How often is WN503 on time?

Across 58 flights on HOU → BWI from 2026-04-07 to 2026-06-03, WN503 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +10 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

• WN503 on BNA → DEN (23 flights)
• WN503 on BWI → MDW (4 flights)
• WN503 on CLE → DEN (23 flights)
• WN503 on BNA → RDU (5 flights)
• WN503 on BWI → BOS (10 flights)
• WN503 on RDU → BWI (5 flights)
• WN503 on OAK → LAX (19 flights)
• WN503 on BNA → ECP (8 flights)
• WN503 on ECP → DAL (8 flights)
• WN503 on DAL → OAK (3 flights)
• WN503 on FLL → DAL (3 flights)
• WN503 on DEN → SLC (42 flights)
• WN503 on RNO → LAS (13 flights)
• WN503 on PHX → BUR (23 flights)
• WN503 on SLC → PHX (24 flights)
• WN503 on TUS → DEN (23 flights)
• WN503 on HOU → OKC (1 flights)
• WN503 on SEA → SJC (14 flights)
• WN503 on SJC → SNA (22 flights)
• WN503 on LGB → OAK (4 flights)
• WN503 on PHX → LGB (4 flights)
• WN503 on SMF → SNA (58 flights)
• WN503 on SNA → DEN (24 flights)
• WN503 on AUS → BWI (30 flights)

Related

• All Southwest Airlines flights on HOU → BWI
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• Southwest Airlines on the return, BWI → HOU