Finding cheap flights from Hartsfield-Jackson Atlanta International Airport (ATL) to Daniel K. Inouye International Airport (HNL) in December requires flexibility and early planning. Book 2–4 months in advance for the best holiday fares; consider flying early December rather than the days around Christmas and New Year’s. Search for one-stop itineraries through Los Angeles (LAX), San Francisco (SFO), or Seattle (SEA) which frequently yield lower prices than seasonal nonstop flights. Use fare-tracking tools like Google Flights, Skyscanner, and Kayak, set price alerts, and compare booking direct with airlines vs. OTAs. Look for midweek departures (Tuesday–Thursday) and red-eye options to reduce fares. If flexible, check nearby departure cities or nearby airports for competitive routing — sometimes flights from Charlotte or Jacksonville combined with a low-cost transcontinental segment can lower total cost. Book early for surfboard or sports equipment allowances, as carriers may have limited capacity for oversized items during December.