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Flight Reliability

WN 1590 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1590 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

71%
Arrive within 15 minutes
12 min
Average arrival delay
1.6%
Cancelled
1 min
Median arrival delay

Based on 383 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(48 flights)
  • Tue66%(67 flights)
  • Wed73%(67 flights)
  • Thu75%(48 flights)
  • Fri81%(48 flights)
  • Sat75%(47 flights)
  • Sun58%(52 flights)
On-time by departure window
  • 3–6 AM—(3 flights)
  • 6–9 AM90%(10 flights)
  • 9 AM–12 PM78%(141 flights)
  • 12–3 PM81%(86 flights)
  • 3–6 PM59%(112 flights)
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM46%(24 flights)
On-time trend by month
70%
May

Jun 67% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%39
July 202579%47
August 202542%33
September 202559%34
October 202578%45
November 202593%30
December 202565%31
January 202690%10
February 202678%18
March 202680%30
April 202667%30
May 202670%30
Departures on time
68%
Diverted
0%
Flights flown
377
Months covered
12

Keep nerding

Based on 383 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.