Skip to content
WanderNerd
Check a flight

Flight Reliability

WN 734 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 734 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

77%
Arrive within 15 minutes
7 min
Average arrival delay
2.3%
Cancelled
5 min early
Median arrival delay

Based on 429 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(58 flights)
  • Tue69%(73 flights)
  • Wed79%(80 flights)
  • Thu71%(61 flights)
  • Fri82%(62 flights)
  • Sat93%(42 flights)
  • Sun80%(40 flights)
On-time by departure window
  • 3–6 AM100%(17 flights)
  • 6–9 AM97%(65 flights)
  • 9 AM–12 PM79%(34 flights)
  • 12–3 PM83%(112 flights)
  • 3–6 PM68%(53 flights)
  • 6–9 PM60%(102 flights)
  • 9 PM–12 AM73%(33 flights)
On-time trend by month
46%
May

Jun 64% → May 46% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%22
July 202550%22
August 202593%29
September 202593%30
October 202580%49
November 202593%30
December 202590%29
January 202683%41
February 202694%34
March 202670%33
April 202677%47
May 202646%50
Departures on time
72%
Diverted
0.7%
Flights flown
416
Months covered
12

Keep nerding

Based on 429 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.