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Flight Reliability

WN 1909 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1909 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

78%
Arrive within 15 minutes
6 min
Average arrival delay
0.4%
Cancelled
3 min early
Median arrival delay

Based on 470 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(74 flights)
  • Tue77%(77 flights)
  • Wed75%(77 flights)
  • Thu69%(75 flights)
  • Fri75%(72 flights)
  • Sat84%(45 flights)
  • Sun94%(47 flights)
On-time by departure window
  • 3–6 AM100%(17 flights)
  • 6–9 AM93%(121 flights)
  • 9 AM–12 PM80%(131 flights)
  • 12–3 PM61%(117 flights)
  • 3–6 PM71%(42 flights)
  • 6–9 PM69%(39 flights)
On-time trend by month
78%
May

Jun 66% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202566%56
July 202567%55
August 202568%34
September 202583%30
October 202573%40
November 202592%26
December 202586%29
January 202690%30
February 202689%28
March 202697%30
April 202670%54
May 202678%55
Departures on time
76%
Diverted
0.2%
Flights flown
467
Months covered
12

Keep nerding

Based on 470 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.