Insurance

Check your existing insurance policies and credit card coverage before you buy travel insurance. You may already be covered for lost luggage, canceled tickets, and/or medical expenses.

The cost of travel insurance varies widely, depending on the cost and length of your trip, your age and health, and the type of trip you're taking, but expect to pay between 5% and 8% of the vacation itself. You can get estimates from various providers through InsureMyTrip.com. Enter your trip cost and dates, your age, and other information for prices from more than a dozen companies.

Trip-Cancellation Insurance

Trip-cancellation insurance helps you get your money back if you have to back out of a trip, if you have to go home early, or if your travel supplier goes bankrupt. Permissible reasons for cancellation can range from sickness to natural disasters to the State Department declaring your destination unsafe for travel.

For information, contact one of the following recommended insurers: Access America (tel. 866/807-3982; www.accessamerica.com), Travel Guard International (tel. 800/826-4919; www.travelguard.com), Travel Insured International (tel. 800/243-3174; www.travelinsured.com), or Travelex Insurance Services (tel. 888/457-4602; www.travelex-insurance.com).

Medical Insurance

For travel overseas, most health plans (including Medicare and Medicaid) do not provide coverage, and the ones that do often require you to pay for services upfront and reimburse you only after you return home. As a safety net, you may want to buy travel medical insurance, particularly if you're traveling to a remote or high-risk area where emergency evacuation is a possible scenario. If you require additional medical insurance, try MEDEX Assistance (tel. 410/453-6300; www.medexassist.com) or Travel Assistance International (tel. 800/821-2828; www.travelassistance.com; for general information on services, call the company's Worldwide Assistance Services, Inc., at tel. 800/777-8710).

Lost-Luggage Insurance

On flights within the U.S., checked baggage is covered up to $2,500 per ticketed passenger. On international flights (including U.S. portions of international trips), baggage coverage is limited to approximately $9.07 per pound, up to approximately $635 per checked bag. If you plan to check items more valuable than the standard liability, see if your homeowner's policy covers your valuables, get baggage insurance as part of your comprehensive travel-insurance package, or buy Travel Guard's "BagTrak" product.

If your luggage is lost, immediately file a lost-luggage claim at the airport, detailing the luggage contents. Most airlines require that you report delayed, damaged, or lost baggage within 4 hours of arrival. The airlines are required to deliver luggage, once found, directly to your house or destination free of charge.