Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 2127 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2127 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
6 min
Average arrival delay
1.2%
Cancelled
3 min early
Median arrival delay

Based on 426 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(78 flights)
  • Tue91%(56 flights)
  • Wed84%(55 flights)
  • Thu78%(81 flights)
  • Fri77%(79 flights)
  • Sat79%(34 flights)
  • Sun75%(36 flights)
On-time by departure window
  • 3–6 AM100%(18 flights)
  • 6–9 AM95%(58 flights)
  • 9 AM–12 PM84%(86 flights)
  • 12–3 PM73%(156 flights)
  • 3–6 PM74%(62 flights)
  • 6–9 PM69%(39 flights)
On-time trend by month
80%
May

Jun 92% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202592%26
July 202588%25
August 202591%22
September 202591%22
October 202554%52
November 202582%28
December 202585%33
January 202686%28
February 202682%27
March 202673%37
April 202678%58
May 202680%61
Departures on time
75%
Diverted
0.5%
Flights flown
419
Months covered
12

Keep nerding

Based on 426 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.