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Flight Reliability

WN 271 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 271 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

76%
Arrive within 15 minutes
8 min
Average arrival delay
1.3%
Cancelled
4 min early
Median arrival delay

Based on 380 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon64%(55 flights)
  • Tue88%(48 flights)
  • Wed81%(48 flights)
  • Thu79%(56 flights)
  • Fri77%(56 flights)
  • Sat68%(57 flights)
  • Sun78%(55 flights)
On-time by departure window
  • 3–6 AM100%(54 flights)
  • 6–9 AM87%(46 flights)
  • 9 AM–12 PM87%(45 flights)
  • 12–3 PM78%(49 flights)
  • 3–6 PM64%(70 flights)
  • 6–9 PM59%(91 flights)
  • 9 PM–12 AM75%(20 flights)
On-time trend by month
68%
May

Jun 65% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%23
July 202560%20
August 202568%31
September 202567%30
October 202554%35
November 202583%30
December 202584%31
January 202697%29
February 2026100%26
March 202685%54
April 202674%35
May 202668%31
Departures on time
73%
Diverted
0%
Flights flown
375
Months covered
12

Keep nerding

Based on 380 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.