To find cheap flights from Logan International Airport (BOS) to Daniel K. Inouye International Airport (HNL) in September, search flexible date calendars and set fare alerts 6–12 weeks ahead. Target Tuesday–Thursday departures, consider late-night or red-eye segments, and compare one-stop connections through Los Angeles (LAX), San Francisco (SFO), or Seattle (SEA) where competition drives lower fares. Use a mix of primary keywords (Boston to Honolulu flights), secondary keywords (cheap BOS HNL tickets), and LSI terms (shoulder season Hawaii deals, midweek airfare savings) in searches to surface targeted sales—book when a 10–20% dip appears versus average fares.