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Flight Reliability

WN 1615 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1615 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

60%
Arrive within 15 minutes
19 min
Average arrival delay
2.2%
Cancelled
7 min
Median arrival delay

Based on 316 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon67%(42 flights)
  • Tue64%(44 flights)
  • Wed63%(46 flights)
  • Thu59%(46 flights)
  • Fri68%(40 flights)
  • Sat50%(42 flights)
  • Sun51%(49 flights)
On-time by departure window
  • 6–9 AM—(6 flights)
  • 9 AM–12 PM76%(71 flights)
  • 12–3 PM52%(54 flights)
  • 3–6 PM58%(85 flights)
  • 6–9 PM53%(92 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
34%
May

Jun 63% → May 34% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%30
July 202545%31
August 202573%33
September 202563%30
October 202577%39
November 2025100%14
December 202575%16
February 202674%19
March 202626%27
April 202650%30
May 202634%32
Departures on time
57%
Diverted
0%
Flights flown
309
Months covered
12

Keep nerding

Based on 316 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.