Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

SOUTHWEST · FLIGHT WN 439 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Tomorrow

WN 439 · DEN → LAS

departs 7:45 AM MT · arrives 8:40 AM PT

Forecast issued Sat 9:00 PM ET · 13h before departure

Arrive at LAS more than 15 minutes late?

9% chance · ±0 pts +3 pts · 24h

HOW SURE WE ARE Good. The odds now lean mostly on firmed-up weather forecasts.

How late will it get to LAS?

On time or early
91%
15–30 min late
6%
30 min–1 hour late
2%
1–2 hours late
<1%
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

↑ DEN is busy at that time

↑ This flight has been late 16% of the time recently

↑ LAS is prone to delays

↓ Early flights usually leave on time

↓ Mostly benign weather forecast at LAS

Weather at each end

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

LAS (destination) Gusts14 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 439 · DEN → LAS

Odds over time

How late will it get to LAS?