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WanderNerd

Flight Reliability

WN 3712 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3712 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

79%
Arrive within 15 minutes
5 min
Average arrival delay
0%
Cancelled
5 min early
Median arrival delay

Based on 200 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon67%(30 flights)
  • Tue73%(22 flights)
  • Wed88%(24 flights)
  • Thu77%(34 flights)
  • Fri85%(33 flights)
  • Sat64%(22 flights)
  • Sun94%(34 flights)
On-time by departure window
  • 3–6 AM100%(25 flights)
  • 6–9 AM90%(51 flights)
  • 9 AM–12 PM(9 flights)
  • 12–3 PM71%(72 flights)
  • 3–6 PM(5 flights)
  • 6–9 PM68%(37 flights)
On-time trend by month
71%
May

Aug 100% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 2025100%12
September 2025100%13
October 202570%30
November 202589%27
December 202582%22
March 202674%23
April 202669%29
May 202671%31
Departures on time
75%
Diverted
0.5%
Flights flown
199
Months covered
11

Based on 200 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.