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Flight Reliability

WN 997 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 997 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

80%
Arrive within 15 minutes
5 min
Average arrival delay
0%
Cancelled
4 min early
Median arrival delay

Based on 349 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(49 flights)
  • Tue80%(45 flights)
  • Wed81%(43 flights)
  • Thu81%(48 flights)
  • Fri74%(49 flights)
  • Sat83%(63 flights)
  • Sun70%(50 flights)
On-time by departure window
  • 3–6 AM100%(25 flights)
  • 6–9 AM90%(62 flights)
  • 9 AM–12 PM86%(29 flights)
  • 12–3 PM78%(89 flights)
  • 3–6 PM69%(48 flights)
  • 6–9 PM75%(87 flights)
  • 9 PM–12 AM—(7 flights)
On-time trend by month
57%
May

Jun 90% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%20
July 2025100%17
August 202583%42
September 202581%42
October 202581%32
November 202576%33
December 202579%33
January 202691%11
February 202667%21
March 202693%28
April 202676%33
May 202657%35
Departures on time
74%
Diverted
0.6%
Flights flown
347
Months covered
12

Keep nerding

Based on 349 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.