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Flight Reliability

WN 3188 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3188 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

83%
Arrive within 15 minutes
0 min
Average arrival delay
0%
Cancelled
6 min early
Median arrival delay

Based on 280 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(40 flights)
  • Tue90%(41 flights)
  • Wed93%(44 flights)
  • Thu78%(41 flights)
  • Fri83%(41 flights)
  • Sat83%(30 flights)
  • Sun77%(43 flights)
On-time by departure window
  • 6–9 AM89%(35 flights)
  • 9 AM–12 PM83%(126 flights)
  • 12–3 PM78%(69 flights)
  • 9 PM–12 AM86%(50 flights)
On-time trend by month
87%
May

Aug 79% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202579%24
September 202592%26
October 2025100%10
November 202570%37
December 202592%24
January 202689%46
February 202689%27
March 202665%17
April 202678%27
May 202687%31
Departures on time
81%
Diverted
0%
Flights flown
280
Months covered
12

Keep nerding

Based on 280 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.