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WanderNerd

Flight Reliability

WN 4770 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 4770 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

70%
Arrive within 15 minutes
10 min
Average arrival delay
0.8%
Cancelled
5 min early
Median arrival delay

Based on 132 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon63%(19 flights)
  • Tue88%(24 flights)
  • Wed91%(22 flights)
  • Thu47%(17 flights)
  • Fri65%(20 flights)
  • Sat(8 flights)
  • Sun52%(21 flights)
On-time by departure window
  • 6–9 AM89%(73 flights)
  • 12–3 PM(1 flights)
  • 3–6 PM(9 flights)
  • 6–9 PM40%(48 flights)
On-time trend by month
91%
Mar

Jun 46% → Mar 91% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202546%22
July 202563%27
January 202678%27
February 202689%28
March 202691%11
Departures on time
70%
Diverted
0%
Flights flown
131
Months covered
9

Based on 132 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.