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Flight Reliability

WN 3243 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3243 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

83%
Arrive within 15 minutes
3 min
Average arrival delay
2.2%
Cancelled
5 min early
Median arrival delay

Based on 368 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(50 flights)
  • Tue85%(60 flights)
  • Wed84%(62 flights)
  • Thu93%(54 flights)
  • Fri84%(56 flights)
  • Sat83%(29 flights)
  • Sun75%(48 flights)
On-time by departure window
  • 6–9 AM88%(130 flights)
  • 9 AM–12 PM85%(80 flights)
  • 12–3 PM76%(74 flights)
  • 3–6 PM66%(44 flights)
  • 6–9 PM94%(31 flights)
On-time trend by month
80%
May

Aug 96% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202596%23
September 202592%26
October 202585%27
November 202569%49
December 202580%30
January 202693%14
February 202694%17
March 202686%56
April 202677%60
May 202680%55
Departures on time
76%
Diverted
0.3%
Flights flown
359
Months covered
11

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.