How often is WN3438 on time?

Across 22 flights on LAS → STL from 2025-10-02 to 2025-10-31, WN3438 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +16 min, and the worst 10% of flights arrived +48 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

• WN3438 on RIC → BWI (27 flights)
• WN3438 on DEN → SAN (42 flights)
• WN3438 on DCA → MSY (40 flights)
• WN3438 on MKE → DCA (31 flights)
• WN3438 on MSY → DEN (24 flights)
• WN3438 on CLE → BNA (23 flights)
• WN3438 on PHX → CLE (25 flights)
• WN3438 on SMF → PHX (15 flights)
• WN3438 on LAS → CMH (46 flights)
• WN3438 on LAS → SMF (18 flights)
• WN3438 on BWI → MYR (9 flights)
• WN3438 on BNA → ECP (4 flights)
• WN3438 on MYR → BNA (4 flights)
• WN3438 on LBB → DAL (57 flights)
• WN3438 on DAL → LAS (7 flights)
• WN3438 on DAL → SAT (8 flights)
• WN3438 on SAN → PHX (8 flights)
• WN3438 on SAT → SAN (8 flights)
• WN3438 on LAS → BUR (1 flights)
• WN3438 on SAN → SFO (5 flights)

Related

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