Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 3448 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3448 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

79%
Arrive within 15 minutes
6 min
Average arrival delay
0.9%
Cancelled
5 min early
Median arrival delay

Based on 431 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(71 flights)
  • Tue82%(62 flights)
  • Wed75%(64 flights)
  • Thu88%(76 flights)
  • Fri77%(69 flights)
  • Sat74%(38 flights)
  • Sun61%(46 flights)
On-time by departure window
  • 6–9 AM95%(94 flights)
  • 9 AM–12 PM72%(87 flights)
  • 12–3 PM84%(68 flights)
  • 3–6 PM75%(114 flights)
  • 6–9 PM64%(55 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
52%
May

Jun 72% → May 52% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%50
July 202578%55
August 202593%27
September 202577%22
October 202577%51
November 202581%36
December 202592%36
January 202696%24
February 202688%34
March 202683%30
April 202663%30
May 202652%31
Departures on time
77%
Diverted
0.2%
Flights flown
426
Months covered
12

Keep nerding

Based on 431 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.