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Flight Reliability

WN 19 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 19 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
1 min
Average arrival delay
3.8%
Cancelled
9 min early
Median arrival delay

Based on 448 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(93 flights)
  • Tue97%(36 flights)
  • Wed79%(34 flights)
  • Thu89%(99 flights)
  • Fri85%(101 flights)
  • Sat—(7 flights)
  • Sun73%(60 flights)
On-time by departure window
  • 6–9 AM91%(116 flights)
  • 9 AM–12 PM86%(263 flights)
  • 12–3 PM70%(47 flights)
  • 3–6 PM—(4 flights)
On-time trend by month
87%
May

Jun 88% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%50
July 202588%51
August 202592%36
September 202586%35
October 202586%44
November 202582%17
January 202682%11
February 202690%30
March 202679%42
April 202680%51
May 202687%55
Departures on time
85%
Diverted
0.2%
Flights flown
430
Months covered
12

Keep nerding

Based on 448 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.