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Flight Reliability

WN 1664 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1664 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

74%
Arrive within 15 minutes
10 min
Average arrival delay
1.4%
Cancelled
5 min early
Median arrival delay

Based on 294 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(43 flights)
  • Tue71%(42 flights)
  • Wed65%(40 flights)
  • Thu79%(42 flights)
  • Fri78%(46 flights)
  • Sat89%(26 flights)
  • Sun71%(51 flights)
On-time by departure window
  • 6–9 AM100%(26 flights)
  • 9 AM–12 PM100%(10 flights)
  • 12–3 PM79%(101 flights)
  • 3–6 PM68%(19 flights)
  • 6–9 PM58%(80 flights)
  • 9 PM–12 AM74%(54 flights)
On-time trend by month
62%
May

Jun 73% → May 62% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%33
July 202572%36
August 202557%28
September 202562%26
October 202587%31
November 202582%17
December 202540%15
January 202693%28
February 202692%25
April 202686%21
May 202662%26
Departures on time
67%
Diverted
0%
Flights flown
290
Months covered
12

Keep nerding

Based on 294 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.