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Flight Reliability

WN 4382 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4382 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

77%
Arrive within 15 minutes
6 min
Average arrival delay
0%
Cancelled
3 min early
Median arrival delay

Based on 457 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(69 flights)
  • Tue79%(72 flights)
  • Wed78%(73 flights)
  • Thu74%(70 flights)
  • Fri65%(69 flights)
  • Sat85%(60 flights)
  • Sun71%(44 flights)
On-time by departure window
  • 6–9 AM100%(39 flights)
  • 9 AM–12 PM92%(62 flights)
  • 12–3 PM80%(83 flights)
  • 3–6 PM72%(118 flights)
  • 6–9 PM68%(150 flights)
  • 9 PM–12 AM—(5 flights)
On-time trend by month
87%
May

Jun 54% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202554%48
July 202573%52
August 202589%56
September 202584%56
October 202562%37
November 202566%29
December 202574%31
January 202692%26
February 2026100%20
March 202681%26
April 202673%37
May 202687%39
Departures on time
72%
Diverted
0%
Flights flown
457
Months covered
12

Keep nerding

Based on 457 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.