Southwest Airlines

WN421Colorado Springs to Denver

Name: Southwest Airlines WN421 Colorado Springs to Denver: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Southwest Airlines flight WN421 flies from Colorado Springs (COS) to Denver (DEN), 117 km. Over August 2025 to July 2026 it usually arrives about 2 minutes late: 82% of 361 flights arrived within 15 minutes of schedule and 0% were cancelled (US Department of Transportation data).

On-time record, last 12 months

82%

on time (within 15 min)

11%

more than 30 min late

cancelled

+2 min

average arrival vs schedule

Every operation of WN421, August 2025 to July 2026: 361 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as WN421

Colorado Springs (COS) to Denver (DEN)58 flights
San Francisco (SFO) to Austin Bergstrom (AUS)58 flights
Austin Bergstrom (AUS) to Phoenix Sky Harbor (PHX)58 flights
Dallas Love Field (DAL) to Orlando (MCO)29 flights
Atlanta (ATL) to Indianapolis (IND)27 flights
Windsor Locks (BDL) to Baltimore (BWI)26 flights
San Diego (SAN) to Albuquerque (ABQ)23 flights
Kansas City (MCI) to Austin Bergstrom (AUS)18 flights
Atlanta (ATL) to Orlando (MCO)18 flights
Orlando (MCO) to Baltimore (BWI)16 flights

Other flights from Colorado Springs to Denver

OO4630 OO4645 OO4647 OO4657 OO4675 OO4677 OO4696 OO4697 OO4707 OO4711 OO4719 OO4725

More about Colorado Springs (COS) and Denver (DEN).

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