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Flight Reliability

WN 966 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 966 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

76%
Arrive within 15 minutes
8 min
Average arrival delay
0.8%
Cancelled
2 min early
Median arrival delay

Based on 392 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(58 flights)
  • Tue82%(51 flights)
  • Wed78%(51 flights)
  • Thu69%(58 flights)
  • Fri79%(61 flights)
  • Sat82%(56 flights)
  • Sun70%(53 flights)
On-time by departure window
  • 3–6 AM88%(34 flights)
  • 6–9 AM91%(35 flights)
  • 9 AM–12 PM87%(123 flights)
  • 12–3 PM86%(44 flights)
  • 3–6 PM68%(44 flights)
  • 6–9 PM55%(108 flights)
On-time trend by month
97%
May

Jun 97% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%32
July 202581%32
August 202585%26
September 202586%22
October 202563%30
November 202552%54
December 202562%39
January 202684%32
February 202661%28
March 202690%31
April 202680%30
May 202697%32
Departures on time
75%
Diverted
0.3%
Flights flown
388
Months covered
12

Keep nerding

Based on 392 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.