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Flight Reliability

WN 3834 · Southwest Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and WN 3834 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

77%
Arrive within 15 minutes
5 min
Average arrival delay
1.0%
Cancelled
5 min early
Median arrival delay

Based on 303 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(52 flights)
  • Tue79%(43 flights)
  • Wed79%(42 flights)
  • Thu73%(52 flights)
  • Fri68%(53 flights)
  • Sat96%(25 flights)
  • Sun91%(33 flights)
On-time by departure window
  • 3–6 AM97%(35 flights)
  • 6–9 AM93%(83 flights)
  • 9 AM–12 PM81%(43 flights)
  • 12–3 PM47%(32 flights)
  • 3–6 PM83%(40 flights)
  • 6–9 PM73%(41 flights)
  • 9 PM–12 AM31%(26 flights)
On-time trend by month
83%
May

Jun 48% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%21
July 202557%23
August 202586%29
September 202597%30
October 202563%46
November 2025100%26
December 202579%29
March 202674%50
April 202688%24
May 202683%18
Departures on time
70%
Diverted
0%
Flights flown
300
Months covered
11

Keep nerding

Based on 303 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.