedule: the flights that flew on Monday, Oct 26, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4437
SCHEDULED · TYPICAL SCHEDULE
Monday, November 2
WN 4437 · DAL → LAS
departs 8:16 PM CT · arrives 9:27 PM PT
Forecast issued Sat 3:00 AM ET · 67h before departure
Watch this flight
Other days
Mon 11/2
Thu 11/5 44%
Fri 11/6 48%
Odds over time
Arrive at LAS more than 15 minutes late?
51%
chance · ±10 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
51%
Leave 15+ late
55%
Arrive 1h+ late
16%
Cancelled
4%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
6.9d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 25% · changed – in 24h
–
51%
Yes 51%
No 49%
Leave DAL more than 15 minutes late?
Calm-weather odds: 45% · changed – in 24h
–
55%
Yes 55%
No 45%
Arrive at LAS 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
–
4%
Yes 4%
No 96%
How late will it get to LAS?
On time or early
47%
15–30 min late
16%
30 min–1 hour late
19%
1–2 hours late
8%
Over 2 hours late
7%
Cancelled
4%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Gusts to 33 kt forecast at DAL that day
↑
WN's recent on-time record
↑
Later flights pick up delays from earlier in the day
↓
Mondays in November are usually quieter than average
↓
Mostly benign weather forecast at LAS
Weather at each end
DAL (origin)
Gusts 32 kt Ceiling 3,700 ft Visibility 10+ mi Precip 0.11 in
LAS (destination)
Gusts 13 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.