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WanderNerd

Flight Reliability

WN 3830 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3830 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

75%
Arrive within 15 minutes
10 min
Average arrival delay
0%
Cancelled
2 min early
Median arrival delay

Based on 166 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(32 flights)
  • Tue(7 flights)
  • Wed(5 flights)
  • Thu87%(30 flights)
  • Fri71%(34 flights)
  • Sat82%(27 flights)
  • Sun53%(30 flights)
On-time by departure window
  • 3–6 AM100%(31 flights)
  • 6–9 AM78%(18 flights)
  • 9 AM–12 PM100%(12 flights)
  • 12–3 PM63%(38 flights)
  • 3–6 PM46%(11 flights)
  • 6–9 PM80%(10 flights)
  • 9 PM–12 AM64%(45 flights)
On-time trend by month
100%
May

Jun 62% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%21
July 202555%20
October 202582%22
November 202550%16
December 202562%13
March 202674%23
April 202695%21
May 2026100%22
Departures on time
72%
Diverted
0.6%
Flights flown
165
Months covered
10

Based on 166 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.