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WanderNerd

Flight Reliability

WN 3258 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3258 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
7 min
Average arrival delay
1.1%
Cancelled
1 min early
Median arrival delay

Based on 271 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon66%(35 flights)
  • Tue83%(42 flights)
  • Wed71%(44 flights)
  • Thu73%(33 flights)
  • Fri78%(32 flights)
  • Sat83%(30 flights)
  • Sun77%(51 flights)
On-time by departure window
  • 3–6 AM(7 flights)
  • 6–9 AM92%(85 flights)
  • 9 AM–12 PM82%(17 flights)
  • 12–3 PM69%(35 flights)
  • 3–6 PM63%(65 flights)
  • 6–9 PM70%(33 flights)
  • 9 PM–12 AM60%(25 flights)
On-time trend by month
87%
May

Jun 80% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%10
August 202579%19
September 202559%17
October 202597%31
November 202552%44
December 202569%48
January 202675%12
March 202680%20
April 202693%29
May 202687%31
Departures on time
77%
Diverted
0.4%
Flights flown
267
Months covered
12

Based on 271 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.