How often is WN2521 on time?

Across 28 flights on BWI → SLC from 2026-01-06 to 2026-03-04, WN2521 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +33 min or later. 4% 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

• WN2521 on PHX → MDW (23 flights)
• WN2521 on SAN → PHX (12 flights)
• WN2521 on RDU → FLL (4 flights)
• WN2521 on KOA → HNL (58 flights)
• WN2521 on LAS → ELP (5 flights)
• WN2521 on MCO → BWI (50 flights)
• WN2521 on DEN → MCO (94 flights)
• WN2521 on BHM → MDW (24 flights)
• WN2521 on LAS → BHM (24 flights)
• WN2521 on DEN → STL (15 flights)
• WN2521 on SJC → BUR (29 flights)
• WN2521 on OAK → BUR (5 flights)
• WN2521 on CMH → MDW (1 flights)

Related

• All Southwest Airlines flights on BWI → SLC
• Compare airlines on BWI → SLC
• Southwest Airlines on the return, SLC → BWI