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Flight Reliability

WN 383 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 383 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

68%
Arrive within 15 minutes
11 min
Average arrival delay
1.1%
Cancelled
3 min
Median arrival delay

Based on 550 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon58%(89 flights)
  • Tue78%(78 flights)
  • Wed87%(78 flights)
  • Thu57%(90 flights)
  • Fri57%(88 flights)
  • Sat77%(52 flights)
  • Sun71%(68 flights)
On-time by departure window
  • 6–9 AM78%(77 flights)
  • 9 AM–12 PM83%(141 flights)
  • 12–3 PM58%(119 flights)
  • 3–6 PM55%(121 flights)
  • 6–9 PM66%(62 flights)
  • 9 PM–12 AM70%(23 flights)
On-time trend by month
74%
May

Jun 49% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202549%45
July 202549%47
August 202561%83
September 202556%86
October 202577%53
November 202579%28
December 202590%29
January 202688%32
February 202694%47
March 202670%33
April 202666%29
May 202674%31
Departures on time
65%
Diverted
0.2%
Flights flown
543
Months covered
12

Keep nerding

Based on 550 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.