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Flight Reliability

WN 1015 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1015 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
0.5%
Cancelled
4 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(47 flights)
  • Tue76%(59 flights)
  • Wed75%(60 flights)
  • Thu90%(49 flights)
  • Fri77%(47 flights)
  • Sat92%(36 flights)
  • Sun62%(61 flights)
On-time by departure window
  • 3–6 AM96%(25 flights)
  • 6–9 AM91%(116 flights)
  • 9 AM–12 PM66%(55 flights)
  • 12–3 PM75%(52 flights)
  • 3–6 PM71%(24 flights)
  • 6–9 PM72%(86 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
81%
May

Jun 82% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%34
July 202577%35
August 202576%21
September 202582%17
October 202596%27
November 202569%36
December 202581%32
January 202683%48
February 202673%33
March 202664%25
April 202684%25
May 202681%26
Departures on time
77%
Diverted
0.8%
Flights flown
359
Months covered
12

Keep nerding

Based on 364 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.