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WanderNerd

Flight Reliability

WN 2331 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2331 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

84%
Arrive within 15 minutes
2 min
Average arrival delay
1.2%
Cancelled
5 min early
Median arrival delay

Based on 328 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(46 flights)
  • Tue87%(45 flights)
  • Wed85%(48 flights)
  • Thu65%(48 flights)
  • Fri86%(44 flights)
  • Sat84%(43 flights)
  • Sun92%(50 flights)
On-time by departure window
  • 3–6 AM(5 flights)
  • 6–9 AM96%(67 flights)
  • 9 AM–12 PM84%(61 flights)
  • 12–3 PM85%(78 flights)
  • 3–6 PM78%(83 flights)
  • 6–9 PM70%(30 flights)
On-time trend by month
81%
May

Jun 75% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202575%20
July 202585%20
August 202579%29
September 202583%30
October 202587%31
November 202590%38
December 202580%45
January 202682%27
February 2026100%20
April 202680%25
May 202681%32
Departures on time
78%
Diverted
0%
Flights flown
324
Months covered
12

Based on 328 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.