How often is WN559 on time?

Across 25 flights on BOS → STL from 2026-01-11 to 2026-03-02, WN559 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +27 min or later. 12% 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

• WN559 on TPA → MCI (27 flights)
• WN559 on BNA → CLE (58 flights)
• WN559 on MDW → MHT (33 flights)
• WN559 on HOU → MCI (59 flights)
• WN559 on BNA → DEN (1 flights)
• WN559 on PWM → BWI (9 flights)
• WN559 on BNA → DCA (20 flights)
• WN559 on SAT → BNA (13 flights)
• WN559 on BOS → BNA (50 flights)
• WN559 on ATL → LAS (1 flights)
• WN559 on LAS → LAX (1 flights)
• WN559 on DEN → OAK (1 flights)
• WN559 on MDW → MEM (15 flights)
• WN559 on ELP → HOU (5 flights)

Related

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