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Flight Reliability

WN 1327 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1327 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

81%
Arrive within 15 minutes
10 min
Average arrival delay
0.8%
Cancelled
5 min early
Median arrival delay

Based on 366 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(42 flights)
  • Tue88%(58 flights)
  • Wed86%(59 flights)
  • Thu89%(45 flights)
  • Fri79%(47 flights)
  • Sat83%(53 flights)
  • Sun63%(54 flights)
On-time by departure window
  • 3–6 AM92%(13 flights)
  • 6–9 AM94%(96 flights)
  • 9 AM–12 PM83%(92 flights)
  • 12–3 PM61%(44 flights)
  • 3–6 PM67%(15 flights)
  • 6–9 PM78%(98 flights)
On-time trend by month
95%
May

Jun 63% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%19
July 202553%15
August 202582%22
September 202586%21
October 202596%49
November 202581%42
December 202565%37
January 202679%29
February 202672%18
March 202673%30
April 202695%38
May 202695%38
Departures on time
79%
Diverted
1.4%
Flights flown
358
Months covered
12

Keep nerding

Based on 366 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.