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Flight Reliability

WN 684 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 684 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
7 min
Average arrival delay
0.5%
Cancelled
1 min
Median arrival delay

Based on 407 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(57 flights)
  • Tue82%(60 flights)
  • Wed82%(61 flights)
  • Thu82%(55 flights)
  • Fri64%(53 flights)
  • Sat86%(44 flights)
  • Sun70%(74 flights)
On-time by departure window
  • 6–9 AM95%(73 flights)
  • 9 AM–12 PM94%(36 flights)
  • 12–3 PM67%(144 flights)
  • 3–6 PM82%(62 flights)
  • 6–9 PM70%(54 flights)
  • 9 PM–12 AM60%(35 flights)
On-time trend by month
55%
May

Jun 83% → May 55% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%18
July 202594%18
August 202587%31
September 202582%34
October 202583%35
November 202581%41
December 202567%51
January 202679%33
February 202671%28
March 202697%31
April 202668%40
May 202655%44
Departures on time
71%
Diverted
0.2%
Flights flown
404
Months covered
12

Keep nerding

Based on 407 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.