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WanderNerd

Flight Reliability

WN 3042 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3042 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

74%
Arrive within 15 minutes
9 min
Average arrival delay
1.2%
Cancelled
2 min early
Median arrival delay

Based on 339 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(56 flights)
  • Tue83%(48 flights)
  • Wed84%(45 flights)
  • Thu73%(56 flights)
  • Fri59%(58 flights)
  • Sat72%(25 flights)
  • Sun72%(47 flights)
On-time by departure window
  • 6–9 AM89%(81 flights)
  • 9 AM–12 PM84%(45 flights)
  • 12–3 PM80%(51 flights)
  • 3–6 PM56%(78 flights)
  • 6–9 PM66%(73 flights)
  • 9 PM–12 AM(7 flights)
On-time trend by month
62%
May

Jun 89% → May 62% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%45
July 202577%53
August 202575%20
September 202582%17
October 202566%59
November 202594%18
December 202567%36
March 202682%17
April 202664%28
May 202662%29
Departures on time
67%
Diverted
0%
Flights flown
335
Months covered
12

Based on 339 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.