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Flight Reliability

WN 3773 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3773 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

82%
Arrive within 15 minutes
4 min
Average arrival delay
0.7%
Cancelled
6 min early
Median arrival delay

Based on 276 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(35 flights)
  • Tue97%(38 flights)
  • Wed95%(37 flights)
  • Thu68%(34 flights)
  • Fri92%(37 flights)
  • Sat71%(31 flights)
  • Sun75%(60 flights)
On-time by departure window
  • 6–9 AM99%(67 flights)
  • 9 AM–12 PM91%(54 flights)
  • 12–3 PM85%(72 flights)
  • 3–6 PM—(5 flights)
  • 6–9 PM65%(31 flights)
  • 9 PM–12 AM51%(43 flights)
On-time trend by month
88%
May

Jun 62% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%26
July 202566%29
August 202556%18
September 202571%17
October 202591%53
December 202573%11
March 2026100%27
April 202695%41
May 202688%42
Departures on time
79%
Diverted
0.7%
Flights flown
272
Months covered
11

Keep nerding

Based on 276 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.