Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 1981 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1981 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

72%
Arrive within 15 minutes
11 min
Average arrival delay
0.6%
Cancelled
0 min
Median arrival delay

Based on 357 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(56 flights)
  • Tue82%(38 flights)
  • Wed83%(36 flights)
  • Thu73%(55 flights)
  • Fri73%(56 flights)
  • Sat65%(52 flights)
  • Sun57%(62 flights)
On-time by departure window
  • 3–6 AM—(8 flights)
  • 6–9 AM81%(80 flights)
  • 9 AM–12 PM90%(86 flights)
  • 12–3 PM74%(49 flights)
  • 3–6 PM48%(62 flights)
  • 6–9 PM56%(36 flights)
  • 9 PM–12 AM59%(34 flights)
On-time trend by month
35%
May

Jun 63% → May 35% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%40
July 202564%39
August 202564%33
September 202587%30
October 202596%69
November 202578%18
December 202553%15
January 202676%25
February 202680%20
March 202659%22
April 202671%21
May 202635%23
Departures on time
67%
Diverted
0%
Flights flown
355
Months covered
12

Keep nerding

Based on 357 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.