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Flight Reliability

WN 2012 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2012 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
5 min
Average arrival delay
0.7%
Cancelled
4 min early
Median arrival delay

Based on 401 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(66 flights)
  • Tue85%(47 flights)
  • Wed85%(47 flights)
  • Thu77%(66 flights)
  • Fri69%(68 flights)
  • Sat65%(52 flights)
  • Sun83%(48 flights)
On-time by departure window
  • 3–6 AM84%(32 flights)
  • 6–9 AM86%(44 flights)
  • 9 AM–12 PM94%(93 flights)
  • 12–3 PM75%(133 flights)
  • 3–6 PM65%(17 flights)
  • 6–9 PM59%(69 flights)
  • 9 PM–12 AM—(6 flights)
On-time trend by month
95%
May

Jun 64% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%33
July 202563%32
August 202583%53
September 202598%56
October 202584%31
November 202577%30
December 202569%32
January 202671%31
February 202682%28
March 202657%30
April 202679%19
May 202695%19
Departures on time
76%
Diverted
1.0%
Flights flown
394
Months covered
12

Keep nerding

Based on 401 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.