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WanderNerd

Flight Reliability

WN 2309 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2309 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

67%
Arrive within 15 minutes
18 min
Average arrival delay
1.0%
Cancelled
1 min
Median arrival delay

Based on 306 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(47 flights)
  • Tue78%(32 flights)
  • Wed86%(28 flights)
  • Thu64%(42 flights)
  • Fri59%(49 flights)
  • Sat70%(50 flights)
  • Sun57%(53 flights)
On-time by departure window
  • 6–9 AM(2 flights)
  • 9 AM–12 PM(5 flights)
  • 12–3 PM70%(64 flights)
  • 3–6 PM47%(79 flights)
  • 6–9 PM66%(61 flights)
  • 9 PM–12 AM82%(90 flights)
On-time trend by month
68%
Mar

Jun 36% → Mar 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202536%22
July 202532%19
August 202581%31
September 202597%30
October 202571%31
November 202562%45
December 202568%41
January 202677%13
February 202678%18
March 202668%41
Departures on time
59%
Diverted
0.7%
Flights flown
301
Months covered
12

Based on 306 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.