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Flight Reliability

WN 1943 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1943 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
5 min
Average arrival delay
1.4%
Cancelled
3 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(49 flights)
  • Tue93%(43 flights)
  • Wed86%(43 flights)
  • Thu63%(51 flights)
  • Fri52%(50 flights)
  • Sat82%(54 flights)
  • Sun86%(66 flights)
On-time by departure window
  • 6–9 AM94%(49 flights)
  • 9 AM–12 PM95%(38 flights)
  • 12–3 PM75%(89 flights)
  • 3–6 PM67%(174 flights)
  • 6–9 PM—(5 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
90%
May

Jun 80% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%45
July 202586%44
August 202559%29
September 202572%25
October 202555%55
November 202578%27
December 202562%29
February 2026100%10
March 202674%27
April 2026100%30
May 202690%31
Departures on time
68%
Diverted
0.3%
Flights flown
356
Months covered
12

Keep nerding

Based on 362 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.