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WanderNerd

Flight Reliability

WN 3706 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3706 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

73%
Arrive within 15 minutes
11 min
Average arrival delay
0.4%
Cancelled
1 min
Median arrival delay

Based on 282 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon65%(34 flights)
  • Tue84%(44 flights)
  • Wed80%(44 flights)
  • Thu47%(32 flights)
  • Fri60%(35 flights)
  • Sat77%(31 flights)
  • Sun82%(60 flights)
On-time by departure window
  • 6–9 AM(2 flights)
  • 9 AM–12 PM56%(54 flights)
  • 12–3 PM82%(81 flights)
  • 3–6 PM83%(52 flights)
  • 6–9 PM68%(91 flights)
On-time trend by month
65%
May

Aug 70% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202570%27
September 202590%29
October 202550%10
November 202575%28
December 202571%31
January 202659%27
February 202682%27
April 202676%41
May 202665%52
Departures on time
69%
Diverted
0.4%
Flights flown
280
Months covered
12

Based on 282 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.