WN3420Southwest Airlines · PHX → HOU
live · 12m ago
Route confirmed Southwest Airlines

WN3420 PhoenixPHX · 20:55 HoustonHOU · 01:25

WN3420 by Southwest Airlines flies from Phoenix (PHX) to Houston (HOU) for the Mon, Oct 19 departure.

Right nowExpected in Houston · today
01:25

arrival expected at HOU · on schedule

Typical arrival+30 minmedian over 1 operations

The route today

live boards
PHXPhoenixModerate riskPHX delay board →
HOUHoustonOn-time likelyHOU delay board →
PHX→HOUevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
39%Chance of 15+ min delay
0.9%Chance of cancellation
+7 minAvg hub delay right now

Conditions at PHX and HOU are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Phoenix to Houston flights today

same route · Southwest Airlines
WN3396departs 05:00
WN2067departs 05:05
WN8806departs 05:30
WN8807departs 05:30
WN2060departs 05:35
WN3397departs 07:25

If WN3420 is cancelled, these are the other Southwest Airlines nonstop flights from Phoenix to Houston on the same day, with scheduled departure times in PHX local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN3420 actually runs

Pro Flight Search has tracked every published board update for WN3420 across the PHX and HOU boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +30 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN3420 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-16CANCELLED
10-15PHX HOU 01:25 01:55 (+30)

Board clocks recorded as PHX and HOU published them.

Planning around WN3420? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — WN3420 Phoenix to Houston on-time performance, measured from the PHX and HOU airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3420
How we measure this →