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WanderNerd

Flight Reliability

WN 3336 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3336 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
11 min
Average arrival delay
1.6%
Cancelled
1 min early
Median arrival delay

Based on 379 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(55 flights)
  • Tue98%(49 flights)
  • Wed88%(50 flights)
  • Thu61%(51 flights)
  • Fri62%(58 flights)
  • Sat80%(55 flights)
  • Sun43%(53 flights)
On-time by departure window
  • 6–9 AM97%(64 flights)
  • 9 AM–12 PM93%(53 flights)
  • 12–3 PM78%(73 flights)
  • 3–6 PM61%(61 flights)
  • 6–9 PM56%(96 flights)
  • 9 PM–12 AM50%(24 flights)
On-time trend by month
94%
May

Jun 47% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202547%38
July 202547%34
August 202573%41
September 202585%39
October 202593%29
December 202554%13
January 202676%42
February 202671%34
March 202666%32
April 202693%30
May 202694%31
Departures on time
72%
Diverted
0.5%
Flights flown
371
Months covered
12

Based on 379 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.