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WanderNerd

Flight Reliability

WN 2850 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2850 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

76%
Arrive within 15 minutes
8 min
Average arrival delay
0.6%
Cancelled
4 min early
Median arrival delay

Based on 349 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(59 flights)
  • Tue62%(45 flights)
  • Wed77%(39 flights)
  • Thu77%(48 flights)
  • Fri75%(51 flights)
  • Sat80%(35 flights)
  • Sun83%(70 flights)
On-time by departure window
  • 3–6 AM100%(10 flights)
  • 6–9 AM88%(74 flights)
  • 9 AM–12 PM63%(60 flights)
  • 12–3 PM77%(77 flights)
  • 3–6 PM79%(100 flights)
  • 6–9 PM50%(18 flights)
  • 9 PM–12 AM(8 flights)
On-time trend by month
25%
May

Jun 81% → May 25% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%36
July 202583%35
October 202555%22
November 202594%35
December 202572%50
January 202690%68
February 202679%53
April 202646%13
May 202625%16
Departures on time
74%
Diverted
0%
Flights flown
347
Months covered
12

Based on 349 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.