Southwest Airlines

WN321Harlingen to Houston

Name: Southwest Airlines WN321 Harlingen to Houston: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Southwest Airlines flight WN321 flies from Harlingen (HRL) to Houston (HOU), 446 km. Over August 2025 to July 2026 it usually arrives right on schedule: 85% of 355 flights arrived within 15 minutes of schedule and 0.8% were cancelled (US Department of Transportation data).

On-time record, last 12 months

85%

on time (within 15 min)

more than 30 min late

0.8%

cancelled

0 min

average arrival vs schedule

Every operation of WN321, August 2025 to July 2026: 355 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as WN321

Harlingen (HRL) to Houston (HOU)60 flights
San Francisco (SFO) to Denver (DEN)58 flights
Austin Bergstrom (AUS) to Las Vegas (LAS)58 flights
Baltimore (BWI) to Las Vegas (LAS)57 flights
Oakland (OAK) to Las Vegas (LAS)26 flights
Orlando (MCO) to West Palm Beach (PBI)23 flights
Phoenix Sky Harbor (PHX) to Santa Ana (SNA)19 flights
Las Vegas (LAS) to St. Louis (STL)13 flights
Islip (ISP) to Baltimore (BWI)11 flights
Denver (DEN) to Seattle Tacoma (SEA)5 flights

Other flights from Harlingen to Houston

WN1086 WN1148 WN1160 WN1334 WN136 WN1444 WN1682 WN1765 WN1964 WN1966 WN2083 WN2097

More about Harlingen (HRL) and Houston (HOU).

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