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Flight Reliability

WN 3522 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3522 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

80%
Arrive within 15 minutes
7 min
Average arrival delay
1.1%
Cancelled
5 min early
Median arrival delay

Based on 370 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(46 flights)
  • Tue75%(52 flights)
  • Wed86%(51 flights)
  • Thu73%(45 flights)
  • Fri78%(51 flights)
  • Sat80%(60 flights)
  • Sun84%(61 flights)
On-time by departure window
  • 3–6 AM—(8 flights)
  • 6–9 AM95%(184 flights)
  • 9 AM–12 PM88%(17 flights)
  • 12–3 PM64%(36 flights)
  • 3–6 PM—(8 flights)
  • 6–9 PM58%(52 flights)
  • 9 PM–12 AM61%(61 flights)
On-time trend by month
95%
May

Jun 61% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202561%31
July 202569%35
August 202584%32
September 2025100%30
October 202553%30
November 202561%23
December 202557%21
January 202697%31
February 2026100%26
March 202677%30
April 202692%38
May 202695%39
Departures on time
76%
Diverted
0%
Flights flown
366
Months covered
12

Keep nerding

Based on 370 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.