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Flight Reliability

WN 3186 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3186 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
10 min
Average arrival delay
1.9%
Cancelled
2 min early
Median arrival delay

Based on 259 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(38 flights)
  • Tue88%(42 flights)
  • Wed77%(43 flights)
  • Thu66%(38 flights)
  • Fri74%(34 flights)
  • Sat86%(28 flights)
  • Sun71%(31 flights)
On-time by departure window
  • 3–6 AM—(9 flights)
  • 6–9 AM78%(27 flights)
  • 9 AM–12 PM93%(28 flights)
  • 12–3 PM79%(81 flights)
  • 3–6 PM53%(34 flights)
  • 6–9 PM72%(75 flights)
On-time trend by month
71%
May

Jun 73% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202563%30
August 202567%12
October 202564%14
November 202596%22
December 202585%20
January 202677%31
February 202676%25
April 202679%24
May 202671%31
Departures on time
71%
Diverted
0%
Flights flown
254
Months covered
12

Keep nerding

Based on 259 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.