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 2171
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29
WN 2171 · KOA → LAS
departs 8:25 PM HT · arrives 5:05 AM PT
Forecast issued Tue 10:00 PM ET · 4h before departure
Watch this flight
Other days
Tue 9/29
Today 7%
Fri 10/2 7%
Sun 10/4 6%
Mon 10/5 7%
Tue 10/6 4%
Wed 10/7 5%
Odds over time
Arrive at LAS more than 15 minutes late?
7%
chance · ±1 pts
+2 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
7%
Leave 15+ late
13%
Arrive 1h+ late
2%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
3%
6%
9%
12%
2.6d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 6% · changed +2 pts in 24h
+2 pts
7%
Yes 7%
No 93%
Leave KOA more than 15 minutes late?
Calm-weather odds: 12% · changed +2 pts in 24h
+2 pts
13%
Yes 13%
No 87%
Arrive at LAS more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LAS?
On time or early
92%
15–30 min late
3%
30 min–1 hour late
2%
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
↑
Later flights pick up delays from earlier in the day
↑
LAS is prone to delays
↓
This flight has been late 13% of the time recently
↓
Tuesdays in September are usually quieter than average
Weather at each end
KOA (origin)
Gusts 11 kt Ceiling 5,000 ft Visibility 10+ mi Precip none
LAS (destination)
Gusts 27 kt Ceiling 4,700 ft Visibility 7 mi Precip 0.08 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.