How often is WN3520 on time?

Across 3 flights on DEN → STL from 2026-06-22 to 2026-06-26, WN3520 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +19 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

• WN3520 on SJC → BUR (7 flights)
• WN3520 on BNA → LAX (1 flights)
• WN3520 on LAX → LAS (1 flights)
• WN3520 on MTJ → DEN (58 flights)
• WN3520 on AUS → DEN (20 flights)
• WN3520 on DAL → AUS (20 flights)
• WN3520 on MDW → MKE (23 flights)
• WN3520 on MKE → DAL (28 flights)
• WN3520 on MSY → DAL (5 flights)
• WN3520 on TPA → BNA (1 flights)
• WN3520 on CLT → STL (3 flights)
• WN3520 on DAL → SAN (17 flights)
• WN3520 on SAT → DAL (18 flights)
• WN3520 on MCI → LAS (13 flights)
• WN3520 on BNA → SJU (5 flights)
• WN3520 on PHX → SNA (28 flights)
• WN3520 on ABQ → PHX (4 flights)
• WN3520 on DEN → ABQ (4 flights)
• WN3520 on SLC → DEN (4 flights)
• WN3520 on DAL → BNA (1 flights)
• WN3520 on TPA → SAT (1 flights)
• WN3520 on SDF → TPA (9 flights)
• WN3520 on TPA → FLL (13 flights)
• WN3520 on LAS → AUS (1 flights)
• WN3520 on MCO → MIA (8 flights)
• WN3520 on SMF → ONT (34 flights)
• WN3520 on ONT → PHX (10 flights)

Related

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