Although buying flight insurance from airlines is the most convenient way to get coverage, it is usually more expensive than buying from an insurance company. (travelinsurancereview.net)
For example, if you buy flight insurance through an airline, then it may compensate for the flight cancellation, but it may be credit towards a new flight. (generalitravelinsurance.com)
This coverage is actually quite common, so you'll find it in vacation package plans, business traveler plans, medical plans, and flight insurance plans. (travelinsurancereview.net)