Southwest Airlines

WN4521St. Louis to Tampa

Name: Southwest Airlines WN4521 St. Louis to Tampa: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Southwest Airlines flight WN4521 flies from St. Louis (STL) to Tampa (TPA), 1,400 km. Over August 2025 to July 2026 it usually arrives about 17 minutes late: 66% of 209 flights arrived within 15 minutes of schedule and 0% were cancelled (US Department of Transportation data).

On-time record, last 12 months

66%

on time (within 15 min)

23%

more than 30 min late

cancelled

+17 min

average arrival vs schedule

Every operation of WN4521, August 2025 to July 2026: 209 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as WN4521

St. Louis (STL) to Tampa (TPA)58 flights
Albuquerque (ABQ) to San Diego (SAN)57 flights
Oakland (OAK) to Los Angeles (LAX)31 flights
Las Vegas (LAS) to Oakland (OAK)17 flights
Sacramento (SMF) to Long Beach (LGB)13 flights
Santa Ana (SNA) to Phoenix Sky Harbor (PHX)13 flights
Dallas Love Field (DAL) to Memphis (MEM)5 flights
Las Vegas (LAS) to Los Angeles (LAX)5 flights
San Jose (SJC) to Los Angeles (LAX)3 flights
Dallas Love Field (DAL) to Orlando (MCO)3 flights

Other flights from St. Louis to Tampa

WN1260 WN1336 WN1382 WN149 WN1537 WN1578 WN1741 WN1842 WN1884 WN1970 WN1982 WN1988

More about St. Louis (STL) and Tampa (TPA).

Embed this on your site

A live badge for travel blogs, forums and trip reports. It updates as new data comes in, and links back here for the full stats.

Dark badge, HTML

<a href="https://tripstow.com/flights/wn4521" title="WN4521 is on time 66% of the time on TripStow"><img src="https://tripstow.com/badge/flights/wn4521.svg" alt="WN4521 is on time 66% of the time" width="360" height="88" loading="lazy"></a>

Light badge, HTML

<a href="https://tripstow.com/flights/wn4521" title="WN4521 is on time 66% of the time on TripStow"><img src="https://tripstow.com/badge/flights/wn4521.svg?theme=light" alt="WN4521 is on time 66% of the time" width="360" height="88" loading="lazy"></a>

Markdown, for forums and README files

[![WN4521 is on time 66% of the time](https://tripstow.com/badge/flights/wn4521.svg)](https://tripstow.com/flights/wn4521)

Flying soon?

Forward your booking to TripStow and get your trip built for you, with check-in reminders, punctuality for every flight and a map of everywhere you have been.

Start free