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WanderNerd

Flight Reliability

WN 3274 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3274 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

70%
Arrive within 15 minutes
12 min
Average arrival delay
1.2%
Cancelled
3 min
Median arrival delay

Based on 416 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(53 flights)
  • Tue77%(68 flights)
  • Wed75%(72 flights)
  • Thu78%(55 flights)
  • Fri66%(53 flights)
  • Sat61%(49 flights)
  • Sun62%(60 flights)
On-time by departure window
  • 3–6 AM(2 flights)
  • 6–9 AM96%(28 flights)
  • 9 AM–12 PM73%(175 flights)
  • 12–3 PM74%(39 flights)
  • 3–6 PM70%(64 flights)
  • 6–9 PM57%(98 flights)
  • 9 PM–12 AM(4 flights)
On-time trend by month
61%
May

Jun 79% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%28
July 202555%29
October 202571%38
November 202575%60
December 202558%74
January 202673%52
February 202670%37
March 202687%23
April 202682%27
May 202661%31
Departures on time
64%
Diverted
0.2%
Flights flown
410
Months covered
12

Based on 416 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.