How often is WN121 on time?

Across 8 flights on SDF → BWI from 2026-04-11 to 2026-05-30, WN121 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +78 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

• WN121 on AUS → IND (7 flights)
• WN121 on ELP → AUS (7 flights)
• WN121 on IND → MCO (19 flights)
• WN121 on LAS → ELP (7 flights)
• WN121 on HOU → DAL (4 flights)
• WN121 on DAL → MIA (4 flights)
• WN121 on MCI → FLL (4 flights)
• WN121 on LAS → LAX (42 flights)
• WN121 on TPA → SDF (8 flights)
• WN121 on TYS → DEN (1 flights)
• WN121 on DEN → HDN (1 flights)
• WN121 on BNA → SAV (25 flights)
• WN121 on SAV → HOU (10 flights)
• WN121 on ABQ → HOU (58 flights)
• WN121 on HOU → MCO (8 flights)
• WN121 on PHX → BOI (59 flights)
• WN121 on DAL → PHX (5 flights)
• WN121 on MCO → HOU (4 flights)
• WN121 on BWI → MHT (1 flights)
• WN121 on PHX → PDX (1 flights)
• WN121 on SMF → SNA (9 flights)
• WN121 on STL → DEN (1 flights)
• WN121 on BWI → DEN (21 flights)
• WN121 on SAT → SAN (1 flights)
• WN121 on PHX → OKC (25 flights)

Related

• All Southwest Airlines flights on SDF → BWI
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• Southwest Airlines on the return, BWI → SDF