Make sure your U.S. passport is up to date and valid for at least six months from the date of entry into Honduras. Neither a visa or a fee is required to enter for U.S. residents but you must provide evidence of return or onward travel. Don't lose your 90-day tourist card issued by customs. You need it to leave Honduras too. The U.S. Department of State recommends carrying a photocopy your U.S. passport at all times to prove your identity and U.S. citizenship if questioned by local officials.
Book a flight to Honduras on American, Continental, Delta or TACA. These airlines fly into Honduras from the hubs of Houston, Miami and Atlanta. Flights arrive and depart from Honduras' three international airports: San Pedro Sula, Tegucigalpa and Roatan. If you plan on diving, you may want to fly directly from the U.S. to the island of Roatan.
Make sure you have enough cash. Lonely Planet says Honduras is inexpensive, but expect to spend more if diving is part of your trip. Accommodation is your biggest expense. Honduras offers a range of hotel rooms from high-end luxury at $300 per night to off the beaten path budget rooms for $10 per night. Eating out in Honduras is less expensive than in the U.S. Meals run under $10 per person. Cheaper eats can be found at street vendors or the grocery store. Travel around by bus if you're looking for a bargain, but taxis are also safe and affordable.
Plan to arrive during suitable weather. Honduras' climate is tropical with a rainy season and a dry season. Rainy season lasts from May to November, but don't let that deter you from visiting. Rain usually arrives in time for an afternoon nap and lasts an hour or so. Hurricane season in Honduras is October and November.
