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Flight Reliability

WN 3488 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3488 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

77%
Arrive within 15 minutes
6 min
Average arrival delay
2.3%
Cancelled
4 min early
Median arrival delay

Based on 344 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(44 flights)
  • Tue93%(56 flights)
  • Wed82%(56 flights)
  • Thu72%(43 flights)
  • Fri68%(41 flights)
  • Sat72%(36 flights)
  • Sun71%(59 flights)
On-time by departure window
  • 6–9 AM74%(54 flights)
  • 9 AM–12 PM88%(43 flights)
  • 12–3 PM80%(46 flights)
  • 3–6 PM68%(19 flights)
  • 6–9 PM75%(153 flights)
  • 9 PM–12 AM70%(20 flights)
On-time trend by month
82%
May

Jun 79% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%28
July 202577%30
August 202581%42
September 202566%41
October 202572%36
November 202588%33
December 202567%45
March 202685%34
April 202682%22
May 202682%17
Departures on time
68%
Diverted
0.3%
Flights flown
335
Months covered
12

Keep nerding

Based on 344 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.