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Flight Reliability

WN 3530 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3530 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

79%
Arrive within 15 minutes
10 min
Average arrival delay
1.3%
Cancelled
2 min early
Median arrival delay

Based on 226 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(34 flights)
  • Tue85%(26 flights)
  • Wed93%(28 flights)
  • Thu68%(34 flights)
  • Fri69%(35 flights)
  • Sat79%(19 flights)
  • Sun79%(47 flights)
On-time by departure window
  • 6–9 AM92%(24 flights)
  • 12–3 PM86%(35 flights)
  • 3–6 PM77%(83 flights)
  • 6–9 PM68%(41 flights)
  • 9 PM–12 AM78%(40 flights)
On-time trend by month
80%
May

Jun 81% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%16
July 202586%14
August 202594%16
September 202553%17
November 202594%34
December 202584%25
February 202640%10
March 202664%28
April 202680%30
May 202680%30
Departures on time
74%
Diverted
0%
Flights flown
223
Months covered
11

Keep nerding

Based on 226 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.