Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4259
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
WN 4259 · DEN → LGB
departs 2:45 PM MT · arrives 4:10 PM PT
Forecast issued Thu 7:00 PM ET · 46h before departure
Watch this flight
Other days
Today 24%
Fri 10/2 25%
Sat 10/3
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?
19%
chance · ±3 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
26%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.8d
Now
1d
12h
6h
Departs
Lands
Arrive at LGB more than 15 minutes late?
Calm-weather odds: 16% · changed −2 pts in 24h
−2 pts
19%
Yes 19%
No 81%
Leave DEN more than 15 minutes late?
Calm-weather odds: 22% · changed +1 pt in 24h
+1 pt
26%
Yes 26%
No 74%
Arrive at LGB more than an hour late?
Calm-weather odds: 3% · 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 100%
How late will it get to LGB?
On time or early
80%
15–30 min late
9%
30 min–1 hour late
6%
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
↑
2pm departures from DEN are often late
↑
This flight has been late 40% of the time recently
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at DEN
↓
Mostly benign weather forecast at LGB
Weather at each end
DEN (origin)
Gusts 24 kt Ceiling none (clear) Visibility 10+ mi Precip none
LGB (destination)
Gusts 13 kt Ceiling none (clear) Visibility 7 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.