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WanderNerd

Flight Reliability

WN 2122 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2122 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

78%
Arrive within 15 minutes
8 min
Average arrival delay
0.3%
Cancelled
4 min early
Median arrival delay

Based on 325 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(35 flights)
  • Tue79%(56 flights)
  • Wed76%(53 flights)
  • Thu81%(32 flights)
  • Fri76%(38 flights)
  • Sat81%(57 flights)
  • Sun81%(52 flights)
On-time by departure window
  • 3–6 AM(1 flights)
  • 6–9 AM92%(49 flights)
  • 9 AM–12 PM83%(78 flights)
  • 12–3 PM79%(65 flights)
  • 3–6 PM85%(46 flights)
  • 6–9 PM59%(76 flights)
  • 9 PM–12 AM(8 flights)
On-time trend by month
58%
May

Jun 84% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202584%19
July 202579%19
August 202581%21
September 202595%21
October 202573%30
November 202586%14
December 202596%26
January 202683%40
February 202672%25
March 202681%43
April 202665%34
May 202658%31
Departures on time
74%
Diverted
0.3%
Flights flown
323
Months covered
12

Based on 325 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.