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Flight Reliability

WN 4184 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4184 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

90%
Arrive within 15 minutes
6 min early
Average arrival delay
0.8%
Cancelled
11 min early
Median arrival delay

Based on 256 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(41 flights)
  • Tue100%(27 flights)
  • Wed93%(28 flights)
  • Thu86%(43 flights)
  • Fri80%(44 flights)
  • Sat92%(37 flights)
  • Sun97%(32 flights)
On-time by departure window
  • 3–6 AM100%(52 flights)
  • 6–9 AM90%(115 flights)
  • 9 AM–12 PM87%(53 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM—(8 flights)
  • 6–9 PM—(8 flights)
  • 9 PM–12 AM83%(12 flights)
On-time trend by month
98%
May

Nov 97% → May 98% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202597%36
December 202591%43
February 202675%28
March 202674%42
April 202698%46
May 202698%48
Departures on time
89%
Diverted
0.8%
Flights flown
252
Months covered
8

Keep nerding

Based on 256 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.