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WanderNerd

Flight Reliability

WN 2815 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2815 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
11 min
Average arrival delay
0.5%
Cancelled
1 min
Median arrival delay

Based on 379 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(54 flights)
  • Tue85%(60 flights)
  • Wed82%(60 flights)
  • Thu81%(48 flights)
  • Fri72%(47 flights)
  • Sat75%(32 flights)
  • Sun64%(72 flights)
On-time by departure window
  • 3–6 AM92%(13 flights)
  • 6–9 AM89%(35 flights)
  • 9 AM–12 PM98%(44 flights)
  • 12–3 PM77%(169 flights)
  • 3–6 PM65%(76 flights)
  • 6–9 PM38%(29 flights)
  • 9 PM–12 AM(7 flights)
On-time trend by month
64%
May

Jun 67% → May 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%48
July 202550%48
August 202580%35
September 202590%30
October 202593%56
November 202594%16
December 202584%25
January 202672%29
February 202678%18
March 202665%23
April 202683%23
May 202664%22
Departures on time
68%
Diverted
1.1%
Flights flown
373
Months covered
12

Based on 379 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.