Yes, you can choose a travel insurance plan that excludes coverage for cancellation, but still includes a full range of benefits to protect you during your trip, including coverage for: trip delay, medical evacuation/ repatriation, baggage and baggage delay, itinerary change and much more! Some providers will allow you to enter a trip cost of $0 which eliminates the  coverage for cancellation and trip interruption, however still provides the other benefits. A few carriers offer “post departure” products which do not include coverage for cancellation but still include coverage for trip interruption (return air) along with the other benefits.