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Flight Reliability

WN 1816 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1816 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
12 min
Average arrival delay
0.2%
Cancelled
2 min early
Median arrival delay

Based on 406 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(54 flights)
  • Tue65%(66 flights)
  • Wed79%(68 flights)
  • Thu67%(57 flights)
  • Fri81%(53 flights)
  • Sat80%(46 flights)
  • Sun70%(60 flights)
On-time by departure window
  • 9 AM–12 PM72%(65 flights)
  • 12–3 PM78%(156 flights)
  • 3–6 PM75%(104 flights)
  • 6–9 PM63%(38 flights)
  • 9 PM–12 AM76%(41 flights)
On-time trend by month
71%
May

Jun 57% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%30
July 202558%31
August 202589%27
September 202592%26
October 202572%47
November 202576%38
December 202567%45
January 202694%32
February 202689%26
March 202669%39
April 202675%32
May 202671%31
Departures on time
67%
Diverted
0.2%
Flights flown
404
Months covered
12

Keep nerding

Based on 406 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.