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Flight Reliability

WN 3320 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3320 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

71%
Arrive within 15 minutes
9 min
Average arrival delay
0%
Cancelled
2 min
Median arrival delay

Based on 322 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(45 flights)
  • Tue82%(45 flights)
  • Wed77%(43 flights)
  • Thu61%(44 flights)
  • Fri63%(49 flights)
  • Sat77%(51 flights)
  • Sun61%(44 flights)
On-time by departure window
  • 6–9 AM80%(132 flights)
  • 9 AM–12 PM75%(61 flights)
  • 12–3 PM63%(19 flights)
  • 3–6 PM59%(59 flights)
  • 6–9 PM64%(45 flights)
  • 9 PM–12 AM—(5 flights)
On-time trend by month
61%
May

Jun 62% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%29
July 202565%31
August 202576%45
September 202580%46
October 202594%47
December 202573%11
February 202670%10
March 202644%32
April 202668%31
May 202661%31
Departures on time
73%
Diverted
0.3%
Flights flown
321
Months covered
12

Keep nerding

Based on 322 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.