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WanderNerd

Flight Reliability

WN 3679 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3679 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

65%
Arrive within 15 minutes
22 min
Average arrival delay
1.5%
Cancelled
3 min
Median arrival delay

Based on 198 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(27 flights)
  • Tue67%(33 flights)
  • Wed71%(34 flights)
  • Thu74%(27 flights)
  • Fri59%(27 flights)
  • Sat52%(23 flights)
  • Sun48%(23 flights)
On-time by departure window
  • 6–9 AM76%(45 flights)
  • 9 AM–12 PM75%(28 flights)
  • 12–3 PM67%(45 flights)
  • 3–6 PM(7 flights)
  • 6–9 PM56%(64 flights)
  • 9 PM–12 AM(5 flights)
On-time trend by month
100%
Mar

Jun 42% → Mar 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202542%33
July 202560%40
October 202568%38
November 202581%26
December 202568%31
March 2026100%14
Departures on time
59%
Diverted
0.5%
Flights flown
194
Months covered
10

Based on 198 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.