Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 3494 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3494 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

91%
Arrive within 15 minutes
7 min early
Average arrival delay
0%
Cancelled
12 min early
Median arrival delay

Based on 387 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon93%(60 flights)
  • Tue93%(59 flights)
  • Wed90%(61 flights)
  • Thu97%(59 flights)
  • Fri88%(60 flights)
  • Sat84%(49 flights)
  • Sun86%(36 flights)
On-time by departure window
  • 3–6 AM91%(11 flights)
  • 6–9 AM94%(215 flights)
  • 9 AM–12 PM—(8 flights)
  • 12–3 PM97%(85 flights)
  • 3–6 PM79%(14 flights)
  • 6–9 PM71%(17 flights)
  • 9 PM–12 AM71%(34 flights)
On-time trend by month
72%
May

Jun 97% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%29
July 202597%31
August 2025100%47
September 202594%48
October 202575%32
November 2025100%25
December 2025100%27
January 202686%29
February 202696%28
March 202676%29
April 202690%30
May 202672%29
Departures on time
90%
Diverted
0.8%
Flights flown
384
Months covered
12

Keep nerding

Based on 387 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.