How often is WN1511 on time?

Across 5 flights on STL → BWI from 2026-03-08 to 2026-04-05, WN1511 arrived within 15 minutes of schedule 20% of the time. The median arrival delay was +61 min, and the worst 10% of flights arrived +139 min or later. 0% 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

• WN1511 on LAS → SJC (4 flights)
• WN1511 on BOI → LAS (4 flights)
• WN1511 on PHX → SLC (4 flights)
• WN1511 on DAL → DEN (58 flights)
• WN1511 on BWI → FLL (33 flights)
• WN1511 on DAL → MSY (58 flights)
• WN1511 on MCI → DAL (14 flights)
• WN1511 on CMH → DAL (8 flights)
• WN1511 on DCA → DAL (3 flights)
• WN1511 on BUR → OAK (42 flights)
• WN1511 on HOU → BHM (4 flights)
• WN1511 on DEN → TUL (1 flights)
• WN1511 on DEN → PHL (25 flights)
• WN1511 on STL → LAS (58 flights)
• WN1511 on LAS → SBA (24 flights)
• WN1511 on LAS → SMF (1 flights)
• WN1511 on SJC → BUR (34 flights)

Related

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