Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 1915 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1915 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
9 min
Average arrival delay
1.3%
Cancelled
1 min early
Median arrival delay

Based on 476 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(90 flights)
  • Tue86%(43 flights)
  • Wed83%(41 flights)
  • Thu67%(89 flights)
  • Fri79%(91 flights)
  • Sat79%(53 flights)
  • Sun72%(61 flights)
On-time by departure window
  • 6–9 AM93%(93 flights)
  • 9 AM–12 PM78%(91 flights)
  • 12–3 PM70%(144 flights)
  • 3–6 PM80%(49 flights)
  • 6–9 PM66%(91 flights)
On-time trend by month
48%
May

Jun 74% → May 48% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%43
July 202558%40
August 202585%58
September 202581%57
October 202565%26
November 202587%45
December 202582%44
January 202694%34
February 202694%32
March 202667%30
April 202663%30
May 202648%29
Departures on time
68%
Diverted
0.4%
Flights flown
468
Months covered
12

Keep nerding

Based on 476 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.