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WanderNerd

Flight Reliability

WN 4206 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4206 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

75%
Arrive within 15 minutes
11 min
Average arrival delay
0.9%
Cancelled
1 min early
Median arrival delay

Based on 112 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon67%(18 flights)
  • Tue(7 flights)
  • Wed(5 flights)
  • Thu75%(16 flights)
  • Fri65%(20 flights)
  • Sat82%(22 flights)
  • Sun70%(23 flights)
On-time by departure window
  • 6–9 AM94%(35 flights)
  • 3–6 PM(4 flights)
  • 6–9 PM68%(34 flights)
  • 9 PM–12 AM63%(38 flights)
On-time trend by month
57%
May

Nov 84% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202584%19
December 202550%16
March 202693%27
April 202682%22
May 202657%23
Departures on time
72%
Diverted
0%
Flights flown
111
Months covered
6

Based on 112 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.