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Flight Reliability

WN 3104 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3104 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

76%
Arrive within 15 minutes
5 min
Average arrival delay
0.7%
Cancelled
7 min early
Median arrival delay

Based on 298 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(51 flights)
  • Tue74%(43 flights)
  • Wed78%(36 flights)
  • Thu75%(40 flights)
  • Fri77%(52 flights)
  • Sat80%(39 flights)
  • Sun80%(35 flights)
On-time by departure window
  • 3–6 AM85%(26 flights)
  • 6–9 AM92%(25 flights)
  • 9 AM–12 PM83%(18 flights)
  • 12–3 PM81%(32 flights)
  • 3–6 PM88%(103 flights)
  • 6–9 PM52%(92 flights)
On-time trend by month
72%
May

Jun 86% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%29
July 202589%26
August 2025100%30
September 202597%30
November 202592%12
December 202572%39
January 2026100%10
March 202614%29
April 202675%40
May 202672%43
Departures on time
73%
Diverted
0%
Flights flown
296
Months covered
12

Keep nerding

Based on 298 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.