Skip to content
WanderNerd

Flight Reliability

WN 1730 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1730 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

68%
Arrive within 15 minutes
14 min
Average arrival delay
1.2%
Cancelled
1 min
Median arrival delay

Based on 337 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(45 flights)
  • Tue77%(48 flights)
  • Wed67%(48 flights)
  • Thu67%(46 flights)
  • Fri68%(47 flights)
  • Sat71%(48 flights)
  • Sun57%(49 flights)
On-time by departure window
  • 6–9 AM95%(61 flights)
  • 9 AM–12 PM86%(56 flights)
  • 12–3 PM70%(53 flights)
  • 3–6 PM63%(40 flights)
  • 6–9 PM52%(85 flights)
  • 9 PM–12 AM39%(36 flights)
On-time trend by month
67%
May

Jun 52% → May 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202552%31
July 202552%31
August 202565%23
September 202559%22
October 202586%22
November 202595%40
December 202587%37
January 202668%31
February 202669%26
March 202640%30
April 202670%20
May 202667%18
Departures on time
66%
Diverted
0.6%
Flights flown
331
Months covered
12

Based on 337 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.