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Flight Reliability

WN 615 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 615 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
5 min
Average arrival delay
1.6%
Cancelled
5 min early
Median arrival delay

Based on 311 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(40 flights)
  • Tue87%(39 flights)
  • Wed78%(40 flights)
  • Thu85%(40 flights)
  • Fri79%(38 flights)
  • Sat81%(59 flights)
  • Sun65%(48 flights)
On-time by departure window
  • 3–6 AM91%(23 flights)
  • 6–9 AM93%(85 flights)
  • 9 AM–12 PM95%(37 flights)
  • 12–3 PM—(1 flights)
  • 3–6 PM84%(61 flights)
  • 6–9 PM56%(90 flights)
  • 9 PM–12 AM—(7 flights)
On-time trend by month
39%
May

Jun 74% → May 39% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%19
July 202553%15
August 202594%33
September 202591%34
October 202592%24
November 202568%31
December 202590%31
January 202679%29
February 202682%28
March 202683%18
April 202674%19
May 202639%23
Departures on time
73%
Diverted
0.6%
Flights flown
304
Months covered
12

Keep nerding

Based on 311 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.