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Flight Reliability

WN 2356 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2356 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
7 min
Average arrival delay
1.1%
Cancelled
1 min early
Median arrival delay

Based on 356 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(64 flights)
  • Tue78%(37 flights)
  • Wed86%(36 flights)
  • Thu72%(58 flights)
  • Fri81%(63 flights)
  • Sat55%(42 flights)
  • Sun77%(52 flights)
On-time by departure window
  • 6–9 AM92%(86 flights)
  • 9 AM–12 PM77%(75 flights)
  • 12–3 PM69%(58 flights)
  • 3–6 PM58%(79 flights)
  • 6–9 PM72%(18 flights)
  • 9 PM–12 AM81%(36 flights)
On-time trend by month
89%
May

Jun 62% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%34
July 202553%36
August 202588%17
September 202554%13
October 202546%26
November 202577%34
December 202581%42
January 202690%29
February 202691%21
March 202674%42
April 2026100%32
May 202689%26
Departures on time
73%
Diverted
0%
Flights flown
352
Months covered
12

Keep nerding

Based on 356 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.