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Flight Reliability

WN 1917 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1917 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

86%
Arrive within 15 minutes
4 min
Average arrival delay
1.0%
Cancelled
5 min early
Median arrival delay

Based on 388 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(77 flights)
  • Tue75%(40 flights)
  • Wed94%(36 flights)
  • Thu92%(75 flights)
  • Fri87%(79 flights)
  • Sat70%(30 flights)
  • Sun76%(46 flights)
On-time by departure window
  • 3–6 AM94%(31 flights)
  • 6–9 AM83%(12 flights)
  • 9 AM–12 PM89%(101 flights)
  • 12–3 PM85%(152 flights)
  • 3–6 PM75%(69 flights)
  • 6–9 PM100%(18 flights)
On-time trend by month
83%
May

Aug 92% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202592%78
September 202591%88
October 202591%53
November 2025100%24
December 202557%28
January 202665%23
February 202690%19
March 202646%11
April 202689%26
May 202683%30
Departures on time
75%
Diverted
0.3%
Flights flown
383
Months covered
11

Keep nerding

Based on 388 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.