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Flight Reliability

WN 735 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 735 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

78%
Arrive within 15 minutes
5 min
Average arrival delay
1.3%
Cancelled
5 min early
Median arrival delay

Based on 395 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon67%(57 flights)
  • Tue85%(53 flights)
  • Wed90%(50 flights)
  • Thu72%(57 flights)
  • Fri80%(60 flights)
  • Sat81%(59 flights)
  • Sun70%(54 flights)
On-time by departure window
  • 9 AM–12 PM92%(101 flights)
  • 12–3 PM72%(94 flights)
  • 3–6 PM77%(74 flights)
  • 6–9 PM66%(87 flights)
  • 9 PM–12 AM82%(34 flights)
On-time trend by month
72%
May

Jun 73% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202583%30
August 202589%27
September 202596%25
October 202580%30
November 202575%32
December 202574%38
January 202674%19
February 202640%15
March 202679%28
April 202684%56
May 202672%60
Departures on time
74%
Diverted
0%
Flights flown
390
Months covered
12

Keep nerding

Based on 395 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.