Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 2456
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 2456 · LGA → DEN
departs 4:25 PM ET · arrives 7:05 PM MT
Forecast issued Thu 10:00 PM ET · 6h after departure
Watch this flight
Other days
Thu 10/1
Today 60%
Mon 10/5 33%
Fri 10/9 34%
Odds over time
Arrive at DEN more than 15 minutes late?
41%
chance · ±0 pts
−7 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
41%
Leave 15+ late
51%
Arrive 1h+ late
14%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.7d
2d
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 41% · changed −7 pts in 24h
−7 pts
41%
Yes 41%
No 59%
Leave LGA more than 15 minutes late?
Calm-weather odds: 50% · changed −1 pt in 24h
−1 pt
51%
Yes 51%
No 49%
Arrive at DEN more than an hour late?
Calm-weather odds: 15% · changed −1 pt in 24h
−1 pt
14%
Yes 14%
No 86%
Cancelled?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to DEN?
On time or early
58%
15–30 min late
8%
30 min–1 hour late
19%
1–2 hours late
9%
Over 2 hours late
5%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into DEN at that hour are often late
↑
This flight has been late 45% of the time recently
↑
4pm departures from LGA are often late
↓
Mostly benign weather forecast at LGA
↓
Other factors
Weather at each end
LGA (origin)
Gusts 10 kt Ceiling 5,000 ft Visibility 10+ mi Precip none
DEN (destination)
Gusts 21 kt Ceiling 7,000 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.