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WanderNerd

Flight Reliability

WN 4190 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4190 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

88%
Arrive within 15 minutes
1 min
Average arrival delay
1.1%
Cancelled
5 min early
Median arrival delay

Based on 92 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(12 flights)
  • Tue(0 flights)
  • Wed(0 flights)
  • Thu80%(15 flights)
  • Fri94%(16 flights)
  • Sat85%(20 flights)
  • Sun93%(28 flights)
On-time by departure window
  • 6–9 AM100%(28 flights)
  • 9 AM–12 PM87%(30 flights)
  • 12–3 PM91%(23 flights)
  • 6–9 PM(2 flights)
  • 9 PM–12 AM(8 flights)
On-time trend by month
96%
May

Oct 85% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
October 202585%26
April 202694%16
May 202696%22
Departures on time
88%
Diverted
0%
Flights flown
91
Months covered
8

Based on 92 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.