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Flight Reliability

WN 2438 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2438 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

64%
Arrive within 15 minutes
13 min
Average arrival delay
0.3%
Cancelled
4 min
Median arrival delay

Based on 340 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon51%(53 flights)
  • Tue77%(53 flights)
  • Wed82%(50 flights)
  • Thu51%(51 flights)
  • Fri58%(52 flights)
  • Sat60%(35 flights)
  • Sun71%(44 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM—(3 flights)
  • 9 AM–12 PM81%(70 flights)
  • 12–3 PM82%(66 flights)
  • 3–6 PM56%(139 flights)
  • 6–9 PM41%(46 flights)
  • 9 PM–12 AM54%(13 flights)
On-time trend by month
58%
May

Jun 60% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%52
July 202549%57
August 202567%27
September 202567%21
October 202563%30
November 202584%19
December 202573%15
January 202691%21
March 202667%21
April 202661%31
May 202658%36
Departures on time
61%
Diverted
0.3%
Flights flown
338
Months covered
12

Keep nerding

Based on 340 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.