MARKETING CARRIER REPORT
WN
Southwest Airlines historical flight reliability
Aggregate arrival outcomes across 1,390,634 domestic scheduled reportable flights marketed by Southwest Airlines in July 2025–June 2026.
HISTORICAL ROUTE SIGNALGenerally reliable
75.7%arrived on time
14.0%30+ min late
0.9%cancelled
1,390,634scheduled flights
LARGEST QUALIFYING SAMPLES
SEARCH ROUTES →Southwest Airlines route reports
DAL→HOUDallas, TX (DAL) to Houston, TX (HOU)4,063 flights analyzedGenerally reliable72.7%on timeHOU→DALHouston, TX (HOU) to Dallas, TX (DAL)4,060 flights analyzedGenerally reliable79.0%on timeDEN→PHXDenver, CO (DEN) to Phoenix, AZ (PHX)3,950 flights analyzedGenerally reliable71.1%on timePHX→DENPhoenix, AZ (PHX) to Denver, CO (DEN)3,942 flights analyzedGenerally reliable72.0%on timeSMF→SANSacramento, CA (SMF) to San Diego, CA (SAN)3,810 flights analyzedGenerally reliable70.4%on timeSAN→SMFSan Diego, CA (SAN) to Sacramento, CA (SMF)3,807 flights analyzedGenerally reliable75.0%on timeSAN→SJCSan Diego, CA (SAN) to San Jose, CA (SJC)3,741 flights analyzedGenerally reliable75.3%on timeSJC→SANSan Jose, CA (SJC) to San Diego, CA (SAN)3,740 flights analyzedVariable69.9%on timeLAS→SANLas Vegas, NV (LAS) to San Diego, CA (SAN)3,738 flights analyzedVariable61.8%on timeSAN→LASSan Diego, CA (SAN) to Las Vegas, NV (LAS)3,730 flights analyzedGenerally reliable73.7%on timeMCO→BWIOrlando, FL (MCO) to Baltimore, MD (BWI)3,584 flights analyzedGenerally reliable75.2%on timeBWI→MCOBaltimore, MD (BWI) to Orlando, FL (MCO)3,581 flights analyzedGenerally reliable75.1%on timePHX→LASPhoenix, AZ (PHX) to Las Vegas, NV (LAS)3,447 flights analyzedGenerally reliable76.5%on timeLAS→PHXLas Vegas, NV (LAS) to Phoenix, AZ (PHX)3,446 flights analyzedGenerally reliable75.5%on timeSMF→LASSacramento, CA (SMF) to Las Vegas, NV (LAS)3,432 flights analyzedGenerally reliable78.4%on timeLAS→SMFLas Vegas, NV (LAS) to Sacramento, CA (SMF)3,432 flights analyzedGenerally reliable76.7%on timeLAS→SJCLas Vegas, NV (LAS) to San Jose, CA (SJC)3,255 flights analyzedGenerally reliable77.6%on timeSJC→LASSan Jose, CA (SJC) to Las Vegas, NV (LAS)3,241 flights analyzedGenerally reliable79.2%on time
Network averages hide route mix.
An airline's national result reflects where and when it flies. A route-specific comparison is usually more useful for a booking decision.