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Flight Reliability

WN 813 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 813 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

75%
Arrive within 15 minutes
9 min
Average arrival delay
0.5%
Cancelled
1 min early
Median arrival delay

Based on 397 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(55 flights)
  • Tue74%(53 flights)
  • Wed85%(52 flights)
  • Thu63%(56 flights)
  • Fri79%(53 flights)
  • Sat87%(53 flights)
  • Sun73%(73 flights)
On-time by departure window
  • 3–6 AM100%(24 flights)
  • 6–9 AM91%(81 flights)
  • 9 AM–12 PM87%(117 flights)
  • 12–3 PM77%(47 flights)
  • 3–6 PM66%(29 flights)
  • 6–9 PM43%(88 flights)
  • 9 PM–12 AM—(9 flights)
On-time trend by month
39%
May

Jun 71% → May 39% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%34
July 202569%35
August 202584%32
September 202577%30
October 202579%52
November 202573%30
December 202579%29
January 202691%34
February 202697%36
March 202692%24
April 202650%28
May 202639%31
Departures on time
72%
Diverted
0%
Flights flown
395
Months covered
12

Keep nerding

Based on 397 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.