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Flight Reliability

WN 2431 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2431 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
7 min
Average arrival delay
1.0%
Cancelled
1 min early
Median arrival delay

Based on 385 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon60%(53 flights)
  • Tue91%(42 flights)
  • Wed84%(43 flights)
  • Thu62%(53 flights)
  • Fri72%(50 flights)
  • Sat77%(68 flights)
  • Sun81%(72 flights)
On-time by departure window
  • 3–6 AM96%(27 flights)
  • 6–9 AM93%(56 flights)
  • 9 AM–12 PM90%(60 flights)
  • 12–3 PM87%(53 flights)
  • 3–6 PM68%(31 flights)
  • 6–9 PM57%(147 flights)
  • 9 PM–12 AM—(7 flights)
On-time trend by month
83%
May

Jun 50% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%52
July 202559%56
August 202575%24
September 202577%17
October 202587%46
November 202582%28
December 202568%28
January 202687%30
February 202676%25
March 202697%30
April 202691%22
May 202683%23
Departures on time
74%
Diverted
0%
Flights flown
381
Months covered
12

Keep nerding

Based on 385 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.