Southwest Airlines

WN4253San Jose to Ontario

Name: Southwest Airlines WN4253 San Jose to Ontario: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Southwest Airlines flight WN4253 flies from San Jose (SJC) to Ontario (ONT), 536 km. Over August 2025 to July 2026 it usually arrives about 10 minutes late: 72% of 208 flights arrived within 15 minutes of schedule and 0.5% were cancelled (US Department of Transportation data).

On-time record, last 12 months

72%

on time (within 15 min)

17%

more than 30 min late

0.5%

cancelled

+10 min

average arrival vs schedule

Every operation of WN4253, August 2025 to July 2026: 208 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as WN4253

San Jose (SJC) to Ontario (ONT)58 flights
San Diego (SAN) to San Francisco (SFO)57 flights
Phoenix Sky Harbor (PHX) to San Antonio (SAT)30 flights
Nashville (BNA) to San Diego (SAN)24 flights
Houston (HOU) to Fort Lauderdale Hollywood (FLL)12 flights
Ontario (ONT) to Phoenix Sky Harbor (PHX)8 flights
Oakland (OAK) to Seattle Tacoma (SEA)8 flights
San Antonio (SAT) to Atlanta (ATL)5 flights
Baltimore (BWI) to Atlanta (ATL)3 flights
Kansas City (MCI) to Orlando (MCO)1 flights

Other flights from San Jose to Ontario

WN1138 WN1173 WN1315 WN1317 WN1499 WN1522 WN1629 WN1642 WN1786 WN1827 WN2226 WN2310

More about San Jose (SJC) and Ontario (ONT).

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