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Flight Reliability

WN 2391 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2391 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

80%
Arrive within 15 minutes
4 min
Average arrival delay
0.3%
Cancelled
7 min early
Median arrival delay

Based on 400 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(76 flights)
  • Tue96%(45 flights)
  • Wed91%(45 flights)
  • Thu73%(73 flights)
  • Fri76%(71 flights)
  • Sat73%(37 flights)
  • Sun75%(51 flights)
On-time by departure window
  • 6–9 AM96%(93 flights)
  • 9 AM–12 PM87%(85 flights)
  • 12–3 PM76%(67 flights)
  • 3–6 PM88%(56 flights)
  • 6–9 PM48%(52 flights)
  • 9 PM–12 AM71%(45 flights)
On-time trend by month
86%
May

Jun 58% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%31
July 202568%31
August 202582%50
September 202590%52
October 202571%14
November 202591%35
December 202576%50
January 202684%32
February 2026100%18
March 202658%19
April 202687%30
May 202686%36
Departures on time
75%
Diverted
0.3%
Flights flown
398
Months covered
12

Keep nerding

Based on 400 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.