Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 1739 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1739 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

84%
Arrive within 15 minutes
2 min
Average arrival delay
1.1%
Cancelled
7 min early
Median arrival delay

Based on 436 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(61 flights)
  • Tue89%(72 flights)
  • Wed97%(71 flights)
  • Thu72%(64 flights)
  • Fri84%(63 flights)
  • Sat81%(52 flights)
  • Sun81%(47 flights)
On-time by departure window
  • 6–9 AM95%(98 flights)
  • 9 AM–12 PM91%(99 flights)
  • 12–3 PM82%(61 flights)
  • 3–6 PM80%(98 flights)
  • 6–9 PM77%(39 flights)
  • 9 PM–12 AM63%(35 flights)
On-time trend by month
92%
May

Jun 76% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%33
July 202573%41
August 202593%30
September 202597%30
October 202568%40
November 202583%29
December 202581%31
January 202698%53
February 202677%47
March 202682%22
April 202694%35
May 202692%39
Departures on time
80%
Diverted
0.2%
Flights flown
430
Months covered
12

Keep nerding

Based on 436 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.