Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

SOUTHWEST · FLIGHT WN 3174 LANDED 12:54 AM PT, ~51 MIN LATE · SCHEDULED TIME UNKNOWN

Sunday, October 4 Yesterday

WN 3174 · PDX → LAS

took off 11:11 PM PT · landed 12:54 AM PT (scheduled time unknown)

Forecast issued Sun 10:00 PM ET · 3h before departure

Arrive at LAS more than 15 minutes late?

46% chance · ±0 pts +13 pts · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

What’s moving the odds

↑ Later flights pick up delays from earlier in the day

↑ Arrivals into LAS at that hour are often late

↑ WN's recent on-time record

↓ Mostly benign weather forecast at LAS

↓ Mostly benign weather forecast at PDX

Weather at each end

PDX (origin) Gusts6 kt Ceilingnone (clear) Visibility10+ mi Precipnone

LAS (destination) Gusts7 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 3174 · PDX → LAS

Odds over time