WN4859 HOU → MIA

Southwest Airlines · Houston, TX to Miami, FL · 20 flights observed, 2026-06-04 to 2026-06-29 · 955 mi

This flight has been on time less than half the time (25%) — expect a real chance of a delay.

WN4859 covers more than one route in the data window — the stats below are for HOU → MIA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
25%
Median delay
+30 min
90th percentile
+68 min
Cancellation rate
0%

How often is WN4859 on time?

Across 20 flights on HOU → MIA from 2026-06-04 to 2026-06-29, WN4859 arrived within 15 minutes of schedule 25% of the time. The median arrival delay was +30 min, and the worst 10% of flights arrived +68 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time525%
16-30 min525%
31-60 min735%
61-120 min210%
2+ hrs15%

Performance by month

MonthFlightsOn-timeAvg delay
2026-062025%+36 min

Performance by day of week

DayFlightsOn-time
Mon450%
TueNo data—
WedNo data—
Thu40%
Fri40%
Sat425%
Sun450%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…