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 2789 SCHEDULED · TYPICAL ODDS

WN 2789 · ONT → PHX

departs 9:50 AM PT · arrives 11:05 AM MT
Forecast issued Tue 6:00 PM ET · 91h 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?
7% chance · ±1 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% 3% 6% 9% 12% 4.6d Now 2d 1d 12h 6h Departs Lands

How late will it get to PHX?

  1. On time or early
    93%
  2. 15–30 min late
    4%
  3. 30 min–1 hour late
    1%
  4. 1–2 hours late
    <1%
  5. Over 2 hours late
    <1%
  6. Cancelled
    <1%

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