Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 596 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 596 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

74%
Arrive within 15 minutes
11 min
Average arrival delay
1.1%
Cancelled
0 min
Median arrival delay

Based on 435 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(63 flights)
  • Tue73%(62 flights)
  • Wed68%(60 flights)
  • Thu71%(59 flights)
  • Fri78%(54 flights)
  • Sat72%(57 flights)
  • Sun72%(75 flights)
On-time by departure window
  • 6–9 AM88%(84 flights)
  • 9 AM–12 PM81%(59 flights)
  • 12–3 PM86%(71 flights)
  • 3–6 PM62%(84 flights)
  • 6–9 PM61%(132 flights)
On-time trend by month
87%
May

Jun 44% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202544%43
July 202560%45
August 202573%33
September 202570%30
October 202577%31
November 202586%28
December 202576%29
January 202674%50
February 202683%60
March 202683%23
April 202682%27
May 202687%31
Departures on time
72%
Diverted
0%
Flights flown
430
Months covered
12

Keep nerding

Based on 435 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.