How often is WN551 on time?

Across 20 flights on LAS → ONT from 2025-07-01 to 2025-08-03, WN551 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +15 min, and the worst 10% of flights arrived +45 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

• WN551 on SMF → EUG (7 flights)
• WN551 on BNA → LAX (20 flights)
• WN551 on LAX → SMF (4 flights)
• WN551 on BOS → BWI (57 flights)
• WN551 on AUS → BOS (32 flights)
• WN551 on BWI → MCO (24 flights)
• WN551 on BWI → RDU (7 flights)
• WN551 on ELP → DAL (1 flights)
• WN551 on DAL → AUS (1 flights)
• WN551 on ATL → LAS (33 flights)
• WN551 on TPA → AUS (42 flights)
• WN551 on BNA → MCO (11 flights)
• WN551 on MCI → DEN (5 flights)
• WN551 on AUS → ECP (35 flights)
• WN551 on STL → ATL (28 flights)
• WN551 on DAL → LAS (1 flights)
• WN551 on HOU → LAS (31 flights)
• WN551 on AUS → DEN (42 flights)
• WN551 on DAL → SAN (7 flights)
• WN551 on SJC → GEG (8 flights)
• WN551 on ATL → HOU (1 flights)
• WN551 on DAL → PHX (15 flights)
• WN551 on MCO → LAS (10 flights)
• WN551 on PHX → BUR (1 flights)

Related

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