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Flight Reliability

WN 574 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 574 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

75%
Arrive within 15 minutes
10 min
Average arrival delay
1.9%
Cancelled
3 min early
Median arrival delay

Based on 424 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(58 flights)
  • Tue75%(72 flights)
  • Wed82%(71 flights)
  • Thu74%(61 flights)
  • Fri72%(60 flights)
  • Sat83%(35 flights)
  • Sun71%(58 flights)
On-time by departure window
  • 3–6 AM84%(25 flights)
  • 6–9 AM86%(21 flights)
  • 9 AM–12 PM77%(167 flights)
  • 12–3 PM75%(110 flights)
  • 3–6 PM70%(37 flights)
  • 6–9 PM64%(55 flights)
On-time trend by month
63%
May

Jun 66% → May 63% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202566%35
July 202581%47
August 202573%30
September 202577%30
October 202560%40
November 202575%28
December 202590%31
January 202682%28
February 202672%25
March 202680%61
April 202676%33
May 202663%27
Departures on time
71%
Diverted
0.2%
Flights flown
415
Months covered
12

Keep nerding

Based on 424 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.