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Flight Reliability

WN 189 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 189 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

76%
Arrive within 15 minutes
10 min
Average arrival delay
0.9%
Cancelled
2 min early
Median arrival delay

Based on 448 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(58 flights)
  • Tue81%(67 flights)
  • Wed69%(67 flights)
  • Thu69%(61 flights)
  • Fri79%(61 flights)
  • Sat85%(59 flights)
  • Sun70%(70 flights)
On-time by departure window
  • 3–6 AM95%(19 flights)
  • 6–9 AM97%(64 flights)
  • 9 AM–12 PM97%(71 flights)
  • 12–3 PM76%(89 flights)
  • 3–6 PM59%(93 flights)
  • 6–9 PM58%(99 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
100%
May

Jun 59% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%64
July 202555%77
August 202587%30
September 202584%25
October 202566%35
November 2025100%28
December 202597%30
January 202690%31
February 202679%28
March 202658%33
April 202690%31
May 2026100%31
Departures on time
72%
Diverted
0.2%
Flights flown
443
Months covered
12

Keep nerding

Based on 448 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.