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Flight Reliability

WN 2181 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2181 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
12 min
Average arrival delay
1.3%
Cancelled
4 min early
Median arrival delay

Based on 466 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(69 flights)
  • Tue89%(55 flights)
  • Wed93%(56 flights)
  • Thu64%(69 flights)
  • Fri60%(74 flights)
  • Sat81%(52 flights)
  • Sun56%(84 flights)
On-time by departure window
  • 3–6 AM100%(31 flights)
  • 6–9 AM97%(89 flights)
  • 9 AM–12 PM78%(40 flights)
  • 12–3 PM68%(91 flights)
  • 3–6 PM73%(44 flights)
  • 6–9 PM55%(129 flights)
  • 9 PM–12 AM51%(35 flights)
On-time trend by month
85%
May

Jun 46% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202546%33
July 202582%33
August 202563%48
September 202569%51
October 2025100%31
November 202562%55
December 202572%39
January 202697%33
February 2026100%28
March 202648%50
April 202677%31
May 202685%27
Departures on time
66%
Diverted
0.2%
Flights flown
459
Months covered
12

Keep nerding

Based on 466 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.