How often is WN4255 on time?

Across 19 flights on AUS → HOU from 2026-06-04 to 2026-06-30, WN4255 arrived within 15 minutes of schedule 21% of the time. The median arrival delay was +34 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

• WN4255 on SJC → ONT (58 flights)
• WN4255 on PHX → SAT (15 flights)
• WN4255 on SMF → PHX (23 flights)
• WN4255 on PHX → LGB (8 flights)
• WN4255 on MDW → MCO (1 flights)
• WN4255 on BNA → DAL (1 flights)
• WN4255 on TPA → SAT (59 flights)
• WN4255 on PVD → TPA (24 flights)
• WN4255 on SAT → DAL (24 flights)
• WN4255 on HOU → LBB (1 flights)
• WN4255 on MDW → HOU (1 flights)
• WN4255 on PHX → SJC (17 flights)
• WN4255 on HOU → PHX (4 flights)
• WN4255 on SEA → HOU (50 flights)

Related

• All Southwest Airlines flights on AUS → HOU
• Compare airlines on AUS → HOU
• Southwest Airlines on the return, HOU → AUS