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Flight Reliability

WN 1647 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1647 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

81%
Arrive within 15 minutes
5 min
Average arrival delay
0.8%
Cancelled
4 min early
Median arrival delay

Based on 492 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(73 flights)
  • Tue89%(79 flights)
  • Wed87%(84 flights)
  • Thu80%(76 flights)
  • Fri82%(65 flights)
  • Sat66%(65 flights)
  • Sun77%(44 flights)
On-time by departure window
  • 3–6 AM100%(33 flights)
  • 6–9 AM80%(55 flights)
  • 9 AM–12 PM86%(84 flights)
  • 12–3 PM80%(78 flights)
  • 3–6 PM81%(191 flights)
  • 6–9 PM64%(45 flights)
On-time trend by month
66%
May

Jun 76% → May 66% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%29
July 202567%30
August 202590%57
September 202590%61
October 202582%33
November 202588%50
December 202573%51
January 202691%33
February 202675%28
March 2026100%31
April 202669%39
May 202666%44
Departures on time
74%
Diverted
0.4%
Flights flown
486
Months covered
12

Keep nerding

Based on 492 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.