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Flight Reliability

WN 739 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 739 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

79%
Arrive within 15 minutes
5 min
Average arrival delay
0.6%
Cancelled
4 min early
Median arrival delay

Based on 517 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(67 flights)
  • Tue87%(91 flights)
  • Wed82%(90 flights)
  • Thu75%(63 flights)
  • Fri78%(60 flights)
  • Sat81%(57 flights)
  • Sun71%(86 flights)
On-time by departure window
  • 3–6 AM100%(16 flights)
  • 6–9 AM92%(106 flights)
  • 9 AM–12 PM89%(88 flights)
  • 12–3 PM76%(76 flights)
  • 3–6 PM73%(191 flights)
  • 6–9 PM46%(37 flights)
On-time trend by month
58%
May

Jun 87% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%47
July 202585%61
August 202573%48
September 202567%49
October 202577%35
November 202577%53
December 202586%70
January 202688%32
February 202693%27
March 202695%19
April 202670%33
May 202658%40
Departures on time
76%
Diverted
0%
Flights flown
514
Months covered
12

Keep nerding

Based on 517 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.