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Flight Reliability

WN 344 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 344 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

76%
Arrive within 15 minutes
5 min
Average arrival delay
0.3%
Cancelled
3 min early
Median arrival delay

Based on 320 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(39 flights)
  • Tue79%(52 flights)
  • Wed81%(52 flights)
  • Thu87%(38 flights)
  • Fri67%(39 flights)
  • Sat83%(47 flights)
  • Sun62%(52 flights)
On-time by departure window
  • 3–6 AM—(9 flights)
  • 6–9 AM92%(66 flights)
  • 9 AM–12 PM78%(72 flights)
  • 12–3 PM78%(41 flights)
  • 3–6 PM72%(65 flights)
  • 6–9 PM62%(52 flights)
  • 9 PM–12 AM36%(14 flights)
On-time trend by month
74%
May

Jun 82% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%17
July 202589%18
August 202581%31
September 202577%30
October 202567%18
November 202583%29
December 202548%31
January 202669%26
February 202678%27
March 202690%31
April 202677%30
May 202674%31
Departures on time
77%
Diverted
0%
Flights flown
319
Months covered
12

Keep nerding

Based on 320 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.