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WanderNerd

Flight Reliability

WN 2542 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2542 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

79%
Arrive within 15 minutes
6 min
Average arrival delay
1.0%
Cancelled
3 min early
Median arrival delay

Based on 396 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(57 flights)
  • Tue74%(49 flights)
  • Wed90%(50 flights)
  • Thu72%(53 flights)
  • Fri79%(57 flights)
  • Sat72%(65 flights)
  • Sun82%(61 flights)
On-time by departure window
  • 3–6 AM83%(54 flights)
  • 6–9 AM87%(62 flights)
  • 9 AM–12 PM73%(26 flights)
  • 12–3 PM77%(113 flights)
  • 3–6 PM78%(102 flights)
  • 6–9 PM47%(17 flights)
  • 9 PM–12 AM89%(18 flights)
On-time trend by month
90%
May

Jun 46% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202546%22
July 202571%17
August 202584%63
September 202575%68
October 202586%14
November 202590%41
December 202582%33
January 202692%26
February 202688%17
March 202657%30
April 202673%30
May 202690%31
Departures on time
78%
Diverted
0%
Flights flown
392
Months covered
12

Based on 396 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.