Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3389
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Yesterday
WN 3389 · MCI → SEA
departs 1:25 PM CT · arrives 3:15 PM PT
Forecast issued Sat 10:00 PM ET · 8h after departure
Watch this flight
Odds over time
Arrive at SEA more than 15 minutes late?
16%
chance · ±0 pts
+4 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
16%
Leave 15+ late
26%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
4.7d
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 16% · changed +4 pts in 24h
+4 pts
16%
Yes 16%
No 84%
Leave MCI more than 15 minutes late?
Calm-weather odds: 26% · changed +3 pts in 24h
+3 pts
26%
Yes 26%
No 74%
Arrive at SEA more than an hour late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SEA?
On time or early
84%
15–30 min late
7%
30 min–1 hour late
4%
1–2 hours late
3%
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
↑
This flight has been late 21% of the time recently
↑
1pm departures from MCI are often late
↓
Mostly benign weather forecast at MCI
↓
MCI usually runs smoothly
Weather at each end
MCI (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
SEA (destination)
Gusts 9 kt Ceiling 100 ft Visibility 2.5 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.