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 670SCHEDULED · TYPICAL ODDS
WN 670 · SDF → PHX
departs 2:15 PM ET · arrives 2:55 PM MT
Forecast issued Mon 10:00 PM ET · 112h 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?
15%chance · ±2 pts– · 24h
HOW SURE WE ARELow. This is mostly a starting point from history; weather forecasts haven't kicked in yet.
How late will it get to PHX?
On time or early
85%
15 min–1 hour late
10%
Over 1 hour late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.