Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SOUTHWEST · FLIGHT WN 3257 SCHEDULED · TYPICAL SCHEDULE

Friday, October 2

WN 3257 · COS → LAS

departs 12:35 PM MT · arrives 1:35 PM PT

Forecast issued Tue 9:00 PM ET · 66h before departure

Arrive at LAS more than 15 minutes late?

19% chance · ±5 pts +0 pts · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to LAS?

On time or early
81%
15–30 min late
4%
30 min–1 hour late
9%
1–2 hours late
5%
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

↑ LAS is prone to delays

↑ Arrivals into LAS at that hour are often late

↑ This flight has been late 32% of the time recently

↓ Mostly benign weather forecast at LAS

↓ Gusts to 25 kt forecast at COS that day

Weather at each end

COS (origin) Gusts25 kt Ceilingnone (clear) Visibility10+ mi Precipnone

LAS (destination) Gusts10 kt Ceilingnone (clear) Visibility10+ mi Precipnone

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.

WN 3257 · COS → LAS

Odds over time

How late will it get to LAS?