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Flight Reliability

WN 2859 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2859 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

83%
Arrive within 15 minutes
1 min
Average arrival delay
0%
Cancelled
9 min early
Median arrival delay

Based on 343 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(48 flights)
  • Tue91%(56 flights)
  • Wed89%(56 flights)
  • Thu76%(46 flights)
  • Fri78%(45 flights)
  • Sat74%(46 flights)
  • Sun89%(46 flights)
On-time by departure window
  • 3–6 AM100%(43 flights)
  • 6–9 AM87%(60 flights)
  • 9 AM–12 PM85%(41 flights)
  • 12–3 PM76%(117 flights)
  • 3–6 PM53%(15 flights)
  • 6–9 PM86%(59 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
54%
May

Jun 84% → May 54% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202584%31
July 202594%31
August 202594%31
September 2025100%30
October 202574%19
November 202578%18
December 202566%29
January 2026100%26
February 2026100%21
March 202693%30
April 202668%38
May 202654%39
Departures on time
79%
Diverted
0%
Flights flown
343
Months covered
12

Keep nerding

Based on 343 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.