How often is AA4639 on time?

Across 19 flights on LGA → BUF from 2025-12-18 to 2026-01-05, AA4639 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +22 min or later. 21% 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

• AA4639 on BNA → RDU (105 flights)
• AA4639 on DCA → PVD (38 flights)
• AA4639 on DTW → MIA (2 flights)
• AA4639 on MIA → DTW (2 flights)
• AA4639 on ATL → LGA (26 flights)
• AA4639 on LGA → ATL (21 flights)
• AA4639 on ORD → ROC (37 flights)
• AA4639 on DCA → CAE (33 flights)
• AA4639 on RDU → LGA (20 flights)
• AA4639 on STL → PHL (5 flights)

Related

• All American Airlines flights on LGA → BUF
• Compare airlines on LGA → BUF
• American Airlines on the return, BUF → LGA