Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3668
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Yesterday
WN 3668 · SJC → DEN
departs 2:35 PM PT · arrives 6:00 PM MT
Forecast issued Fri 10:00 PM ET · 4h after departure
Watch this flight
Other days
Fri 10/2
Sun 10/4 39%
Mon 10/5 30%
Fri 10/9 36%
Odds over time
Arrive at DEN more than 15 minutes late?
37%
chance · ±0 pts
−9 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
37%
Leave 15+ late
38%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
3.8d
2d
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 35% · changed −9 pts in 24h
−9 pts
37%
Yes 37%
No 63%
Leave SJC more than 15 minutes late?
Calm-weather odds: 38% · changed +3 pts in 24h
+3 pts
38%
Yes 38%
No 62%
Arrive at DEN more than an hour late?
Calm-weather odds: 6% · changed −1 pt in 24h
−1 pt
6%
Yes 6%
No 94%
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
63%
15–30 min late
18%
30 min–1 hour late
13%
1–2 hours late
4%
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
↑
Arrivals into DEN at that hour are often late
↑
This flight has been late 48% of the time recently
↑
2pm departures from SJC are often late
↓
DEN usually runs smoothly
Weather at each end
SJC (origin)
Gusts 5 kt Ceiling 700 ft Visibility 4 mi Precip none
DEN (destination)
Gusts 17 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.