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Flight Reliability

WN 4592 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4592 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

85%
Arrive within 15 minutes
2 min
Average arrival delay
1.8%
Cancelled
4 min early
Median arrival delay

Based on 224 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(35 flights)
  • Tue90%(31 flights)
  • Wed83%(30 flights)
  • Thu90%(31 flights)
  • Fri82%(34 flights)
  • Sat95%(20 flights)
  • Sun78%(37 flights)
On-time by departure window
  • 6–9 AM99%(80 flights)
  • 9 AM–12 PM91%(43 flights)
  • 3–6 PM67%(58 flights)
  • 6–9 PM78%(37 flights)
On-time trend by month
56%
May

Jun 100% → May 56% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%26
July 2025100%31
December 202564%11
January 202689%28
February 202697%34
March 202676%29
April 202680%25
May 202656%25
Departures on time
81%
Diverted
0.9%
Flights flown
218
Months covered
10

Keep nerding

Based on 224 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.