How often is WN1538 on time?

Across 24 flights on SAN → STL from 2026-04-09 to 2026-06-01, WN1538 arrived within 15 minutes of schedule 43% of the time. The median arrival delay was +20 min, and the worst 10% of flights arrived +70 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

• WN1538 on DEN → GEG (19 flights)
• WN1538 on SNA → DEN (16 flights)
• WN1538 on SJC → SNA (4 flights)
• WN1538 on SNA → DAL (4 flights)
• WN1538 on DAL → PVD (4 flights)
• WN1538 on DAL → MDW (34 flights)
• WN1538 on SAN → TUS (7 flights)
• WN1538 on TUS → DAL (7 flights)
• WN1538 on ICT → LAS (23 flights)
• WN1538 on MDW → ICT (28 flights)
• WN1538 on SNA → SJC (10 flights)
• WN1538 on PHX → LAS (5 flights)
• WN1538 on ICT → PHX (5 flights)
• WN1538 on LAS → SNA (5 flights)
• WN1538 on DEN → MSY (70 flights)
• WN1538 on ATL → DCA (63 flights)
• WN1538 on DCA → PVD (5 flights)
• WN1538 on PVD → MCO (5 flights)
• WN1538 on ELP → HOU (1 flights)
• WN1538 on LAS → FAT (22 flights)
• WN1538 on STL → HOU (24 flights)
• WN1538 on HOU → BUR (24 flights)
• WN1538 on BWI → STL (16 flights)
• WN1538 on LAS → CMH (5 flights)
• WN1538 on ATL → AUS (1 flights)
• WN1538 on BNA → ATL (1 flights)

Related

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