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Flight Reliability

WN 1889 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1889 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

61%
Arrive within 15 minutes
20 min
Average arrival delay
1.6%
Cancelled
4 min
Median arrival delay

Based on 309 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon65%(51 flights)
  • Tue71%(35 flights)
  • Wed76%(33 flights)
  • Thu43%(51 flights)
  • Fri52%(50 flights)
  • Sat67%(42 flights)
  • Sun64%(42 flights)
On-time by departure window
  • 6–9 AM82%(39 flights)
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM95%(19 flights)
  • 3–6 PM67%(132 flights)
  • 6–9 PM39%(71 flights)
  • 9 PM–12 AM32%(34 flights)
On-time trend by month
23%
May

Jun 50% → May 23% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%22
July 202540%25
August 202578%18
September 202577%17
October 202587%30
November 202579%28
December 202568%31
January 202678%18
February 202673%26
March 202662%29
April 202638%29
May 202623%31
Departures on time
56%
Diverted
0%
Flights flown
304
Months covered
12

Keep nerding

Based on 309 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.