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Flight Reliability

WN 1582 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1582 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

85%
Arrive within 15 minutes
0 min
Average arrival delay
0.8%
Cancelled
10 min early
Median arrival delay

Based on 358 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(56 flights)
  • Tue86%(44 flights)
  • Wed91%(43 flights)
  • Thu86%(55 flights)
  • Fri89%(53 flights)
  • Sat83%(48 flights)
  • Sun89%(55 flights)
On-time by departure window
  • 3–6 AM100%(18 flights)
  • 6–9 AM92%(179 flights)
  • 9 AM–12 PM87%(86 flights)
  • 3–6 PM53%(38 flights)
  • 6–9 PM73%(33 flights)
On-time trend by month
71%
May

Jun 56% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202556%18
July 202560%15
August 202590%31
September 2025100%30
October 202573%30
November 202597%31
December 202590%31
January 202697%35
February 202697%33
March 202675%32
April 202688%33
May 202671%35
Departures on time
85%
Diverted
0.3%
Flights flown
354
Months covered
12

Keep nerding

Based on 358 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.