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Flight Reliability

WN 1575 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1575 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
7 min
Average arrival delay
1.3%
Cancelled
0 min
Median arrival delay

Based on 465 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(77 flights)
  • Tue80%(59 flights)
  • Wed96%(52 flights)
  • Thu74%(73 flights)
  • Fri72%(86 flights)
  • Sat77%(47 flights)
  • Sun73%(63 flights)
On-time by departure window
  • 3–6 AM93%(53 flights)
  • 6–9 AM97%(34 flights)
  • 9 AM–12 PM84%(79 flights)
  • 12–3 PM83%(65 flights)
  • 3–6 PM67%(70 flights)
  • 6–9 PM63%(111 flights)
  • 9 PM–12 AM64%(45 flights)
On-time trend by month
94%
May

Jun 94% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%36
July 202583%41
August 202578%32
September 202593%30
October 202568%41
November 202567%70
December 202560%68
January 202671%35
February 202695%20
March 202656%25
April 202686%28
May 202694%31
Departures on time
67%
Diverted
0.4%
Flights flown
457
Months covered
12

Keep nerding

Based on 465 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.