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Flight Reliability

WN 406 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 406 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
0.2%
Cancelled
2 min early
Median arrival delay

Based on 428 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(56 flights)
  • Tue74%(70 flights)
  • Wed75%(64 flights)
  • Thu62%(53 flights)
  • Fri61%(51 flights)
  • Sat85%(52 flights)
  • Sun69%(77 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM95%(64 flights)
  • 9 AM–12 PM87%(86 flights)
  • 12–3 PM71%(128 flights)
  • 3–6 PM53%(85 flights)
  • 6–9 PM54%(59 flights)
On-time trend by month
54%
May

Jun 90% → May 54% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%10
August 202574%46
September 202598%48
October 202573%37
November 202565%34
December 202568%28
January 202691%23
February 202674%35
March 202678%27
April 202662%60
May 202654%67
Departures on time
70%
Diverted
0.9%
Flights flown
423
Months covered
12

Keep nerding

Based on 428 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.