WN978 HOU → BWI

Southwest Airlines · Houston, TX to Baltimore, MD · 45 flights observed, 2025-11-02 to 2026-01-05 · 1,246 mi

WN978 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
95%
Median delay
-3 min
90th percentile
+7 min
Cancellation rate
2%

How often is WN978 on time?

Across 45 flights on HOU → BWI from 2025-11-02 to 2026-01-05, WN978 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +7 min or later. 2% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time4295%
16-30 min12%
31-60 min00%
61-120 min12%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112295%+1 min
2025-122095%-8 min
2026-012100%-4 min

Performance by day of week

DayFlightsOn-time
Mon7100%
Tue6100%
Wed888%
Thu888%
Fri6100%
Sat3100%
Sun6100%

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