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Flight Reliability

WN 4488 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4488 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
0 min
Average arrival delay
1.0%
Cancelled
10 min early
Median arrival delay

Based on 193 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(28 flights)
  • Tue92%(24 flights)
  • Wed96%(22 flights)
  • Thu68%(25 flights)
  • Fri86%(28 flights)
  • Sat83%(23 flights)
  • Sun73%(41 flights)
On-time by departure window
  • 12–3 PM66%(35 flights)
  • 6–9 PM84%(119 flights)
  • 9 PM–12 AM84%(37 flights)
On-time trend by month
93%
Mar

Jun 86% → Mar 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%28
July 202587%31
November 202553%17
December 202569%13
January 202687%30
February 202675%28
March 202693%27
Departures on time
75%
Diverted
0%
Flights flown
191
Months covered
10

Keep nerding

Based on 193 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.