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WanderNerd

Flight Reliability

WN 505 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 505 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

73%
Arrive within 15 minutes
15 min
Average arrival delay
1.2%
Cancelled
1 min early
Median arrival delay

Based on 421 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon64%(73 flights)
  • Tue80%(56 flights)
  • Wed83%(60 flights)
  • Thu69%(75 flights)
  • Fri65%(72 flights)
  • Sat74%(34 flights)
  • Sun78%(45 flights)
On-time by departure window
  • 3–6 AM91%(11 flights)
  • 6–9 AM93%(44 flights)
  • 9 AM–12 PM83%(112 flights)
  • 12–3 PM69%(134 flights)
  • 3–6 PM52%(64 flights)
  • 6–9 PM62%(50 flights)
On-time trend by month
76%
May

Jun 46% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202546%26
July 202550%24
August 202562%37
September 202567%39
October 202588%25
November 202592%38
December 202584%45
January 202690%30
February 202693%28
March 202658%24
April 202657%46
May 202676%53
Departures on time
69%
Diverted
0.2%
Flights flown
415
Months covered
12

Based on 421 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.