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Flight Reliability

WN 1660 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1660 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

71%
Arrive within 15 minutes
13 min
Average arrival delay
2.6%
Cancelled
2 min early
Median arrival delay

Based on 459 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon57%(68 flights)
  • Tue86%(64 flights)
  • Wed85%(61 flights)
  • Thu64%(66 flights)
  • Fri58%(66 flights)
  • Sat81%(47 flights)
  • Sun70%(74 flights)
On-time by departure window
  • 6–9 AM93%(112 flights)
  • 9 AM–12 PM87%(86 flights)
  • 12–3 PM69%(26 flights)
  • 3–6 PM49%(86 flights)
  • 6–9 PM55%(108 flights)
  • 9 PM–12 AM64%(28 flights)
On-time trend by month
79%
May

Jun 41% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202541%66
July 202560%65
August 202566%35
September 202576%29
October 202581%31
November 202582%28
December 202554%37
January 202692%25
February 2026100%26
March 202680%30
April 202694%36
May 202679%38
Departures on time
67%
Diverted
0.2%
Flights flown
446
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.