Thinking, do I need a passport to fly to Hawaii in 2025? If you're a U.S. citizen, good news — you typically don’t. Hawaii is a U.S. state, so flights from the mainland are domestic. However, starting May 7, 2025, you'll need a REAL ID-compliant driver’s license or an accepted alternative like a passport or military ID to board domestic flights. This guide provides everything you need to know, from ID requirements to rules for children and cruise travelers. If you’re heading to Hawaii by sea and your cruise stops in another country like Mexico or Canada, a passport might still be required. Learn what counts as valid ID and how to avoid travel disruptions. Whether you're flying or cruising, make sure your documents are in order for a smooth, worry-free Hawaiian getaway. Read our full article for more detailed travel tips.