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Flight Reliability

WN 1320 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1320 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
9 min
Average arrival delay
1.8%
Cancelled
3 min early
Median arrival delay

Based on 389 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(56 flights)
  • Tue91%(56 flights)
  • Wed79%(56 flights)
  • Thu71%(56 flights)
  • Fri68%(57 flights)
  • Sat88%(43 flights)
  • Sun76%(58 flights)
On-time by departure window
  • 6–9 AM87%(99 flights)
  • 9 AM–12 PM97%(33 flights)
  • 12–3 PM79%(48 flights)
  • 3–6 PM59%(106 flights)
  • 6–9 PM81%(96 flights)
On-time trend by month
80%
May

Jun 67% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%27
July 202541%27
August 202583%29
September 202593%30
October 202571%17
November 202577%39
December 202582%33
January 202692%51
February 202680%39
March 202660%30
April 202687%30
May 202680%30
Departures on time
77%
Diverted
0%
Flights flown
382
Months covered
12

Keep nerding

Based on 389 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.