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Flight Reliability

WN 2587 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2587 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

79%
Arrive within 15 minutes
6 min
Average arrival delay
0.6%
Cancelled
5 min early
Median arrival delay

Based on 336 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon66%(38 flights)
  • Tue93%(57 flights)
  • Wed94%(54 flights)
  • Thu85%(39 flights)
  • Fri64%(42 flights)
  • Sat84%(49 flights)
  • Sun61%(54 flights)
On-time by departure window
  • 6–9 AM85%(75 flights)
  • 9 AM–12 PM94%(18 flights)
  • 12–3 PM81%(52 flights)
  • 3–6 PM85%(65 flights)
  • 6–9 PM71%(114 flights)
  • 9 PM–12 AM—(9 flights)
On-time trend by month
74%
May

Jun 91% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%44
July 202584%55
August 202574%31
September 202583%30
October 202572%43
November 202558%19
December 202557%14
March 202690%31
April 202684%31
May 202674%31
Departures on time
73%
Diverted
0.3%
Flights flown
333
Months covered
11

Keep nerding

Based on 336 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.