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WanderNerd

Flight Reliability

WN 3354 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3354 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
1 min
Average arrival delay
0.3%
Cancelled
6 min early
Median arrival delay

Based on 368 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon89%(44 flights)
  • Tue85%(47 flights)
  • Wed80%(50 flights)
  • Thu81%(48 flights)
  • Fri87%(46 flights)
  • Sat78%(73 flights)
  • Sun88%(58 flights)
On-time by departure window
  • 3–6 AM100%(30 flights)
  • 6–9 AM92%(90 flights)
  • 9 AM–12 PM82%(108 flights)
  • 12–3 PM91%(21 flights)
  • 3–6 PM63%(32 flights)
  • 6–9 PM75%(56 flights)
  • 9 PM–12 AM79%(29 flights)
On-time trend by month
87%
May

Jun 86% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%29
July 202577%31
August 202576%33
September 202576%33
October 2025100%31
November 202584%25
December 202575%20
February 202680%10
March 202680%15
April 202687%60
May 202687%77
Departures on time
82%
Diverted
0.3%
Flights flown
366
Months covered
12

Based on 368 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.