Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 987 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 987 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

74%
Arrive within 15 minutes
11 min
Average arrival delay
0.8%
Cancelled
2 min early
Median arrival delay

Based on 377 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(49 flights)
  • Tue79%(56 flights)
  • Wed73%(55 flights)
  • Thu72%(50 flights)
  • Fri77%(51 flights)
  • Sat71%(56 flights)
  • Sun73%(56 flights)
On-time by departure window
  • 3–6 AM93%(14 flights)
  • 6–9 AM97%(68 flights)
  • 9 AM–12 PM80%(59 flights)
  • 12–3 PM56%(16 flights)
  • 3–6 PM69%(114 flights)
  • 6–9 PM61%(93 flights)
  • 9 PM–12 AM—(9 flights)
On-time trend by month
68%
May

Jun 68% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%38
July 202559%34
August 202588%33
September 202593%30
October 202587%23
November 202566%29
December 202547%30
January 202687%30
February 202689%27
March 202671%38
April 202670%30
May 202668%31
Departures on time
71%
Diverted
0.3%
Flights flown
373
Months covered
12

Keep nerding

Based on 377 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.