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WanderNerd

Flight Reliability

WN 1125 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1125 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
5 min
Average arrival delay
0.3%
Cancelled
4 min early
Median arrival delay

Based on 347 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(52 flights)
  • Tue89%(52 flights)
  • Wed80%(51 flights)
  • Thu80%(51 flights)
  • Fri81%(52 flights)
  • Sat70%(40 flights)
  • Sun79%(48 flights)
On-time by departure window
  • 3–6 AM92%(13 flights)
  • 6–9 AM88%(100 flights)
  • 9 AM–12 PM78%(60 flights)
  • 12–3 PM79%(113 flights)
  • 3–6 PM63%(27 flights)
  • 6–9 PM57%(28 flights)
  • 9 PM–12 AM(5 flights)
On-time trend by month
69%
May

Jun 57% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%30
July 202583%30
August 202590%31
September 202597%30
October 202563%24
November 202596%25
December 202590%29
January 202687%31
February 202664%28
March 202653%34
April 202696%28
May 202669%26
Departures on time
73%
Diverted
0%
Flights flown
346
Months covered
12

Based on 347 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.