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WanderNerd

Flight Reliability

WN 4595 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4595 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
6 min
Average arrival delay
0%
Cancelled
6 min early
Median arrival delay

Based on 178 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(22 flights)
  • Tue79%(28 flights)
  • Wed77%(30 flights)
  • Thu78%(23 flights)
  • Fri77%(22 flights)
  • Sat77%(31 flights)
  • Sun91%(22 flights)
On-time by departure window
  • 6–9 AM98%(41 flights)
  • 9 AM–12 PM79%(109 flights)
  • 3–6 PM(9 flights)
  • 6–9 PM61%(18 flights)
  • 9 PM–12 AM(1 flights)
On-time trend by month
79%
Apr

Nov 58% → Apr 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202558%26
December 202582%22
January 202676%29
February 202697%35
March 202697%32
April 202679%14
Departures on time
83%
Diverted
0%
Flights flown
178
Months covered
10

Based on 178 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.