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Flight Reliability

WN 2621 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2621 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

67%
Arrive within 15 minutes
17 min
Average arrival delay
0.8%
Cancelled
0 min
Median arrival delay

Based on 359 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(51 flights)
  • Tue80%(46 flights)
  • Wed73%(44 flights)
  • Thu70%(47 flights)
  • Fri60%(50 flights)
  • Sat61%(46 flights)
  • Sun56%(72 flights)
On-time by departure window
  • 3–6 AM—(2 flights)
  • 6–9 AM92%(98 flights)
  • 9 AM–12 PM85%(47 flights)
  • 12–3 PM91%(11 flights)
  • 3–6 PM65%(49 flights)
  • 6–9 PM44%(81 flights)
  • 9 PM–12 AM44%(68 flights)
On-time trend by month
87%
May

Jun 44% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202544%41
July 202537%43
August 202588%33
September 202590%30
November 202578%32
December 202566%41
January 202668%34
February 202655%31
March 202667%24
April 202691%23
May 202687%23
Departures on time
61%
Diverted
0%
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.