Schedule: the flights that flew on Friday, Nov 6, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3660
SCHEDULED · TYPICAL SCHEDULE
Friday, November 13
WN 3660 · GRR → LAS
departs 3:06 PM ET · arrives 4:04 PM PT
Forecast issued Wed 4:00 AM ET · 59h before departure
Watch this flight
Other days
Thu 11/12 25%
Fri 11/13
Sun 11/15 41%
Mon 11/16 30%
Odds over time
Arrive at LAS more than 15 minutes late?
37%
chance · ±13 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
37%
Leave 15+ late
35%
Arrive 1h+ late
7%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.6d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 23% · changed – in 24h
–
37%
Yes 37%
No 63%
Leave GRR more than 15 minutes late?
Calm-weather odds: 34% · changed – in 24h
–
35%
Yes 35%
No 65%
Arrive at LAS more than an hour late?
Calm-weather odds: 6% · changed – in 24h
–
7%
Yes 7%
No 93%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to LAS?
On time or early
63%
15–30 min late
22%
30 min–1 hour late
8%
1–2 hours late
6%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
WN's recent on-time record
↑
LAS is prone to delays
↑
Arrivals into LAS at that hour are often late
↓
GRR usually runs smoothly
↓
Fridays in November are usually quieter than average
Weather at each end
GRR (origin)
Gusts 17 kt Ceiling 4,400 ft Visibility 10+ mi Precip 0.01 in
LAS (destination)
Gusts 26 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.