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Flight Reliability

WN 3204 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3204 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

81%
Arrive within 15 minutes
4 min
Average arrival delay
2.9%
Cancelled
4 min early
Median arrival delay

Based on 274 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon89%(36 flights)
  • Tue88%(41 flights)
  • Wed81%(42 flights)
  • Thu87%(31 flights)
  • Fri67%(36 flights)
  • Sat97%(39 flights)
  • Sun62%(39 flights)
On-time by departure window
  • 3–6 AM91%(23 flights)
  • 6–9 AM82%(28 flights)
  • 9 AM–12 PM78%(58 flights)
  • 12–3 PM78%(89 flights)
  • 3–6 PM83%(36 flights)
  • 6–9 PM90%(30 flights)
On-time trend by month
83%
Mar

Jun 91% → Mar 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%35
July 202574%34
August 202587%31
September 202577%30
November 202582%28
December 202576%37
January 2026100%28
February 202670%10
March 202683%18
Departures on time
82%
Diverted
0.7%
Flights flown
264
Months covered
11

Keep nerding

Based on 274 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.