How often is WN1551 on time?

Across 50 flights on DEN → PHX from 2026-04-07 to 2026-06-03, WN1551 arrived within 15 minutes of schedule 58% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +57 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

• WN1551 on DEN → ICT (27 flights)
• WN1551 on HOU → DEN (24 flights)
• WN1551 on ROC → BWI (33 flights)
• WN1551 on PBI → BNA (47 flights)
• WN1551 on LGB → HOU (11 flights)
• WN1551 on LAS → BUR (59 flights)
• WN1551 on SEA → LAS (24 flights)
• WN1551 on MAF → LAS (16 flights)
• WN1551 on HOU → MSY (1 flights)
• WN1551 on LGA → MDW (19 flights)
• WN1551 on MDW → PHX (9 flights)
• WN1551 on BNA → MDW (4 flights)
• WN1551 on DAL → SAT (33 flights)
• WN1551 on PHX → BHM (24 flights)
• WN1551 on BNA → DAL (7 flights)
• WN1551 on DEN → BUR (35 flights)
• WN1551 on TPA → DCA (10 flights)
• WN1551 on CMH → DEN (10 flights)
• WN1551 on DCA → CMH (10 flights)

Related

• All Southwest Airlines flights on DEN → PHX
• Compare airlines on DEN → PHX
• Southwest Airlines on the return, PHX → DEN