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Flight Reliability

WN 979 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 979 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

84%
Arrive within 15 minutes
2 min
Average arrival delay
1.0%
Cancelled
8 min early
Median arrival delay

Based on 389 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(70 flights)
  • Tue86%(56 flights)
  • Wed91%(55 flights)
  • Thu84%(68 flights)
  • Fri81%(69 flights)
  • Sat87%(23 flights)
  • Sun74%(43 flights)
On-time by departure window
  • 3–6 AM100%(13 flights)
  • 6–9 AM96%(124 flights)
  • 9 AM–12 PM96%(46 flights)
  • 12–3 PM87%(71 flights)
  • 3–6 PM64%(53 flights)
  • 6–9 PM65%(77 flights)
On-time trend by month
100%
May

Jun 81% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%48
July 202578%46
August 202577%30
September 202564%25
October 202597%36
November 202577%26
December 202562%29
January 202697%31
February 202684%25
March 202697%29
April 202690%29
May 2026100%30
Departures on time
81%
Diverted
0.3%
Flights flown
384
Months covered
12

Keep nerding

Based on 389 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.