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Flight Reliability

WN 4346 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4346 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

78%
Arrive within 15 minutes
6 min
Average arrival delay
1.2%
Cancelled
3 min early
Median arrival delay

Based on 414 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(59 flights)
  • Tue78%(59 flights)
  • Wed80%(56 flights)
  • Thu74%(54 flights)
  • Fri78%(58 flights)
  • Sat76%(45 flights)
  • Sun76%(76 flights)
On-time by departure window
  • 3–6 AM—(9 flights)
  • 6–9 AM87%(94 flights)
  • 9 AM–12 PM74%(116 flights)
  • 12–3 PM45%(20 flights)
  • 3–6 PM76%(106 flights)
  • 6–9 PM79%(29 flights)
  • 9 PM–12 AM88%(33 flights)
On-time trend by month
58%
May

Jun 68% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%47
July 202591%46
August 202591%46
September 202578%41
October 202575%28
November 202593%28
December 202560%42
January 202685%34
February 202657%35
March 202687%31
April 202682%17
May 202658%12
Departures on time
75%
Diverted
0.5%
Flights flown
407
Months covered
12

Keep nerding

Based on 414 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.