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WanderNerd

Flight Reliability

WN 4161 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4161 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

93%
Arrive within 15 minutes
8 min early
Average arrival delay
1.2%
Cancelled
13 min early
Median arrival delay

Based on 173 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon93%(28 flights)
  • Tue95%(20 flights)
  • Wed95%(21 flights)
  • Thu89%(27 flights)
  • Fri100%(24 flights)
  • Sat100%(21 flights)
  • Sun83%(29 flights)
On-time by departure window
  • 3–6 AM97%(60 flights)
  • 6–9 AM96%(51 flights)
  • 3–6 PM(1 flights)
  • 6–9 PM79%(28 flights)
  • 9 PM–12 AM93%(30 flights)
On-time trend by month
89%
Mar

Jun 97% → Mar 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%33
July 202593%30
November 202596%26
December 2025100%22
February 202673%15
March 202689%27
Departures on time
94%
Diverted
0.6%
Flights flown
170
Months covered
9

Based on 173 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.