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Flight Reliability

WN 191 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 191 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

70%
Arrive within 15 minutes
10 min
Average arrival delay
1.6%
Cancelled
0 min
Median arrival delay

Based on 377 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(65 flights)
  • Tue76%(41 flights)
  • Wed70%(40 flights)
  • Thu63%(60 flights)
  • Fri71%(65 flights)
  • Sat74%(43 flights)
  • Sun61%(56 flights)
On-time by departure window
  • 3–6 AM100%(20 flights)
  • 6–9 AM83%(12 flights)
  • 9 AM–12 PM79%(138 flights)
  • 12–3 PM63%(54 flights)
  • 3–6 PM65%(62 flights)
  • 6–9 PM54%(84 flights)
On-time trend by month
76%
May

Jun 41% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202541%42
July 202568%41
August 202552%23
September 202571%21
October 202566%32
November 202588%32
December 202570%40
January 202687%30
February 202681%26
April 202671%34
May 202676%45
Departures on time
65%
Diverted
0.3%
Flights flown
370
Months covered
12

Keep nerding

Based on 377 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.