Before booking your Hawaiian vacation, you may be confused about whether you need a passport to fly to hawaii. For U.S. citizens traveling domestically, a passport is not required. However, travelers 18 and older must show valid identification at TSA checkpoints. With REAL ID rules now active, a compliant driver’s license or an alternative TSA-approved ID is needed to board your flight. This article also highlights situations where a passport could be required, such as cruise itineraries with foreign stops or connecting flights routed internationally. Stay informed with this detailed guide to Hawaii’s 2025 travel identification rules.