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Flight Reliability

WN 4532 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4532 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

84%
Arrive within 15 minutes
1 min
Average arrival delay
1.5%
Cancelled
6 min early
Median arrival delay

Based on 332 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(60 flights)
  • Tue91%(34 flights)
  • Wed91%(34 flights)
  • Thu85%(59 flights)
  • Fri78%(60 flights)
  • Sat76%(29 flights)
  • Sun90%(51 flights)
On-time by departure window
  • 3–6 AM100%(31 flights)
  • 6–9 AM92%(77 flights)
  • 9 AM–12 PM79%(97 flights)
  • 12–3 PM76%(67 flights)
  • 3–6 PM—(4 flights)
  • 6–9 PM78%(51 flights)
On-time trend by month
92%
May

Jun 77% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%26
July 202594%31
August 2025100%18
September 2025100%17
October 202586%14
November 202587%39
December 202574%35
January 202675%28
February 202671%28
March 202672%36
April 202690%29
May 202692%26
Departures on time
84%
Diverted
0%
Flights flown
327
Months covered
12

Keep nerding

Based on 332 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.