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WanderNerd

Flight Reliability

WN 4350 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4350 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

73%
Arrive within 15 minutes
5 min
Average arrival delay
2.6%
Cancelled
2 min early
Median arrival delay

Based on 191 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon66%(29 flights)
  • Tue91%(22 flights)
  • Wed86%(22 flights)
  • Thu67%(27 flights)
  • Fri72%(29 flights)
  • Sat84%(25 flights)
  • Sun55%(31 flights)
On-time by departure window
  • 3–6 AM97%(59 flights)
  • 6–9 AM60%(15 flights)
  • 9 AM–12 PM68%(19 flights)
  • 12–3 PM(6 flights)
  • 3–6 PM85%(13 flights)
  • 6–9 PM58%(72 flights)
  • 9 PM–12 AM(1 flights)
On-time trend by month
48%
May

Jun 100% → May 48% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%30
July 202597%29
October 202571%17
December 202560%10
March 202658%26
April 202672%29
May 202648%29
Departures on time
68%
Diverted
0.5%
Flights flown
185
Months covered
11

Based on 191 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.