The fruit you enjoyed during your Hawaii trip may need to stay on the island. Before flying to the U.S. mainland, Alaska, or Guam, present food, plants, and other agricultural items to a USDA inspector. The USDA APHIS traveler guidance, updated September 16, 2026, lists both prohibited items and items allowed after inspection.

For departure planning, make two decisions before you close the suitcase: what can travel, and what needs to stay accessible for inspection? Then build the airport process into your last-day plan. Buying a souvenir first and checking the rules at the terminal leaves you fewer options.

Coming from the continental U.S. to Hawaii: use Akamai Arrival for the state’s agriculture declaration, including when you have nothing to declare. The official FAQ permits submission up to five days before your scheduled departure. International arrivals follow U.S. Customs and Border Protection procedures and are not required to submit this state form.

Leaving Hawaii for the mainland, Alaska, or Guam: follow USDA’s outbound inspection guidance. Completing the arrival form does not clear the food or plants you later buy for the flight home.

Our Hawaii agriculture form guide covers the inbound declaration and arrival inspection. Use this page for the departure packing decisions; there is no need to repeat the arrival process when planning your return flight.

Honolulu’s official airport guidance says checked and hand-carried baggage is inspected before mainland departure. It asks passengers to report agricultural items and be prepared to open their bags and parcels.

Follow the signs and staff instructions at your departure airport. Before handing over a checked bag, ask where to present anything requiring agricultural inspection. Keep food, flowers, and plants where you can reach them without unpacking the entire suitcase. Do not assume that carrying an item onto the plane exempts it from inspection.

Leave time for agriculture procedures as well as airline check-in, security, and reaching the gate. Use your airline’s current deadlines to plan the day; a universal extra-minute allowance would be misleading. Our Hawaii airports guide helps you find your airport’s information.

Start with USDA’s current Hawaii list. The examples below help with common packing decisions; they are not a complete list or a promise that an individual item will pass.

• Fresh pineapple and coconut: USDA lists these as allowed after inspection. Present them with your other agricultural items.
• Processed food: commercially canned or processed foods appear on the allowed list. For frozen fruit, USDA requires it to be frozen solid at inspection; frozen mango must be seedless. A package or vacuum seal alone is not the same as meeting the applicable requirements.
• Papaya, lychee, longan, rambutan, and other listed treated fruit: treatment must be at a USDA-approved facility, with sealed boxes properly marked and stamped. Ask the seller about those requirements before buying; a box labeled as a souvenir is not enough.
• Sugarcane, soil, and plants in soil: USDA lists these as prohibited for the mainland or Alaska. Do not pack them on the assumption that an inspection sticker will solve the problem.
• Plants and cuttings: only certain kinds are allowed. USDA notes that some destination states require certification by Hawaii’s agriculture department. Check the plant and destination before buying, rather than treating every bare-root plant as eligible.

If an item is unusual or its treatment is unclear, use the APHIS office contacts on that same official page before departure. For your broader packing list, use our Hawaii packing checklist, then make a separate pass through the things you bought during the trip.

USDA’s allowed-flower guidance excludes jade vine, Mauna Loa, and citrus or citrus-related plant parts, including flowers and leaves. A lei can contain more than one kind of material, so check the foliage as well as the flowers.

Ask the maker what is in it and present it for inspection. Buying it at an airport does not replace that check. If you cannot identify the materials, take a photograph and enjoy the lei during your stay instead of assuming it can travel home.

An island hop has its own state rules. The Interisland Inspection Program advises passengers transporting potted plants, cuttings, or live animals other than dogs and cats to contact Plant Quarantine on the departure island in advance about inspection hours. Do not treat an interisland ticket as blanket permission to move agricultural items.

If your itinerary connects through another Hawaii airport before the mainland flight, ask the airline where to complete the required agriculture steps for your bags. For an international flight or a cruise, check the destination’s entry rules and your carrier’s instructions before buying food or plants to take along. This mainland-focused checklist cannot settle those requirements.

1. Before shopping: check the exact item and destination against the official USDA guidance. For treated fruit or plants, resolve treatment and certification questions with the seller first.
2. Before packing: group food, flowers, and plants so you can show them to the inspector. Keep required packaging and markings intact.
3. Before leaving your lodging: work backward from the airline’s deadlines, allowing for rental-car return and the airport procedures. Use our red-eye departure plan if checkout leaves you with a long final day.
4. At the airport: report your agricultural items, follow inspection instructions, and let the inspector decide whether the particular item can travel.

The useful shortcut is to check before buying. It gives you time to choose something else, enjoy the fresh item during your stay, or ask the right office while you still have options.