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WanderNerd

Flight Reliability

WN 3916 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3916 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
6 min
Average arrival delay
0.4%
Cancelled
3 min early
Median arrival delay

Based on 252 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(32 flights)
  • Tue75%(47 flights)
  • Wed66%(50 flights)
  • Thu74%(34 flights)
  • Fri81%(32 flights)
  • Sat88%(17 flights)
  • Sun72%(39 flights)
On-time by departure window
  • 3–6 AM(7 flights)
  • 6–9 AM85%(73 flights)
  • 9 AM–12 PM40%(20 flights)
  • 12–3 PM76%(75 flights)
  • 3–6 PM74%(58 flights)
  • 6–9 PM71%(17 flights)
  • 9 PM–12 AM(1 flights)
On-time trend by month
75%
May

Aug 83% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202583%24
September 202585%26
October 202572%18
November 202596%23
December 202576%21
March 202651%37
April 202677%48
May 202675%48
Departures on time
77%
Diverted
0%
Flights flown
251
Months covered
10

Based on 252 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.