How often is WN991 on time?

Across 42 flights on HOU → STL from 2025-08-05 to 2025-10-01, WN991 arrived within 15 minutes of schedule 98% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived -3 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

• WN991 on BWI → ONT (7 flights)
• WN991 on BNA → LAX (11 flights)
• WN991 on LAX → LAS (11 flights)
• WN991 on MDW → HOU (4 flights)
• WN991 on PHX → SAT (4 flights)
• WN991 on LAX → MDW (58 flights)
• WN991 on BNA → MDW (23 flights)
• WN991 on BWI → PVD (53 flights)
• WN991 on PVD → MCO (14 flights)
• WN991 on PVD → TPA (3 flights)
• WN991 on MDW → AUS (46 flights)
• WN991 on DEN → HOU (17 flights)
• WN991 on BHM → DAL (1 flights)
• WN991 on DAL → SAT (1 flights)
• WN991 on OAK → BUR (31 flights)
• WN991 on ECP → STL (16 flights)
• WN991 on LAX → MSY (34 flights)

Related

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