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Flight Reliability

WN 1211 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1211 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

79%
Arrive within 15 minutes
6 min
Average arrival delay
0.8%
Cancelled
4 min early
Median arrival delay

Based on 389 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(62 flights)
  • Tue90%(50 flights)
  • Wed90%(51 flights)
  • Thu74%(62 flights)
  • Fri80%(61 flights)
  • Sat73%(44 flights)
  • Sun67%(55 flights)
On-time by departure window
  • 3–6 AM—(8 flights)
  • 6–9 AM90%(153 flights)
  • 9 AM–12 PM75%(56 flights)
  • 12–3 PM72%(25 flights)
  • 3–6 PM64%(78 flights)
  • 6–9 PM50%(18 flights)
  • 9 PM–12 AM83%(47 flights)
On-time trend by month
73%
May

Jun 50% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%34
July 202557%35
August 202587%23
September 202595%21
October 202583%18
November 202577%30
December 202580%30
January 202682%28
February 202693%28
March 202684%76
April 202692%36
May 202673%26
Departures on time
75%
Diverted
0.3%
Flights flown
385
Months covered
12

Keep nerding

Based on 389 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.