Flights from West Coast cities (like Los Angeles or Seattle) are significantly cheaper, often starting around $490 round-trip compared to $900+ from the East Coast. Which island are you planning to visit, or $62 Cheap Flights to Hawaii Island, HI - Expedia

Booking early is key, but there is a "Goldilocks Window" where prices are most likely to be at their lowest.

Flights to Honolulu (HNL) or Kahului, Maui (OGG) are often cheaper than those to smaller island airports.

December and January (holiday season) and the peak summer months of June and July are the most costly.

February and March are the most budget-friendly. Mid-April, late summer (late August/September), and the period between Thanksgiving and Christmas also offer lower rates.

Aim to book 1 to 3 months in advance for domestic flights and 2 to 8 months for international routes.