Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 3374 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3374 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

85%
Arrive within 15 minutes
2 min
Average arrival delay
0.7%
Cancelled
6 min early
Median arrival delay

Based on 299 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(46 flights)
  • Tue80%(44 flights)
  • Wed89%(46 flights)
  • Thu88%(43 flights)
  • Fri91%(46 flights)
  • Sat91%(22 flights)
  • Sun73%(48 flights)
On-time by departure window
  • 3–6 AM97%(33 flights)
  • 6–9 AM85%(86 flights)
  • 9 AM–12 PM85%(60 flights)
  • 12–3 PM78%(55 flights)
  • 3–6 PM81%(37 flights)
  • 6–9 PM92%(24 flights)
On-time trend by month
81%
May

Jun 94% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%16
July 202583%18
August 202592%13
September 202592%13
November 202588%25
December 202589%27
January 202697%29
February 202682%28
March 202681%52
April 202674%38
May 202681%32
Departures on time
82%
Diverted
0.7%
Flights flown
295
Months covered
12

Keep nerding

Based on 299 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.