Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 2553
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Today
WN 2553 · RDU → DEN
departs 6:20 PM ET · arrives 8:05 PM MT
Forecast issued Tue 9:00 PM ET · 3h after departure
Watch this flight
Other days
Today
Wed 9/30 56%
Odds over time
Arrive at DEN more than 15 minutes late?
24%
chance · ±1 pts
+3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
24%
Leave 15+ late
28%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 16% · changed +3 pts in 24h
+3 pts
24%
Yes 24%
No 76%
Leave RDU more than 15 minutes late?
Calm-weather odds: 22% · changed +8 pts in 24h
+8 pts
28%
Yes 28%
No 72%
Arrive at DEN more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
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
76%
15–30 min late
15%
30 min–1 hour late
6%
1–2 hours late
2%
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
↑
Arrivals into DEN at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
6pm departures from RDU are often late
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at RDU
Weather at each end
RDU (origin)
Gusts 5 kt Ceiling 6,000 ft Visibility 8.5 mi Precip none
DEN (destination)
Gusts 9 kt Ceiling 6,000 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.