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Flight Reliability

WN 3100 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3100 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

79%
Arrive within 15 minutes
3 min
Average arrival delay
1.2%
Cancelled
5 min early
Median arrival delay

Based on 413 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon59%(68 flights)
  • Tue90%(48 flights)
  • Wed83%(52 flights)
  • Thu74%(66 flights)
  • Fri83%(63 flights)
  • Sat87%(45 flights)
  • Sun86%(66 flights)
On-time by departure window
  • 3–6 AM—(5 flights)
  • 6–9 AM93%(54 flights)
  • 9 AM–12 PM86%(43 flights)
  • 12–3 PM71%(59 flights)
  • 3–6 PM77%(86 flights)
  • 6–9 PM62%(74 flights)
  • 9 PM–12 AM89%(87 flights)
On-time trend by month
64%
May

Jun 68% → May 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%63
July 202571%66
August 202572%46
September 202591%42
October 202565%26
November 2025100%28
December 2025100%31
January 202693%30
February 202688%17
March 202683%29
April 202663%16
May 202664%14
Departures on time
77%
Diverted
0%
Flights flown
408
Months covered
12

Keep nerding

Based on 413 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.