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Flight Reliability

WN 3745 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3745 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

71%
Arrive within 15 minutes
13 min
Average arrival delay
0.4%
Cancelled
2 min
Median arrival delay

Based on 284 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(35 flights)
  • Tue66%(44 flights)
  • Wed79%(42 flights)
  • Thu76%(38 flights)
  • Fri77%(44 flights)
  • Sat70%(43 flights)
  • Sun60%(37 flights)
On-time by departure window
  • 6–9 AM100%(18 flights)
  • 9 AM–12 PM69%(16 flights)
  • 12–3 PM78%(71 flights)
  • 3–6 PM78%(109 flights)
  • 6–9 PM44%(61 flights)
  • 9 PM–12 AM—(8 flights)
On-time trend by month
39%
May

Jun 78% → May 39% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%23
July 202578%27
August 202566%29
September 202583%30
October 202594%31
November 202574%19
December 202577%17
March 202661%36
April 202669%29
May 202639%31
Departures on time
69%
Diverted
0%
Flights flown
283
Months covered
12

Keep nerding

Based on 284 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.