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WanderNerd

Flight Reliability

WN 955 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 955 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

68%
Arrive within 15 minutes
15 min
Average arrival delay
1.2%
Cancelled
0 min
Median arrival delay

Based on 243 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon48%(23 flights)
  • Tue80%(44 flights)
  • Wed96%(45 flights)
  • Thu59%(22 flights)
  • Fri67%(21 flights)
  • Sat62%(34 flights)
  • Sun52%(50 flights)
On-time by departure window
  • 3–6 AM(1 flights)
  • 6–9 AM100%(30 flights)
  • 9 AM–12 PM(2 flights)
  • 12–3 PM81%(59 flights)
  • 3–6 PM73%(52 flights)
  • 6–9 PM46%(81 flights)
  • 9 PM–12 AM50%(14 flights)
On-time trend by month
60%
May

Jun 73% → May 60% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%15
July 202564%14
August 202582%17
September 2025100%17
October 202556%27
November 202545%29
December 202547%30
January 202692%25
February 202678%27
March 202668%19
May 202660%10
Departures on time
67%
Diverted
0.4%
Flights flown
239
Months covered
12

Based on 243 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.