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Flight Reliability

WN 2843 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2843 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

77%
Arrive within 15 minutes
6 min
Average arrival delay
0.9%
Cancelled
3 min early
Median arrival delay

Based on 340 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(49 flights)
  • Tue73%(52 flights)
  • Wed67%(48 flights)
  • Thu80%(44 flights)
  • Fri75%(44 flights)
  • Sat88%(49 flights)
  • Sun84%(51 flights)
On-time by departure window
  • 3–6 AM—(4 flights)
  • 6–9 AM86%(128 flights)
  • 9 AM–12 PM82%(68 flights)
  • 12–3 PM79%(65 flights)
  • 3–6 PM64%(14 flights)
  • 6–9 PM60%(42 flights)
  • 9 PM–12 AM38%(16 flights)
On-time trend by month
50%
May

Jun 87% → May 50% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202558%31
August 202587%31
September 202587%30
October 202587%31
November 202572%18
December 202581%36
January 202692%37
February 202672%25
March 202658%12
April 202681%26
May 202650%30
Departures on time
75%
Diverted
0%
Flights flown
337
Months covered
12

Keep nerding

Based on 340 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.