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WanderNerd

Flight Reliability

WN 1422 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1422 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
8 min
Average arrival delay
1.4%
Cancelled
3 min early
Median arrival delay

Based on 425 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(71 flights)
  • Tue92%(48 flights)
  • Wed83%(47 flights)
  • Thu73%(71 flights)
  • Fri78%(69 flights)
  • Sat79%(52 flights)
  • Sun77%(60 flights)
On-time by departure window
  • 3–6 AM97%(60 flights)
  • 6–9 AM93%(110 flights)
  • 9 AM–12 PM91%(66 flights)
  • 12–3 PM59%(70 flights)
  • 3–6 PM64%(92 flights)
  • 6–9 PM60%(20 flights)
On-time trend by month
93%
May

Jun 74% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%31
July 202566%29
August 202555%29
September 202580%30
October 202593%43
November 202583%29
December 202555%31
January 202697%33
February 202692%36
March 202663%41
April 202688%43
May 202693%43
Departures on time
75%
Diverted
0.2%
Flights flown
418
Months covered
12

Based on 425 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.