City brief Oahu Waikiki bus grid. Resort breakfast every morning is how mainland prices follow you across the Pacific. Loading the printable brief… VacationMath orientation — not live rates When to go May and September–early October — after spring break, before winter northbound rates. Top money-saving tips Grocery the condo or a plate-lunch breakfast. Resort breakfast every day is mainland prices plus a view surcharge.Skip the car if you will stay on the Waikiki bus grid. Parking is $40–55/night.Plate lunch (Rainbow Drive-In / L&L class) and poke. Leonard’s malasadas once, not as a meal.Hanauma Bay is reserved and ticketed. Pearl Harbor is one somber morning — not a beach day.Midweek HNL from the West Coast. East Coast origins pay a red-eye or a fare — price both.A neighbor-island hop is a second ticket. Do not stack Maui into five Oahu nights without a second fare.May and September are the value window. Winter holidays are priced like a souvenir.Kahala or Ko Olina is leftover and usually a car. Halekulani is Waikiki luxury if you refuse to leave the grid. Build a hard-budget plan