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Flight Reliability

WN 1477 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 1477 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

84%
Arrive within 15 minutes
1 min
Average arrival delay
0.9%
Cancelled
7 min early
Median arrival delay

Based on 346 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(52 flights)
  • Tue88%(43 flights)
  • Wed89%(45 flights)
  • Thu82%(50 flights)
  • Fri84%(44 flights)
  • Sat85%(61 flights)
  • Sun78%(46 flights)
On-time by departure window
  • 3–6 AM97%(31 flights)
  • 6–9 AM97%(77 flights)
  • 9 AM–12 PM92%(38 flights)
  • 12–3 PM79%(65 flights)
  • 3–6 PM79%(71 flights)
  • 6–9 PM66%(59 flights)
On-time trend by month
73%
May

Jun 91% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%33
July 2025100%30
August 202585%20
September 202586%21
October 202597%38
November 202578%41
December 202578%32
January 202690%30
February 202686%21
March 202650%18
April 202678%27
May 202673%30
Departures on time
76%
Diverted
0.6%
Flights flown
341
Months covered
12

Keep nerding

Based on 346 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.