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WanderNerd

Flight Reliability

WN 3980 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3980 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

57%
Arrive within 15 minutes
26 min
Average arrival delay
0.9%
Cancelled
10 min
Median arrival delay

Based on 214 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon57%(28 flights)
  • Tue54%(28 flights)
  • Wed54%(28 flights)
  • Thu50%(26 flights)
  • Fri54%(26 flights)
  • Sat63%(27 flights)
  • Sun61%(49 flights)
On-time by departure window
  • 3–6 AM(1 flights)
  • 6–9 AM(2 flights)
  • 9 AM–12 PM79%(14 flights)
  • 12–3 PM62%(79 flights)
  • 3–6 PM45%(29 flights)
  • 6–9 PM53%(78 flights)
  • 9 PM–12 AM(9 flights)
On-time trend by month
50%
Apr

Jun 32% → Apr 50% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202532%31
July 202538%29
October 202574%38
January 202673%26
February 202668%28
March 202649%35
April 202650%10
Departures on time
51%
Diverted
0%
Flights flown
212
Months covered
10

Based on 214 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.