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WanderNerd

Flight Reliability

WN 3541 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3541 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

72%
Arrive within 15 minutes
11 min
Average arrival delay
0%
Cancelled
3 min
Median arrival delay

Based on 325 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon65%(51 flights)
  • Tue88%(34 flights)
  • Wed77%(31 flights)
  • Thu67%(49 flights)
  • Fri77%(52 flights)
  • Sat73%(44 flights)
  • Sun64%(64 flights)
On-time by departure window
  • 3–6 AM80%(25 flights)
  • 6–9 AM89%(46 flights)
  • 9 AM–12 PM82%(98 flights)
  • 12–3 PM(5 flights)
  • 3–6 PM59%(120 flights)
  • 6–9 PM59%(27 flights)
  • 9 PM–12 AM(4 flights)
On-time trend by month
58%
May

Jun 78% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%32
July 202577%30
August 202593%27
September 202592%26
October 202541%39
November 202577%17
December 202573%15
January 202683%12
March 202681%21
April 202669%45
May 202658%52
Departures on time
68%
Diverted
0%
Flights flown
325
Months covered
12

Based on 325 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.