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WanderNerd

Flight Reliability

WN 1936 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1936 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

78%
Arrive within 15 minutes
6 min
Average arrival delay
0.7%
Cancelled
4 min early
Median arrival delay

Based on 409 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(62 flights)
  • Tue84%(44 flights)
  • Wed77%(43 flights)
  • Thu83%(60 flights)
  • Fri82%(60 flights)
  • Sat77%(74 flights)
  • Sun72%(61 flights)
On-time by departure window
  • 6–9 AM86%(117 flights)
  • 9 AM–12 PM71%(62 flights)
  • 12–3 PM72%(58 flights)
  • 3–6 PM61%(46 flights)
  • 6–9 PM60%(20 flights)
  • 9 PM–12 AM87%(101 flights)
On-time trend by month
59%
May

Jun 80% → May 59% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%55
July 202559%54
August 202578%36
September 2025100%30
October 202587%30
November 202593%30
December 202565%31
January 202694%35
February 202690%29
March 202667%30
April 202664%22
May 202659%22
Departures on time
75%
Diverted
0.5%
Flights flown
404
Months covered
12

Based on 409 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.