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Flight Reliability

WN 1842 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1842 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
2 min
Average arrival delay
0.8%
Cancelled
6 min early
Median arrival delay

Based on 383 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(61 flights)
  • Tue81%(58 flights)
  • Wed82%(55 flights)
  • Thu78%(59 flights)
  • Fri82%(54 flights)
  • Sat86%(44 flights)
  • Sun63%(49 flights)
On-time by departure window
  • 3–6 AM94%(18 flights)
  • 6–9 AM90%(58 flights)
  • 9 AM–12 PM87%(105 flights)
  • 12–3 PM74%(89 flights)
  • 3–6 PM72%(81 flights)
  • 6–9 PM67%(12 flights)
  • 9 PM–12 AM47%(17 flights)
On-time trend by month
95%
May

Jun 74% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%42
July 202582%50
August 202570%27
September 202577%26
October 202563%30
November 202593%29
December 202568%28
January 202665%17
February 202668%34
March 202689%54
April 2026100%24
May 202695%19
Departures on time
72%
Diverted
0%
Flights flown
380
Months covered
12

Keep nerding

Based on 383 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.