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WanderNerd

Flight Reliability

WN 4044 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4044 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

75%
Arrive within 15 minutes
11 min
Average arrival delay
0.8%
Cancelled
1 min early
Median arrival delay

Based on 246 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(35 flights)
  • Tue73%(30 flights)
  • Wed79%(33 flights)
  • Thu72%(39 flights)
  • Fri65%(40 flights)
  • Sat82%(28 flights)
  • Sun77%(39 flights)
On-time by departure window
  • 6–9 AM84%(62 flights)
  • 9 AM–12 PM82%(55 flights)
  • 12–3 PM69%(61 flights)
  • 3–6 PM70%(54 flights)
  • 6–9 PM58%(12 flights)
On-time trend by month
87%
May

Aug 69% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202569%26
September 202573%30
October 2025100%30
November 202584%38
December 202583%24
February 202655%11
March 202635%23
April 202669%29
May 202687%30
Departures on time
76%
Diverted
0%
Flights flown
244
Months covered
10

Based on 246 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.