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WanderNerd

Flight Reliability

WN 2548 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2548 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

87%
Arrive within 15 minutes
0 min
Average arrival delay
0.8%
Cancelled
3 min early
Median arrival delay

Based on 354 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(53 flights)
  • Tue95%(43 flights)
  • Wed98%(41 flights)
  • Thu83%(53 flights)
  • Fri86%(56 flights)
  • Sat87%(46 flights)
  • Sun83%(57 flights)
On-time by departure window
  • 3–6 AM87%(31 flights)
  • 6–9 AM92%(169 flights)
  • 9 AM–12 PM78%(46 flights)
  • 12–3 PM78%(74 flights)
  • 3–6 PM85%(27 flights)
  • 6–9 PM(2 flights)
On-time trend by month
97%
May

Jun 91% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%21
July 202586%21
August 202584%31
September 202577%30
October 202587%30
November 202590%38
December 202571%28
January 202693%29
February 202677%30
March 202693%30
April 202693%30
May 202697%31
Departures on time
86%
Diverted
0.6%
Flights flown
349
Months covered
12

Based on 354 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.