Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 346 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 346 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

88%
Arrive within 15 minutes
1 min early
Average arrival delay
0.5%
Cancelled
9 min early
Median arrival delay

Based on 433 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(65 flights)
  • Tue91%(53 flights)
  • Wed90%(52 flights)
  • Thu88%(65 flights)
  • Fri81%(64 flights)
  • Sat86%(73 flights)
  • Sun90%(58 flights)
On-time by departure window
  • 3–6 AM100%(30 flights)
  • 6–9 AM96%(139 flights)
  • 9 AM–12 PM89%(27 flights)
  • 12–3 PM88%(43 flights)
  • 3–6 PM71%(86 flights)
  • 6–9 PM91%(88 flights)
  • 9 PM–12 AM65%(17 flights)
On-time trend by month
90%
May

Jun 61% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202561%31
July 202568%31
August 202586%51
September 202590%51
October 2025100%31
November 202593%30
December 202593%30
January 202684%31
February 2026100%28
March 202694%51
April 202691%35
May 202690%30
Departures on time
87%
Diverted
0.2%
Flights flown
430
Months covered
12

Keep nerding

Based on 433 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.