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WanderNerd

Flight Reliability

WN 3654 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3654 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
0%
Cancelled
2 min
Median arrival delay

Based on 210 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon65%(34 flights)
  • Tue77%(31 flights)
  • Wed76%(29 flights)
  • Thu59%(32 flights)
  • Fri74%(35 flights)
  • Sat90%(19 flights)
  • Sun67%(30 flights)
On-time by departure window
  • 3–6 AM94%(18 flights)
  • 6–9 AM96%(25 flights)
  • 9 AM–12 PM82%(38 flights)
  • 12–3 PM61%(119 flights)
  • 3–6 PM(1 flights)
  • 6–9 PM(1 flights)
  • 9 PM–12 AM(8 flights)
On-time trend by month
48%
May

Jun 60% → May 48% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%25
July 202582%33
October 202596%22
December 202591%11
March 202681%36
April 202653%32
May 202648%31
Departures on time
66%
Diverted
0%
Flights flown
210
Months covered
12

Based on 210 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.