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Flight Reliability

WN 3111 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3111 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

85%
Arrive within 15 minutes
0 min
Average arrival delay
0.6%
Cancelled
8 min early
Median arrival delay

Based on 322 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(51 flights)
  • Tue87%(52 flights)
  • Wed78%(50 flights)
  • Thu78%(49 flights)
  • Fri87%(46 flights)
  • Sat82%(33 flights)
  • Sun95%(39 flights)
On-time by departure window
  • 6–9 AM93%(54 flights)
  • 9 AM–12 PM93%(97 flights)
  • 12–3 PM82%(50 flights)
  • 3–6 PM70%(40 flights)
  • 6–9 PM—(9 flights)
  • 9 PM–12 AM79%(70 flights)
On-time trend by month
62%
May

Jun 90% → May 62% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%31
July 202588%41
August 202587%23
September 202573%22
October 202580%39
November 202582%17
December 202589%27
January 202697%34
February 2026100%26
March 202671%31
April 202681%16
May 202662%13
Departures on time
78%
Diverted
0%
Flights flown
320
Months covered
12

Keep nerding

Based on 322 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.