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Flight Reliability

WN 3259 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3259 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

73%
Arrive within 15 minutes
11 min
Average arrival delay
1.1%
Cancelled
0 min
Median arrival delay

Based on 348 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(60 flights)
  • Tue77%(47 flights)
  • Wed84%(44 flights)
  • Thu55%(56 flights)
  • Fri64%(56 flights)
  • Sat97%(29 flights)
  • Sun73%(51 flights)
On-time by departure window
  • 3–6 AM85%(13 flights)
  • 6–9 AM97%(34 flights)
  • 9 AM–12 PM69%(26 flights)
  • 12–3 PM84%(82 flights)
  • 3–6 PM63%(130 flights)
  • 6–9 PM55%(42 flights)
  • 9 PM–12 AM81%(16 flights)
On-time trend by month
100%
Apr

Jun 67% → Apr 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%45
July 202553%49
August 202574%38
September 202561%38
October 202568%31
November 202579%19
December 202569%16
January 202689%36
February 202689%26
March 202685%34
April 2026100%10
Departures on time
68%
Diverted
0.3%
Flights flown
343
Months covered
12

Keep nerding

Based on 348 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.