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Flight Reliability

WN 2315 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2315 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

64%
Arrive within 15 minutes
18 min
Average arrival delay
1.1%
Cancelled
4 min
Median arrival delay

Based on 438 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon67%(81 flights)
  • Tue69%(52 flights)
  • Wed72%(53 flights)
  • Thu53%(83 flights)
  • Fri60%(84 flights)
  • Sat84%(25 flights)
  • Sun66%(55 flights)
On-time by departure window
  • 3–6 AM—(4 flights)
  • 6–9 AM92%(51 flights)
  • 9 AM–12 PM79%(115 flights)
  • 12–3 PM52%(158 flights)
  • 3–6 PM44%(36 flights)
  • 6–9 PM55%(60 flights)
  • 9 PM–12 AM—(9 flights)
On-time trend by month
31%
May

Jun 51% → May 31% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202551%45
July 202574%42
August 202581%47
September 202573%48
October 202590%31
November 202580%30
December 202571%31
January 202673%22
February 202691%22
March 202639%56
April 202636%33
May 202631%26
Departures on time
61%
Diverted
0%
Flights flown
433
Months covered
12

Keep nerding

Based on 438 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.