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Flight Reliability

WN 2855 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 2855 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

85%
Arrive within 15 minutes
3 min
Average arrival delay
1.1%
Cancelled
7 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(49 flights)
  • Tue85%(52 flights)
  • Wed85%(52 flights)
  • Thu83%(48 flights)
  • Fri77%(48 flights)
  • Sat95%(57 flights)
  • Sun85%(52 flights)
On-time by departure window
  • 3–6 AM97%(126 flights)
  • 6–9 AM98%(51 flights)
  • 9 AM–12 PM92%(50 flights)
  • 12–3 PM76%(80 flights)
  • 3–6 PM52%(50 flights)
  • 6–9 PM—(1 flights)
On-time trend by month
100%
May

Jun 83% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%42
July 202580%49
August 202581%36
September 202591%34
October 202554%37
November 2025100%24
December 202593%27
January 202686%29
February 202683%18
April 2026100%24
May 2026100%32
Departures on time
83%
Diverted
0%
Flights flown
358
Months covered
12

Keep nerding

Based on 362 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.