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Flight Reliability

WN 266 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 266 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

77%
Arrive within 15 minutes
8 min
Average arrival delay
0.2%
Cancelled
4 min early
Median arrival delay

Based on 459 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(68 flights)
  • Tue83%(69 flights)
  • Wed86%(64 flights)
  • Thu81%(58 flights)
  • Fri62%(66 flights)
  • Sat90%(62 flights)
  • Sun68%(71 flights)
On-time by departure window
  • 6–9 AM97%(34 flights)
  • 9 AM–12 PM91%(93 flights)
  • 12–3 PM72%(151 flights)
  • 3–6 PM79%(61 flights)
  • 6–9 PM68%(118 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
92%
May

Jun 76% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%45
July 202574%42
August 202568%19
September 2025100%13
October 202578%27
November 202571%49
December 202565%83
January 202678%40
February 202675%28
March 202677%35
April 2026100%39
May 202692%38
Departures on time
74%
Diverted
0%
Flights flown
458
Months covered
12

Keep nerding

Based on 459 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.