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Flight Reliability

WN 1343 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1343 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

74%
Arrive within 15 minutes
8 min
Average arrival delay
1.6%
Cancelled
1 min early
Median arrival delay

Based on 368 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(46 flights)
  • Tue90%(60 flights)
  • Wed78%(59 flights)
  • Thu70%(46 flights)
  • Fri64%(45 flights)
  • Sat90%(38 flights)
  • Sun58%(67 flights)
On-time by departure window
  • 6–9 AM97%(57 flights)
  • 9 AM–12 PM81%(42 flights)
  • 12–3 PM72%(105 flights)
  • 3–6 PM67%(81 flights)
  • 6–9 PM64%(55 flights)
  • 9 PM–12 AM67%(21 flights)
On-time trend by month
83%
May

Jun 65% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%20
July 202542%24
August 202576%37
September 202592%39
October 202581%26
November 202568%19
December 202544%16
January 202677%30
February 202686%28
March 202655%29
April 202683%46
May 202683%47
Departures on time
67%
Diverted
0.3%
Flights flown
361
Months covered
12

Keep nerding

Based on 368 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.