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Flight Reliability

WN 4071 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4071 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

67%
Arrive within 15 minutes
20 min
Average arrival delay
0%
Cancelled
1 min
Median arrival delay

Based on 124 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon53%(19 flights)
  • Tue56%(16 flights)
  • Wed53%(17 flights)
  • Thu77%(22 flights)
  • Fri75%(20 flights)
  • Sat85%(13 flights)
  • Sun71%(17 flights)
On-time by departure window
  • 6–9 AM86%(14 flights)
  • 9 AM–12 PM84%(32 flights)
  • 3–6 PM—(8 flights)
  • 6–9 PM53%(70 flights)
On-time trend by month
42%
May

Jul 60% → May 42% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202560%10
August 202589%18
September 202581%21
October 202585%13
April 202652%21
May 202642%26
Departures on time
62%
Diverted
0%
Flights flown
124
Months covered
11

Keep nerding

Based on 124 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.