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WanderNerd

Flight Reliability

WN 3474 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3474 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

76%
Arrive within 15 minutes
8 min
Average arrival delay
0.6%
Cancelled
5 min early
Median arrival delay

Based on 178 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(29 flights)
  • Tue71%(24 flights)
  • Wed65%(26 flights)
  • Thu73%(26 flights)
  • Fri81%(21 flights)
  • Sat83%(30 flights)
  • Sun86%(21 flights)
On-time by departure window
  • 3–6 AM100%(30 flights)
  • 6–9 AM100%(37 flights)
  • 9 AM–12 PM(8 flights)
  • 12–3 PM58%(33 flights)
  • 3–6 PM70%(46 flights)
  • 6–9 PM39%(18 flights)
  • 9 PM–12 AM(5 flights)
On-time trend by month
47%
Mar

Aug 79% → Mar 47% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202579%14
September 202563%16
November 202571%14
December 202589%18
January 202694%32
February 2026100%32
March 202647%34
Departures on time
75%
Diverted
0%
Flights flown
177
Months covered
10

Based on 178 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.