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Flight Reliability

WN 1789 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1789 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

75%
Arrive within 15 minutes
12 min
Average arrival delay
0.3%
Cancelled
1 min
Median arrival delay

Based on 293 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(47 flights)
  • Tue67%(33 flights)
  • Wed77%(31 flights)
  • Thu72%(47 flights)
  • Fri76%(50 flights)
  • Sat84%(43 flights)
  • Sun75%(40 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM—(4 flights)
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM85%(53 flights)
  • 3–6 PM76%(126 flights)
  • 6–9 PM63%(81 flights)
  • 9 PM–12 AM82%(17 flights)
On-time trend by month
71%
May

Jun 63% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%30
July 202558%31
August 202584%19
September 202594%17
October 202571%21
November 202574%19
December 202564%14
January 202690%30
February 202668%28
March 202696%23
April 202675%28
May 202671%31
Departures on time
66%
Diverted
0.3%
Flights flown
291
Months covered
12

Keep nerding

Based on 293 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.