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Flight Reliability

WN 1574 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1574 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
0.3%
Cancelled
3 min early
Median arrival delay

Based on 381 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(62 flights)
  • Tue77%(47 flights)
  • Wed87%(47 flights)
  • Thu71%(65 flights)
  • Fri75%(63 flights)
  • Sat80%(39 flights)
  • Sun67%(57 flights)
On-time by departure window
  • 3–6 AM100%(30 flights)
  • 6–9 AM100%(17 flights)
  • 12–3 PM75%(44 flights)
  • 3–6 PM73%(79 flights)
  • 6–9 PM70%(172 flights)
  • 9 PM–12 AM82%(38 flights)
On-time trend by month
100%
May

Jun 83% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%42
July 202558%43
August 202579%33
September 202587%30
October 202567%48
November 202560%30
December 202574%31
January 202690%10
February 202676%29
March 202668%31
April 202696%27
May 2026100%26
Departures on time
71%
Diverted
0%
Flights flown
380
Months covered
12

Keep nerding

Based on 381 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.