Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4370
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 4370 · BUR → LAS
departs 6:10 PM PT · arrives 7:20 PM PT
Forecast issued Fri 12:00 PM ET · 33h before departure
Watch this flight
Other days
Today 48%
Sat 10/3
Sun 10/4 37%
Mon 10/5 24%
Odds over time
Arrive at LAS more than 15 minutes late?
20%
chance · ±6 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
20%
Leave 15+ late
28%
Arrive 1h+ late
10%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.0d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 15% · changed −2 pts in 24h
−2 pts
20%
Yes 20%
No 80%
Leave BUR more than 15 minutes late?
Calm-weather odds: 23% · changed +0 pts in 24h
+0 pts
28%
Yes 28%
No 72%
Arrive at LAS more than an hour late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LAS?
On time or early
80%
15–30 min late
7%
30 min–1 hour late
2%
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
↑
Later flights pick up delays from earlier in the day
↑
LAS is prone to delays
↑
Arrivals into LAS at that hour are often late
↓
Mostly benign weather forecast at LAS
↓
WN's recent on-time record
Weather at each end
BUR (origin)
Gusts 15 kt Ceiling none (clear) Visibility 10+ mi Precip none
LAS (destination)
Gusts 11 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.