How often is WN527 on time?

Across 33 flights on BOS → MDW from 2026-03-05 to 2026-04-06, WN527 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +25 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

• WN527 on ONT → SMF (7 flights)
• WN527 on MCI → ATL (12 flights)
• WN527 on PNS → DEN (4 flights)
• WN527 on BNA → PNS (4 flights)
• WN527 on DEN → LGB (4 flights)
• WN527 on LAX → PHX (1 flights)
• WN527 on BNA → JAX (58 flights)
• WN527 on HNL → KOA (55 flights)
• WN527 on BNA → CHS (1 flights)
• WN527 on IND → MCO (5 flights)
• WN527 on AUS → TUL (1 flights)
• WN527 on JAX → AUS (1 flights)
• WN527 on TUL → PHX (1 flights)
• WN527 on AUS → BNA (25 flights)
• WN527 on BUR → AUS (4 flights)
• WN527 on CMH → STL (42 flights)
• WN527 on STL → MCI (15 flights)
• WN527 on PHX → ELP (1 flights)
• WN527 on ORD → DEN (35 flights)
• WN527 on DEN → FAT (5 flights)

Related

• All Southwest Airlines flights on BOS → MDW
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• Southwest Airlines on the return, MDW → BOS