Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 1280 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1280 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

79%
Arrive within 15 minutes
6 min
Average arrival delay
0.6%
Cancelled
5 min early
Median arrival delay

Based on 359 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(51 flights)
  • Tue72%(53 flights)
  • Wed82%(54 flights)
  • Thu79%(53 flights)
  • Fri78%(51 flights)
  • Sat88%(43 flights)
  • Sun71%(51 flights)
On-time by departure window
  • 3–6 AM98%(43 flights)
  • 6–9 AM92%(117 flights)
  • 9 AM–12 PM83%(48 flights)
  • 12–3 PM58%(83 flights)
  • 3–6 PM72%(50 flights)
  • 6–9 PM47%(15 flights)
On-time trend by month
58%
May

Jun 91% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%33
July 202586%28
August 202594%31
September 202580%30
October 202585%27
November 2025100%32
December 202594%33
January 202673%26
February 202658%24
March 202665%31
April 202657%30
May 202658%31
Departures on time
79%
Diverted
0.3%
Flights flown
356
Months covered
12

Keep nerding

Based on 359 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.