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WanderNerd

Flight Reliability

WN 1801 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1801 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

72%
Arrive within 15 minutes
10 min
Average arrival delay
0%
Cancelled
0 min
Median arrival delay

Based on 261 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(41 flights)
  • Tue85%(34 flights)
  • Wed78%(32 flights)
  • Thu71%(41 flights)
  • Fri60%(45 flights)
  • Sat78%(40 flights)
  • Sun64%(28 flights)
On-time by departure window
  • 3–6 AM(1 flights)
  • 6–9 AM94%(34 flights)
  • 9 AM–12 PM(1 flights)
  • 12–3 PM67%(15 flights)
  • 3–6 PM76%(139 flights)
  • 6–9 PM53%(59 flights)
  • 9 PM–12 AM58%(12 flights)
On-time trend by month
38%
May

Aug 58% → May 38% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202558%24
September 202581%26
October 202582%27
November 202576%21
December 202559%17
January 2026100%31
February 202689%28
April 202674%31
May 202638%40
Departures on time
60%
Diverted
0%
Flights flown
261
Months covered
12

Based on 261 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.