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Flight Reliability

WN 3658 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3658 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

80%
Arrive within 15 minutes
4 min
Average arrival delay
1.0%
Cancelled
6 min early
Median arrival delay

Based on 405 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(60 flights)
  • Tue74%(50 flights)
  • Wed85%(48 flights)
  • Thu72%(57 flights)
  • Fri81%(58 flights)
  • Sat82%(71 flights)
  • Sun79%(57 flights)
On-time by departure window
  • 6–9 AM97%(60 flights)
  • 9 AM–12 PM80%(79 flights)
  • 12–3 PM84%(37 flights)
  • 3–6 PM62%(79 flights)
  • 6–9 PM82%(67 flights)
  • 9 PM–12 AM82%(79 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%30
July 202594%31
August 202568%28
September 202577%26
November 202582%39
December 202549%35
January 202679%48
February 202674%53
March 202680%46
April 202691%33
May 202697%31
Departures on time
78%
Diverted
0%
Flights flown
401
Months covered
12

Keep nerding

Based on 405 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.