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 4491
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 4491 · LAS → PIT
departs 1:05 PM PT · arrives 8:20 PM ET
Forecast issued Tue 7:00 PM ET · 45h before departure
Watch this flight
Other days
Thu 10/1
Fri 10/2 27%
Mon 10/5 26%
Odds over time
Arrive at PIT more than 15 minutes late?
30%
chance · ±5 pts
−3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
37%
Arrive 1h+ late
7%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.7d
Now
1d
12h
6h
Departs
Lands
Arrive at PIT more than 15 minutes late?
Calm-weather odds: 28% · changed −3 pts in 24h
−3 pts
30%
Yes 30%
No 70%
Leave LAS more than 15 minutes late?
Calm-weather odds: 37% · changed +0 pts in 24h
+0 pts
37%
Yes 37%
No 63%
Arrive at PIT more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
7%
Yes 7%
No 93%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to PIT?
On time or early
70%
15–30 min late
10%
30 min–1 hour late
13%
1–2 hours late
5%
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
↑
1pm departures from LAS are often late
↑
LAS is prone to delays
↑
WN's recent on-time record
↓
Mostly benign weather forecast at LAS
↓
PIT usually runs smoothly
Weather at each end
LAS (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
PIT (destination)
Gusts 17 kt Ceiling 9,000 ft 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.