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Flight Reliability

WN 319 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 319 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

81%
Arrive within 15 minutes
3 min
Average arrival delay
1.6%
Cancelled
6 min early
Median arrival delay

Based on 445 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(60 flights)
  • Tue85%(71 flights)
  • Wed86%(65 flights)
  • Thu77%(57 flights)
  • Fri81%(63 flights)
  • Sat69%(48 flights)
  • Sun84%(74 flights)
On-time by departure window
  • 3–6 AM100%(26 flights)
  • 6–9 AM94%(35 flights)
  • 9 AM–12 PM95%(78 flights)
  • 12–3 PM91%(44 flights)
  • 3–6 PM83%(78 flights)
  • 6–9 PM67%(177 flights)
On-time trend by month
69%
May

Jun 97% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%37
July 202583%41
August 202577%31
September 202580%30
October 202565%31
November 202578%32
December 202565%49
January 202688%40
February 202692%39
March 2026100%44
April 202675%32
May 202669%32
Departures on time
75%
Diverted
0%
Flights flown
438
Months covered
12

Keep nerding

Based on 445 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.