If I purchase travel insurance for my trip and my trip changes, may I still use the same travel insurance policy? Published by Chris Harvey December 18, 2008 Most travel insurance policies may be modified prior to your scheduled departure date. You may change the travel dates and/or trip cost if required. However, you usually may not add or delete travelers. Related articles: One of the members of our family is much older than the rest of us. Does that effect the premium? What does "baggage delay" cover? What is "International Medical" travel insurance? My travel insurance policy excludes hazardous sports? What is considered a hazardous sport? I have already departed from my primary place of residence. May I purchase cancellation insurance for a return trip home?