Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SOUTHWEST · FLIGHT WN 3354 SCHEDULED · TYPICAL ODDS

WN 3354 · SEA → PHX

departs 3:00 PM PT · arrives 5:50 PM MT
Forecast issued Tue 6:00 PM ET · 96h before departure

Typical odds Too early for a weather forecast — these are typical odds for this flight on a Saturday in October, from the weather this date has had in past years (the range shows how much they varied). They’ll switch to forecast-based odds about 3 days before departure.

Odds over time

Arrive at PHX more than 15 minutes late?
32% chance · ±12 pts +0 pts · 24h
HOW SURE WE ARE Low. This is mostly a starting point from history; weather forecasts haven't kicked in yet.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 4.8d Now 2d 1d 12h 6h Departs Lands

How late will it get to PHX?

  1. On time or early
    68%
  2. 15–30 min late
    13%
  3. 30 min–1 hour late
    10%
  4. 1–2 hours late
    6%
  5. Over 2 hours late
    2%
  6. Cancelled
    <1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.