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Flight Reliability

WN 1189 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1189 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

77%
Arrive within 15 minutes
6 min
Average arrival delay
0.8%
Cancelled
2 min early
Median arrival delay

Based on 380 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(63 flights)
  • Tue80%(54 flights)
  • Wed83%(53 flights)
  • Thu82%(61 flights)
  • Fri68%(60 flights)
  • Sat78%(36 flights)
  • Sun71%(49 flights)
On-time by departure window
  • 3–6 AM94%(51 flights)
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM82%(99 flights)
  • 12–3 PM76%(152 flights)
  • 3–6 PM64%(73 flights)
On-time trend by month
82%
May

Jun 65% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%34
July 202563%30
August 202590%31
September 202593%30
October 202555%31
November 202562%26
December 202586%29
January 202685%33
February 202682%39
March 202684%44
April 202678%27
May 202682%22
Departures on time
74%
Diverted
0.3%
Flights flown
376
Months covered
12

Keep nerding

Based on 380 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.