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 1684
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Today
WN 1684 · DEN → PHX
departs 9:00 PM MT · arrives 10:00 PM MT
Forecast issued Tue 9:00 PM ET · 2h before departure
Watch this flight
Other days
Today
Wed 9/30 50%
Thu 10/1 33%
Fri 10/2 27%
Sat 10/3 27%
Sun 10/4 28%
Mon 10/5 29%
Odds over time
Arrive at PHX more than 15 minutes late?
39%
chance · ±0 pts
+6 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
39%
Leave 15+ late
51%
Arrive 1h+ late
13%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at PHX more than 15 minutes late?
Calm-weather odds: 30% · changed +6 pts in 24h
+6 pts
39%
Yes 39%
No 61%
Leave DEN more than 15 minutes late?
Calm-weather odds: 42% · changed +8 pts in 24h
+8 pts
51%
Yes 51%
No 49%
Arrive at PHX more than an hour late?
Calm-weather odds: 10% · changed +5 pts in 24h
+5 pts
13%
Yes 13%
No 87%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to PHX?
On time or early
61%
15–30 min late
17%
30 min–1 hour late
9%
1–2 hours late
11%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Later flights pick up delays from earlier in the day
↑
9pm departures from DEN are often late
↑
Cloud base down to 1,300 ft, visibility down to 0.5 mi, 0.3 in of rain, thunderstorms forecast at PHX that day
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at DEN
Weather at each end
DEN (origin)
Gusts 9 kt Ceiling 6,000 ft Visibility 10+ mi Precip none
PHX (destination)
Gusts 21 kt Ceiling 1,300 ft Visibility 0.5 mi Precip 0.34 in
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.