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Flight Reliability

WN 4047 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4047 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

84%
Arrive within 15 minutes
1 min
Average arrival delay
1.7%
Cancelled
9 min early
Median arrival delay

Based on 234 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(37 flights)
  • Tue95%(19 flights)
  • Wed88%(17 flights)
  • Thu87%(37 flights)
  • Fri79%(38 flights)
  • Sat97%(32 flights)
  • Sun70%(50 flights)
On-time by departure window
  • 3–6 AM100%(18 flights)
  • 6–9 AM98%(43 flights)
  • 9 AM–12 PM77%(48 flights)
  • 12–3 PM83%(82 flights)
  • 6–9 PM74%(31 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
83%
May

Aug 63% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202563%19
September 202581%21
October 2025100%29
November 202597%29
December 2025100%29
January 202696%22
February 202671%34
March 202680%15
April 202667%12
May 202683%12
Departures on time
81%
Diverted
0%
Flights flown
230
Months covered
12

Keep nerding

Based on 234 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.