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Flight Reliability

WN 2303 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2303 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

78%
Arrive within 15 minutes
8 min
Average arrival delay
0.3%
Cancelled
7 min early
Median arrival delay

Based on 369 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(45 flights)
  • Tue75%(47 flights)
  • Wed80%(45 flights)
  • Thu87%(45 flights)
  • Fri88%(49 flights)
  • Sat73%(79 flights)
  • Sun69%(58 flights)
On-time by departure window
  • 3–6 AM—(9 flights)
  • 6–9 AM100%(25 flights)
  • 9 AM–12 PM74%(35 flights)
  • 12–3 PM84%(87 flights)
  • 3–6 PM82%(102 flights)
  • 6–9 PM66%(92 flights)
  • 9 PM–12 AM56%(18 flights)
On-time trend by month
74%
May

Jun 79% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%19
July 202568%19
August 202562%37
September 202574%38
October 202553%17
November 202591%23
December 202571%21
January 202688%34
February 202682%39
March 202686%55
April 202691%35
May 202674%31
Departures on time
74%
Diverted
0%
Flights flown
368
Months covered
12

Keep nerding

Based on 369 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.