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Flight Reliability

WN 943 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 943 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

84%
Arrive within 15 minutes
2 min
Average arrival delay
0.6%
Cancelled
5 min early
Median arrival delay

Based on 355 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(49 flights)
  • Tue85%(54 flights)
  • Wed70%(54 flights)
  • Thu91%(45 flights)
  • Fri88%(48 flights)
  • Sat85%(47 flights)
  • Sun84%(56 flights)
On-time by departure window
  • 3–6 AM100%(81 flights)
  • 6–9 AM94%(78 flights)
  • 9 AM–12 PM81%(57 flights)
  • 12–3 PM72%(78 flights)
  • 3–6 PM81%(31 flights)
  • 6–9 PM50%(20 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
78%
May

Jun 92% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%37
July 202590%31
August 202597%31
September 202597%29
October 202577%31
November 202597%29
December 202566%29
January 202676%29
February 202683%41
March 202672%29
April 202679%19
May 202678%18
Departures on time
80%
Diverted
0%
Flights flown
353
Months covered
12

Keep nerding

Based on 355 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.