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WanderNerd

Flight Reliability

WN 3304 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3304 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

70%
Arrive within 15 minutes
9 min
Average arrival delay
0.8%
Cancelled
3 min early
Median arrival delay

Based on 265 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(45 flights)
  • Tue79%(29 flights)
  • Wed78%(27 flights)
  • Thu49%(41 flights)
  • Fri63%(46 flights)
  • Sat88%(32 flights)
  • Sun68%(41 flights)
On-time by departure window
  • 6–9 AM95%(64 flights)
  • 9 AM–12 PM88%(40 flights)
  • 12–3 PM(8 flights)
  • 3–6 PM57%(51 flights)
  • 6–9 PM45%(53 flights)
  • 9 PM–12 AM62%(45 flights)
On-time trend by month
58%
May

Jun 56% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202556%16
July 202558%12
August 202590%29
September 2025100%30
October 202555%31
November 202583%23
December 202590%19
March 202640%40
April 202673%30
May 202658%26
Departures on time
67%
Diverted
0.8%
Flights flown
261
Months covered
11

Based on 265 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.