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Flight Reliability

WN 1691 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1691 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
11 min
Average arrival delay
2.5%
Cancelled
1 min early
Median arrival delay

Based on 446 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(70 flights)
  • Tue76%(72 flights)
  • Wed78%(72 flights)
  • Thu73%(69 flights)
  • Fri69%(75 flights)
  • Sat71%(31 flights)
  • Sun52%(46 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM86%(43 flights)
  • 12–3 PM73%(74 flights)
  • 3–6 PM67%(173 flights)
  • 6–9 PM71%(127 flights)
  • 9 PM–12 AM71%(17 flights)
On-time trend by month
52%
May

Jun 69% → May 52% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%32
July 202573%30
August 202577%22
September 202582%22
October 202582%39
November 202582%34
December 202567%33
January 202677%44
February 202676%33
March 202669%83
April 202650%36
May 202652%27
Departures on time
68%
Diverted
0%
Flights flown
435
Months covered
12

Keep nerding

Based on 446 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.