Tracked live by the FAA. The scheduled times shown are from a typical Monday because the FAA's flight plan was first seen after takeoff.

SOUTHWEST · FLIGHT WN 3451 DELAYED: NOW PLANNED TO TAKE OFF 10:27 PM PT (37 MIN LATER THAN FIRST FILED)
Tomorrow

WN 3451 · LAX → PHX

departs 12:44 AM PT · arrives 2:11 AM MT
Forecast issued Sun 9:00 PM ET · 7h before departure

Odds over time

Arrive at PHX more than 15 minutes late?
32% chance · ±0 pts +13 pts · 24h
HOW SURE WE ARE Good. The odds now lean mostly on firmed-up weather forecasts.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 6.2d 2d 1d 12h Now Departs Lands

How late will it get to PHX?

  1. On time or early
    67%
  2. 15–30 min late
    20%
  3. 30 min–1 hour late
    8%
  4. 1–2 hours late
    3%
  5. Over 2 hours late
    2%
  6. Cancelled
    1%

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