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WanderNerd

Flight Reliability

WN 4605 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4605 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

64%
Arrive within 15 minutes
18 min
Average arrival delay
0.7%
Cancelled
1 min
Median arrival delay

Based on 144 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon67%(21 flights)
  • Tue63%(16 flights)
  • Wed44%(16 flights)
  • Thu55%(20 flights)
  • Fri80%(20 flights)
  • Sat68%(31 flights)
  • Sun63%(19 flights)
On-time by departure window
  • 12–3 PM82%(27 flights)
  • 3–6 PM(8 flights)
  • 6–9 PM57%(107 flights)
  • 9 PM–12 AM(1 flights)
On-time trend by month
61%
May

Jun 52% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202552%27
July 202552%29
March 202691%11
April 202690%30
May 202661%36
Departures on time
59%
Diverted
0%
Flights flown
143
Months covered
9

Based on 144 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.