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Flight Reliability

WN 1971 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1971 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

86%
Arrive within 15 minutes
0 min
Average arrival delay
1.1%
Cancelled
8 min early
Median arrival delay

Based on 361 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon94%(47 flights)
  • Tue84%(57 flights)
  • Wed87%(60 flights)
  • Thu78%(51 flights)
  • Fri86%(49 flights)
  • Sat86%(42 flights)
  • Sun88%(49 flights)
On-time by departure window
  • 3–6 AM97%(31 flights)
  • 6–9 AM94%(177 flights)
  • 9 AM–12 PM79%(43 flights)
  • 12–3 PM86%(36 flights)
  • 3–6 PM71%(38 flights)
  • 6–9 PM54%(28 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
90%
May

Jun 97% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%32
July 202590%30
August 202567%27
September 202556%25
October 202596%25
November 202593%28
December 202564%22
January 202693%27
February 2026100%28
March 202677%34
April 202697%39
May 202690%38
Departures on time
82%
Diverted
0.6%
Flights flown
355
Months covered
12

Keep nerding

Based on 361 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.