Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 3406 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3406 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

82%
Arrive within 15 minutes
3 min
Average arrival delay
1.5%
Cancelled
6 min early
Median arrival delay

Based on 333 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(41 flights)
  • Tue84%(61 flights)
  • Wed92%(60 flights)
  • Thu87%(39 flights)
  • Fri88%(40 flights)
  • Sat63%(43 flights)
  • Sun73%(44 flights)
On-time by departure window
  • 6–9 AM89%(149 flights)
  • 9 AM–12 PM83%(58 flights)
  • 12–3 PM85%(33 flights)
  • 3–6 PM67%(82 flights)
  • 6–9 PM—(5 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
96%
May

Jun 90% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%10
August 202562%39
September 202584%43
October 202594%36
November 202577%30
December 202573%33
January 202686%29
February 202678%18
March 202683%29
April 202693%27
May 202696%25
Departures on time
85%
Diverted
0%
Flights flown
328
Months covered
12

Keep nerding

Based on 333 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.