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Flight Reliability

WN 1536 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1536 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
2 min
Average arrival delay
0.7%
Cancelled
8 min early
Median arrival delay

Based on 411 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(56 flights)
  • Tue85%(58 flights)
  • Wed86%(57 flights)
  • Thu90%(57 flights)
  • Fri91%(57 flights)
  • Sat84%(61 flights)
  • Sun68%(62 flights)
On-time by departure window
  • 6–9 AM94%(72 flights)
  • 9 AM–12 PM91%(97 flights)
  • 12–3 PM76%(92 flights)
  • 3–6 PM80%(126 flights)
  • 6–9 PM76%(21 flights)
On-time trend by month
95%
May

Jun 85% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%33
July 202587%31
August 202587%31
September 202593%30
October 202581%31
November 202574%27
December 202586%29
January 202684%31
February 202679%28
March 202675%57
April 202686%42
May 202695%38
Departures on time
79%
Diverted
0%
Flights flown
408
Months covered
12

Keep nerding

Based on 411 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.