Southwest Airlines

WN4579Seattle to Denver

Name: Southwest Airlines WN4579 Seattle to Denver: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Southwest Airlines flight WN4579 flies from Seattle Tacoma (SEA) to Denver (DEN), 1,645 km. Over August 2025 to July 2026 it usually arrives about 13 minutes late: 65% of 166 flights arrived within 15 minutes of schedule and 2.4% were cancelled (US Department of Transportation data).

On-time record, last 12 months

65%

on time (within 15 min)

24%

more than 30 min late

2.4%

cancelled

+13 min

average arrival vs schedule

Every operation of WN4579, August 2025 to July 2026: 166 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as WN4579

Seattle Tacoma (SEA) to Denver (DEN)40 flights
Tulsa (TUL) to Dallas Love Field (DAL)33 flights
Dallas Love Field (DAL) to Midland (MAF)26 flights
Orlando (MCO) to Washington (DCA)24 flights
Los Angeles (LAX) to Houston (HOU)18 flights
Denver (DEN) to Burbank (BUR)16 flights
Santa Ana (SNA) to Phoenix Sky Harbor (PHX)3 flights
Sacramento (SMF) to Santa Ana (SNA)2 flights
San Jose (SJC) to Santa Ana (SNA)1 flights
Orlando (MCO) to Dallas Love Field (DAL)1 flights

Other flights from Seattle to Denver

UA1049 UA1218 UA1263 UA1351 UA1374 UA1417 UA1479 UA1505 UA1715 UA1747 UA1795 UA1835

More about Seattle Tacoma (SEA) and Denver (DEN).

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