WN3129 HOU → BWI

Southwest Airlines · Houston, TX to Baltimore, MD · 33 flights observed, 2026-03-05 to 2026-04-06 · 1,246 mi

This flight has been on time less than half the time (36%) — expect a real chance of a delay.

WN3129 covers more than one route in the data window — the stats below are for HOU → BWI, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
36%
Median delay
+22 min
90th percentile
+91 min
Cancellation rate
0%

How often is WN3129 on time?

Across 33 flights on HOU → BWI from 2026-03-05 to 2026-04-06, WN3129 arrived within 15 minutes of schedule 36% of the time. The median arrival delay was +22 min, and the worst 10% of flights arrived +91 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1236%
16-30 min824%
31-60 min721%
61-120 min412%
2+ hrs26%

Performance by month

MonthFlightsOn-timeAvg delay
2026-032733%+39 min
2026-04650%+26 min

Performance by day of week

DayFlightsOn-time
Mon540%
Tue475%
Wed475%
Thu50%
Fri520%
Sat520%
Sun540%

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