Southwest Airlines

WN121Phoenix to Boise

Name: Southwest Airlines WN121 Phoenix to Boise: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Southwest Airlines flight WN121 flies from Phoenix Sky Harbor (PHX) to Boise (BOI), 1,184 km. Over August 2025 to July 2026 it usually arrives about 6 minutes late: 79% of 375 flights arrived within 15 minutes of schedule and 0% were cancelled (US Department of Transportation data).

On-time record, last 12 months

79%

on time (within 15 min)

13%

more than 30 min late

cancelled

+6 min

average arrival vs schedule

Every operation of WN121, August 2025 to July 2026: 375 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as WN121

Phoenix Sky Harbor (PHX) to Boise (BOI)59 flights
Albuquerque (ABQ) to Houston (HOU)58 flights
Indianapolis (IND) to Orlando (MCO)42 flights
Las Vegas (LAS) to Los Angeles (LAX)42 flights
Nashville (BNA) to Savannah Hilton Head (SAV)25 flights
Baltimore (BWI) to Denver (DEN)21 flights
Austin Bergstrom (AUS) to Indianapolis (IND)16 flights
Las Vegas (LAS) to El Paso (ELP)16 flights
El Paso (ELP) to Austin Bergstrom (AUS)16 flights
Savannah Hilton Head (SAV) to Houston (HOU)10 flights

Other flights from Phoenix to Boise

OO3001 OO3029 OO3096 OO3249 OO3268 OO3428 OO4889 OO4907 OO4912 OO4921 OO4934 OO4935

More about Phoenix Sky Harbor (PHX) and Boise (BOI).

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