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Flight Reliability

WN 3447 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3447 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

72%
Arrive within 15 minutes
13 min
Average arrival delay
0.3%
Cancelled
2 min early
Median arrival delay

Based on 369 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(51 flights)
  • Tue68%(47 flights)
  • Wed68%(47 flights)
  • Thu84%(51 flights)
  • Fri64%(56 flights)
  • Sat67%(58 flights)
  • Sun78%(58 flights)
On-time by departure window
  • 3–6 AM—(4 flights)
  • 6–9 AM83%(77 flights)
  • 9 AM–12 PM75%(80 flights)
  • 12–3 PM66%(109 flights)
  • 3–6 PM64%(89 flights)
  • 6–9 PM—(9 flights)
On-time trend by month
70%
May

Jun 68% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%31
July 202565%26
August 202573%30
September 202583%30
October 202574%35
November 202572%54
December 202581%41
February 202669%13
March 202649%39
April 202681%32
May 202670%30
Departures on time
68%
Diverted
0%
Flights flown
368
Months covered
12

Keep nerding

Based on 369 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.