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Flight Reliability

WN 1191 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1191 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

77%
Arrive within 15 minutes
10 min
Average arrival delay
1.0%
Cancelled
1 min early
Median arrival delay

Based on 400 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon63%(49 flights)
  • Tue87%(67 flights)
  • Wed79%(66 flights)
  • Thu79%(53 flights)
  • Fri76%(53 flights)
  • Sat87%(38 flights)
  • Sun70%(69 flights)
On-time by departure window
  • 6–9 AM82%(130 flights)
  • 9 AM–12 PM94%(46 flights)
  • 12–3 PM80%(105 flights)
  • 3–6 PM68%(38 flights)
  • 6–9 PM59%(76 flights)
On-time trend by month
71%
May

Jun 64% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%36
July 202555%40
August 202570%33
September 202588%34
October 202576%37
November 202584%32
December 202594%31
January 202696%26
February 202679%24
March 202677%39
April 202681%32
May 202671%31
Departures on time
71%
Diverted
0.3%
Flights flown
395
Months covered
12

Keep nerding

Based on 400 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.