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WanderNerd

Flight Reliability

WN 3746 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3746 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

63%
Arrive within 15 minutes
24 min
Average arrival delay
1.4%
Cancelled
5 min
Median arrival delay

Based on 138 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(19 flights)
  • Tue(8 flights)
  • Wed(8 flights)
  • Thu55%(20 flights)
  • Fri53%(19 flights)
  • Sat58%(19 flights)
  • Sun72%(43 flights)
On-time by departure window
  • 6–9 AM95%(20 flights)
  • 9 AM–12 PM82%(17 flights)
  • 12–3 PM68%(53 flights)
  • 3–6 PM(1 flights)
  • 6–9 PM27%(37 flights)
  • 9 PM–12 AM(8 flights)
On-time trend by month
10%
Mar

Jun 59% → Mar 10% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%22
July 202585%20
August 202555%11
October 202587%30
March 202610%21
Departures on time
59%
Diverted
0%
Flights flown
136
Months covered
11

Based on 138 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.