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Flight Reliability

WN 1333 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1333 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

82%
Arrive within 15 minutes
4 min
Average arrival delay
0.3%
Cancelled
5 min early
Median arrival delay

Based on 377 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(57 flights)
  • Tue88%(50 flights)
  • Wed88%(50 flights)
  • Thu76%(58 flights)
  • Fri75%(59 flights)
  • Sat77%(48 flights)
  • Sun83%(54 flights)
On-time by departure window
  • 6–9 AM92%(77 flights)
  • 9 AM–12 PM83%(103 flights)
  • 12–3 PM89%(61 flights)
  • 3–6 PM67%(58 flights)
  • 6–9 PM75%(63 flights)
  • 9 PM–12 AM86%(14 flights)
On-time trend by month
87%
May

Jun 60% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%25
July 202578%27
August 202570%27
September 202596%26
October 202588%64
November 202577%31
December 202577%31
January 202685%13
February 202676%38
March 202685%33
April 202697%30
May 202687%31
Departures on time
80%
Diverted
0%
Flights flown
376
Months covered
12

Keep nerding

Based on 377 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.