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Flight Reliability

WN 1487 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1487 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

85%
Arrive within 15 minutes
2 min early
Average arrival delay
0.7%
Cancelled
8 min early
Median arrival delay

Based on 425 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(68 flights)
  • Tue92%(52 flights)
  • Wed86%(50 flights)
  • Thu86%(70 flights)
  • Fri81%(70 flights)
  • Sat86%(59 flights)
  • Sun81%(53 flights)
On-time by departure window
  • 3–6 AM95%(38 flights)
  • 6–9 AM93%(57 flights)
  • 9 AM–12 PM90%(59 flights)
  • 12–3 PM85%(52 flights)
  • 3–6 PM74%(34 flights)
  • 6–9 PM84%(140 flights)
  • 9 PM–12 AM74%(42 flights)
On-time trend by month
98%
May

Jun 82% → May 98% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%28
July 202581%26
August 202593%45
September 202581%47
October 202570%30
November 202569%29
December 202583%29
January 202690%30
February 202691%35
March 202681%31
April 202691%43
May 202698%49
Departures on time
80%
Diverted
0%
Flights flown
422
Months covered
12

Keep nerding

Based on 425 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.