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Flight Reliability

WN 1252 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1252 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

76%
Arrive within 15 minutes
8 min
Average arrival delay
0%
Cancelled
3 min early
Median arrival delay

Based on 396 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(48 flights)
  • Tue80%(60 flights)
  • Wed83%(60 flights)
  • Thu79%(48 flights)
  • Fri77%(51 flights)
  • Sat80%(54 flights)
  • Sun54%(74 flights)
On-time by departure window
  • 3–6 AM96%(24 flights)
  • 6–9 AM89%(64 flights)
  • 9 AM–12 PM81%(139 flights)
  • 12–3 PM69%(58 flights)
  • 3–6 PM62%(93 flights)
  • 6–9 PM59%(17 flights)
On-time trend by month
74%
May

Jun 59% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%27
July 202565%26
August 202573%30
September 202583%30
October 202573%33
November 202553%30
December 202565%31
January 202690%52
February 202693%41
March 202679%34
April 202683%30
May 202674%31
Departures on time
72%
Diverted
0.3%
Flights flown
395
Months covered
12

Keep nerding

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.