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WanderNerd

Flight Reliability

WN 1734 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1734 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

66%
Arrive within 15 minutes
17 min
Average arrival delay
1.3%
Cancelled
3 min
Median arrival delay

Based on 297 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon61%(44 flights)
  • Tue62%(37 flights)
  • Wed77%(39 flights)
  • Thu69%(45 flights)
  • Fri57%(47 flights)
  • Sat84%(43 flights)
  • Sun53%(38 flights)
On-time by departure window
  • 6–9 AM84%(75 flights)
  • 9 AM–12 PM90%(10 flights)
  • 12–3 PM46%(59 flights)
  • 3–6 PM64%(126 flights)
  • 6–9 PM61%(23 flights)
On-time trend by month
57%
May

Jun 57% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%30
July 202538%29
August 202561%23
September 202573%22
October 202579%19
November 202589%28
December 202581%31
February 202682%11
March 202665%31
April 202660%30
May 202657%30
Departures on time
68%
Diverted
0%
Flights flown
293
Months covered
12

Based on 297 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.