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WanderNerd

Flight Reliability

WN 1784 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1784 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

74%
Arrive within 15 minutes
9 min
Average arrival delay
0.3%
Cancelled
1 min early
Median arrival delay

Based on 328 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(47 flights)
  • Tue85%(47 flights)
  • Wed79%(47 flights)
  • Thu77%(47 flights)
  • Fri70%(46 flights)
  • Sat77%(43 flights)
  • Sun57%(46 flights)
On-time by departure window
  • 6–9 AM90%(70 flights)
  • 12–3 PM77%(31 flights)
  • 3–6 PM73%(138 flights)
  • 6–9 PM65%(40 flights)
  • 9 PM–12 AM57%(44 flights)
On-time trend by month
55%
May

Jun 90% → May 55% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%29
July 202590%31
August 202559%29
September 202580%30
November 202558%26
December 202562%29
January 202687%31
February 202696%28
March 202663%30
April 202668%28
May 202655%31
Departures on time
73%
Diverted
1.2%
Flights flown
323
Months covered
12

Based on 328 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.