Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1684
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Tomorrow
WN 1684 · DEN → PHX
departs 9:00 PM MT · arrives 10:00 PM MT
Forecast issued Tue 11:00 PM ET · 24h before departure
Watch this flight
Other days
Today
Thu 10/1 31%
Fri 10/2 27%
Sat 10/3 27%
Sun 10/4 28%
Mon 10/5 29%
Tue 10/6 16%
Odds over time
Arrive at PHX more than 15 minutes late?
50%
chance · ±6 pts
−9 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
50%
Leave 15+ late
66%
Arrive 1h+ late
16%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
2d
Now
12h
6h
Departs
Lands
Arrive at PHX more than 15 minutes late?
Calm-weather odds: 20% · changed −9 pts in 24h
−9 pts
50%
Yes 50%
No 50%
Leave DEN more than 15 minutes late?
Calm-weather odds: 32% · changed −4 pts in 24h
−4 pts
66%
Yes 66%
No 34%
Arrive at PHX more than an hour late?
Calm-weather odds: 5% · changed −6 pts in 24h
−6 pts
16%
Yes 16%
No 84%
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
50%
15–30 min late
17%
30 min–1 hour late
17%
1–2 hours late
11%
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
↑
0.3 in of rain forecast at DEN that day
↑
9pm departures from DEN are often late
↑
Later flights pick up delays from earlier in the day
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at PHX
Weather at each end
DEN (origin)
Gusts 19 kt Ceiling 2,700 ft Visibility 10+ mi Precip 0.35 in
PHX (destination)
Gusts 9 kt Ceiling none (clear) Visibility 10+ mi Precip 0.03 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.