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Flight Reliability

WN 3930 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3930 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

78%
Arrive within 15 minutes
8 min
Average arrival delay
1.7%
Cancelled
0 min
Median arrival delay

Based on 343 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(51 flights)
  • Tue84%(38 flights)
  • Wed95%(41 flights)
  • Thu82%(54 flights)
  • Fri77%(51 flights)
  • Sat81%(48 flights)
  • Sun57%(54 flights)
On-time by departure window
  • 6–9 AM97%(64 flights)
  • 9 AM–12 PM87%(71 flights)
  • 12–3 PM84%(43 flights)
  • 3–6 PM70%(132 flights)
  • 6–9 PM41%(27 flights)
On-time trend by month
72%
May

Jun 94% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%36
July 2025100%40
August 202591%32
September 202582%34
October 202583%29
November 202567%36
December 202592%24
March 202636%25
April 202656%36
May 202672%39
Departures on time
74%
Diverted
0%
Flights flown
337
Months covered
12

Keep nerding

Based on 343 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.