How often is WN378 on time?

Across 5 flights on SJU → AUS from 2025-11-22 to 2026-01-03, WN378 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +24 min, and the worst 10% of flights arrived +60 min or later. 20% of flights were cancelled.

Delay distribution

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

Performance by month

Performance by day of week

Other routes

• WN378 on AUS → PHX (23 flights)
• WN378 on DEN → HOU (4 flights)
• WN378 on DEN → BOS (57 flights)
• WN378 on SLC → LAS (25 flights)
• WN378 on DEN → LGB (8 flights)
• WN378 on DEN → LGA (53 flights)
• WN378 on STL → ATL (42 flights)
• WN378 on DCA → OMA (13 flights)
• WN378 on BWI → SJU (1 flights)
• WN378 on LAX → SMF (9 flights)
• WN378 on SMF → DEN (2 flights)
• WN378 on FLL → MDW (8 flights)
• WN378 on BNA → PHL (39 flights)
• WN378 on BUR → SMF (1 flights)
• WN378 on PDX → SMF (25 flights)
• WN378 on BWI → ABQ (10 flights)

Related

• All Southwest Airlines flights on SJU → AUS
• Compare airlines on SJU → AUS
• Southwest Airlines on the return, AUS → SJU