How often is WN1939 on time?

Across 13 flights on BUF → DEN from 2025-10-02 to 2025-10-30, WN1939 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -16 min, and the worst 10% of flights arrived +24 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

• WN1939 on PHX → TUL (7 flights)
• WN1939 on DEN → MDW (58 flights)
• WN1939 on MDW → DCA (1 flights)
• WN1939 on DEN → MKE (33 flights)
• WN1939 on OAK → SNA (50 flights)
• WN1939 on MDW → ATL (46 flights)
• WN1939 on SFO → MDW (17 flights)
• WN1939 on SMF → MDW (18 flights)
• WN1939 on LAS → PHX (1 flights)
• WN1939 on BWI → BUF (27 flights)
• WN1939 on BUF → BNA (5 flights)
• WN1939 on STL → OMA (42 flights)
• WN1939 on AUS → BNA (8 flights)
• WN1939 on ORF → BWI (35 flights)
• WN1939 on DEN → ORF (10 flights)

Related

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