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Flight Reliability

WN 2537 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2537 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

65%
Arrive within 15 minutes
18 min
Average arrival delay
1.0%
Cancelled
5 min
Median arrival delay

Based on 412 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon62%(69 flights)
  • Tue83%(46 flights)
  • Wed80%(46 flights)
  • Thu52%(67 flights)
  • Fri59%(69 flights)
  • Sat70%(47 flights)
  • Sun60%(63 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM84%(25 flights)
  • 9 AM–12 PM83%(60 flights)
  • 12–3 PM63%(76 flights)
  • 3–6 PM63%(147 flights)
  • 6–9 PM54%(97 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
66%
May

Jun 63% → May 66% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%51
July 202561%54
August 202554%35
September 202567%30
October 202577%26
November 202572%39
December 202566%35
January 202655%11
February 202650%14
March 202650%22
April 202681%43
May 202666%47
Departures on time
63%
Diverted
0.2%
Flights flown
407
Months covered
12

Keep nerding

Based on 412 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.