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Flight Reliability

WN 136 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 136 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

83%
Arrive within 15 minutes
2 min
Average arrival delay
0.4%
Cancelled
6 min early
Median arrival delay

Based on 478 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(67 flights)
  • Tue80%(76 flights)
  • Wed88%(77 flights)
  • Thu83%(70 flights)
  • Fri71%(69 flights)
  • Sat91%(55 flights)
  • Sun87%(62 flights)
On-time by departure window
  • 3–6 AM95%(37 flights)
  • 6–9 AM93%(67 flights)
  • 9 AM–12 PM81%(103 flights)
  • 12–3 PM84%(177 flights)
  • 3–6 PM68%(66 flights)
  • 6–9 PM81%(26 flights)
On-time trend by month
87%
May

Jun 77% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202575%32
August 202583%36
September 202582%34
October 202577%90
November 202598%42
December 202591%35
January 202679%28
February 202678%27
March 202689%35
April 202683%42
May 202687%45
Departures on time
78%
Diverted
0%
Flights flown
476
Months covered
12

Keep nerding

Based on 478 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.