tailodds FORECAST

Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SOUTHWEST · FLIGHT WN 3503 SCHEDULED · TYPICAL ODDS

WN 3503 · DEN → SAN

departs 12:55 PM MT · arrives 2:15 PM PT
Forecast issued Mon 10:00 PM ET · 89h before departure

Typical odds Too early for a weather forecast — these are typical odds for this flight on a Friday 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.

Arrive at SAN more than 15 minutes late?
29% chance · ±3 pts – · 24h
HOW SURE WE ARE Low. This is mostly a starting point from history; weather forecasts haven't kicked in yet.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% Now 2d 1d 12h 6h Departs Lands

How late will it get to SAN?

  1. On time or early
    70%
  2. 15 min–1 hour late
    22%
  3. Over 1 hour late
    7%
  4. Cancelled
    <1%

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