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Flight Reliability

WN 951 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 951 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

76%
Arrive within 15 minutes
6 min
Average arrival delay
0.9%
Cancelled
2 min early
Median arrival delay

Based on 457 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(77 flights)
  • Tue74%(58 flights)
  • Wed74%(57 flights)
  • Thu77%(74 flights)
  • Fri74%(78 flights)
  • Sat80%(64 flights)
  • Sun78%(45 flights)
On-time by departure window
  • 6–9 AM94%(33 flights)
  • 9 AM–12 PM84%(81 flights)
  • 12–3 PM84%(167 flights)
  • 3–6 PM61%(67 flights)
  • 6–9 PM57%(54 flights)
  • 9 PM–12 AM67%(51 flights)
On-time trend by month
61%
May

Jun 85% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%26
July 202585%26
August 202573%52
September 202588%56
October 202556%39
November 202595%38
December 202582%45
January 202675%32
February 202670%27
March 202672%29
April 202674%39
May 202661%44
Departures on time
70%
Diverted
0%
Flights flown
453
Months covered
12

Keep nerding

Based on 457 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.