Schedule: the flights that flew on Thursday, Oct 22, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4552
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 29
WN 4552 · DEN → SLC
departs 3:25 PM MT · arrives 4:57 PM MT
Forecast issued Tue 2:00 AM ET · 63h before departure
Watch this flight
Other days
Thu 10/29
Fri 10/30 26%
Odds over time
Arrive at SLC more than 15 minutes late?
33%
chance · ±13 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
33%
Leave 15+ late
35%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.7d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 25% · changed – in 24h
–
33%
Yes 33%
No 67%
Leave DEN more than 15 minutes late?
Calm-weather odds: 34% · changed – in 24h
–
35%
Yes 35%
No 65%
Arrive at SLC more than an hour late?
Calm-weather odds: 3% · changed – in 24h
–
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 100%
How late will it get to SLC?
On time or early
67%
15–30 min late
16%
30 min–1 hour late
13%
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
↑
3pm departures from DEN are often late
↑
This flight has been late 25% 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 SLC
Weather at each end
DEN (origin)
Gusts 14 kt Ceiling none (clear) Visibility 10+ mi Precip none
SLC (destination)
Gusts 13 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.