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Flight Reliability

WN 2573 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2573 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

89%
Arrive within 15 minutes
0 min
Average arrival delay
1.1%
Cancelled
8 min early
Median arrival delay

Based on 280 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(40 flights)
  • Tue96%(47 flights)
  • Wed86%(43 flights)
  • Thu87%(31 flights)
  • Fri94%(35 flights)
  • Sat85%(39 flights)
  • Sun88%(41 flights)
On-time by departure window
  • 3–6 AM97%(38 flights)
  • 6–9 AM93%(130 flights)
  • 9 AM–12 PM85%(40 flights)
  • 12–3 PM—(5 flights)
  • 3–6 PM81%(41 flights)
  • 6–9 PM57%(14 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
97%
May

Jun 81% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%21
July 202569%16
August 202593%29
September 202593%30
October 202570%23
November 202591%22
December 202587%30
January 202693%28
February 202689%18
April 2026100%24
May 202697%31
Departures on time
83%
Diverted
0.4%
Flights flown
276
Months covered
12

Keep nerding

Based on 280 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.