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Flight Reliability

WN 2538 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2538 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

80%
Arrive within 15 minutes
6 min
Average arrival delay
1.6%
Cancelled
2 min early
Median arrival delay

Based on 375 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(56 flights)
  • Tue85%(53 flights)
  • Wed84%(50 flights)
  • Thu80%(50 flights)
  • Fri63%(54 flights)
  • Sat90%(57 flights)
  • Sun75%(48 flights)
On-time by departure window
  • 6–9 AM89%(66 flights)
  • 9 AM–12 PM91%(57 flights)
  • 12–3 PM81%(102 flights)
  • 3–6 PM71%(55 flights)
  • 6–9 PM72%(88 flights)
On-time trend by month
83%
May

Jun 89% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%27
July 202587%30
August 202553%30
September 202583%30
October 2025100%28
November 202567%36
December 202567%51
January 202686%36
February 202695%19
March 202696%22
April 202683%29
May 202683%30
Departures on time
74%
Diverted
0.3%
Flights flown
368
Months covered
12

Keep nerding

Based on 375 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.