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Flight Reliability

WN 2109 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2109 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

75%
Arrive within 15 minutes
8 min
Average arrival delay
0.2%
Cancelled
1 min
Median arrival delay

Based on 410 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(64 flights)
  • Tue78%(51 flights)
  • Wed63%(51 flights)
  • Thu71%(65 flights)
  • Fri80%(65 flights)
  • Sat87%(52 flights)
  • Sun75%(61 flights)
On-time by departure window
  • 6–9 AM93%(134 flights)
  • 9 AM–12 PM80%(117 flights)
  • 12–3 PM44%(39 flights)
  • 3–6 PM61%(62 flights)
  • 6–9 PM58%(57 flights)
On-time trend by month
93%
May

Jun 50% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%24
July 202548%27
August 202562%45
September 202570%47
October 202589%35
November 202564%28
December 202572%29
January 202690%38
February 202693%44
March 202669%32
April 202687%30
May 202693%30
Departures on time
72%
Diverted
0%
Flights flown
409
Months covered
12

Keep nerding

Based on 410 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.