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 4259
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
WN 4259 · DEN → LGB
departs 1:25 PM MT · arrives 2:50 PM PT
Forecast issued Thu 3:00 PM ET · 0h before departure
Watch this flight
Other days
Today
Fri 10/2 24%
Sat 10/3 20%
Sun 10/4 24%
Mon 10/5 21%
Tue 10/6 19%
Wed 10/7 18%
Odds over time
Arrive at LGB more than 15 minutes late?
25%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
25%
Leave 15+ late
28%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.8d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at LGB more than 15 minutes late?
Calm-weather odds: 25% · changed +1 pt in 24h
+1 pt
25%
Yes 25%
No 75%
Leave DEN more than 15 minutes late?
Calm-weather odds: 28% · changed +2 pts in 24h
+2 pts
28%
Yes 28%
No 72%
Arrive at LGB more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LGB?
On time or early
74%
15–30 min late
13%
30 min–1 hour late
8%
1–2 hours late
3%
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
↑
1pm departures from DEN are often late
↑
WN's recent on-time record
↑
Arrivals into LGB at that hour are often late
↓
Mostly benign weather forecast at DEN
↓
Cloud base down to 800 ft forecast at LGB that day
Weather at each end
DEN (origin)
Gusts 23 kt Ceiling 7,000 ft Visibility 10+ mi Precip none
LGB (destination)
Gusts 12 kt Ceiling 800 ft Visibility 4 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.