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WanderNerd

Flight Reliability

WN 3335 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3335 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

69%
Arrive within 15 minutes
19 min
Average arrival delay
0.7%
Cancelled
0 min
Median arrival delay

Based on 439 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(81 flights)
  • Tue61%(49 flights)
  • Wed70%(50 flights)
  • Thu64%(87 flights)
  • Fri69%(83 flights)
  • Sat85%(39 flights)
  • Sun64%(47 flights)
On-time by departure window
  • 3–6 AM95%(21 flights)
  • 6–9 AM90%(77 flights)
  • 9 AM–12 PM87%(95 flights)
  • 12–3 PM65%(85 flights)
  • 3–6 PM36%(78 flights)
  • 6–9 PM63%(64 flights)
  • 9 PM–12 AM31%(16 flights)
On-time trend by month
85%
May

Jun 33% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202533%48
July 202535%52
August 202582%51
September 202573%52
October 202586%22
November 202593%27
December 202591%22
April 202668%69
May 202685%87
Departures on time
64%
Diverted
0%
Flights flown
436
Months covered
11

Based on 439 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.