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Flight Reliability

WN 3505 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3505 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

84%
Arrive within 15 minutes
3 min
Average arrival delay
0.7%
Cancelled
7 min early
Median arrival delay

Based on 307 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(44 flights)
  • Tue87%(39 flights)
  • Wed82%(38 flights)
  • Thu83%(46 flights)
  • Fri92%(48 flights)
  • Sat73%(30 flights)
  • Sun86%(59 flights)
On-time by departure window
  • 6–9 AM94%(36 flights)
  • 9 AM–12 PM91%(66 flights)
  • 12–3 PM82%(62 flights)
  • 3–6 PM80%(50 flights)
  • 6–9 PM81%(82 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
80%
May

Jun 100% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%18
July 202588%16
October 202587%23
November 202578%32
December 202581%31
January 202698%49
February 202668%37
March 202693%29
April 202676%29
May 202680%30
Departures on time
81%
Diverted
0.3%
Flights flown
304
Months covered
12

Keep nerding

Based on 307 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.