Southwest Airlines

WN503Houston to Baltimore

Name: Southwest Airlines WN503 Houston to Baltimore: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Southwest Airlines flight WN503 flies from Houston (HOU) to Baltimore (BWI), 2,003 km. Over August 2025 to July 2026 it usually arrives about 7 minutes late: 76% of 455 flights arrived within 15 minutes of schedule and 0.9% were cancelled (US Department of Transportation data).

On-time record, last 12 months

76%

on time (within 15 min)

14%

more than 30 min late

0.9%

cancelled

+7 min

average arrival vs schedule

Every operation of WN503, August 2025 to July 2026: 455 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as WN503

Houston (HOU) to Baltimore (BWI)58 flights
Sacramento (SMF) to Santa Ana (SNA)58 flights
Nashville (BNA) to Denver (DEN)50 flights
Denver (DEN) to Salt Lake City (SLC)42 flights
Santa Ana (SNA) to Denver (DEN)24 flights
Salt Lake City (SLC) to Phoenix Sky Harbor (PHX)24 flights
Tucson (TUS) to Denver (DEN)23 flights
Cleveland Hopkins (CLE) to Denver (DEN)23 flights
Phoenix Sky Harbor (PHX) to Burbank (BUR)23 flights
San Jose (SJC) to Santa Ana (SNA)22 flights

Other flights from Houston to Baltimore

WN1193 WN1332 WN1358 WN1615 WN1640 WN1655 WN1657 WN1658 WN1724 WN1758 WN1822 WN184

More about Houston (HOU) and Baltimore (BWI).

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