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Flight Reliability

WN 1039 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1039 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

81%
Arrive within 15 minutes
5 min
Average arrival delay
0%
Cancelled
6 min early
Median arrival delay

Based on 396 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(65 flights)
  • Tue83%(58 flights)
  • Wed76%(58 flights)
  • Thu77%(65 flights)
  • Fri80%(60 flights)
  • Sat89%(44 flights)
  • Sun76%(46 flights)
On-time by departure window
  • 6–9 AM92%(114 flights)
  • 9 AM–12 PM74%(42 flights)
  • 12–3 PM85%(73 flights)
  • 3–6 PM70%(74 flights)
  • 6–9 PM74%(38 flights)
  • 9 PM–12 AM75%(55 flights)
On-time trend by month
65%
May

Jun 81% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%32
July 202587%31
August 202584%38
September 202592%39
October 202568%31
November 202590%41
December 202566%41
January 202697%31
February 202689%28
March 202671%31
April 202670%27
May 202665%26
Departures on time
77%
Diverted
0%
Flights flown
396
Months covered
12

Keep nerding

Based on 396 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.