How often is WN4429 on time?

Across 5 flights on STL → SJU from 2025-11-22 to 2026-01-03, WN4429 arrived within 15 minutes of schedule 25% of the time. The median arrival delay was +16 min, and the worst 10% of flights arrived +41 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

• WN4429 on DEN → BNA (23 flights)
• WN4429 on LAX → DEN (26 flights)
• WN4429 on SFO → LAX (1 flights)
• WN4429 on SFO → DEN (20 flights)
• WN4429 on PHX → RNO (1 flights)
• WN4429 on DEN → DSM (55 flights)
• WN4429 on MCI → MDW (1 flights)
• WN4429 on MCO → DEN (1 flights)
• WN4429 on SJC → SEA (4 flights)
• WN4429 on LGA → MDW (58 flights)
• WN4429 on MDW → SJC (24 flights)
• WN4429 on STL → SAT (30 flights)
• WN4429 on SAT → LAS (5 flights)

Related

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