What is trip interruption and how is it different from cancellation?

Trip cancellation and trip interruption protect the same money, the prepaid and non-refundable cost of a trip, but at different moments. Cancellation applies before you leave: a covered reason stops the trip from happening, and you are reimbursed for what you cannot recover. Interruption applies after you have departed: a covered reason cuts the trip short or forces you home early, and you are reimbursed for the unused portion plus certain extra costs. The single dividing line between them is whether your trip has started.

The core distinction

Think of a trip as having a clear before and after. The before is everything from the moment you book until the moment you leave. The after is everything from departure until you return home. Trip cancellation lives entirely in the before; trip interruption lives entirely in the after.

If your father is hospitalised two days before a flight to Portugal and you cannot go, that is cancellation. If he is hospitalised while you are already in Portugal and you fly home early, that is interruption. Same event, same family, but the timing relative to your departure decides which benefit responds. This is why the two are almost always sold as a single package: they are two halves of one continuous protection that follows your prepaid costs from booking through to your return.

What trip cancellation does

Trip cancellation reimburses the prepaid, non-refundable costs you lose when a covered reason prevents you from travelling at all. These are the deposits and payments you have already made, flights, tours, accommodation, that the providers will not refund. The benefit exists because so much of a trip is paid for in advance and locked in long before you leave.

The important constraint is that cancellation pays only for covered reasons. A sudden illness or injury, the death of a close family member, jury duty, certain emergencies at home: these are the kinds of events listed in the policy. Deciding you no longer feel like going is not a covered reason unless you have added Cancel For Any Reason as an upgrade.

What trip interruption adds

Trip interruption picks up where cancellation leaves off. Once you have departed, a covered reason that forces you to end the trip early triggers this benefit. It does two things. First, it reimburses the unused portion of your prepaid arrangements, the nights in a hotel you will not sleep in, the tour days you will miss, the return leg you cannot use. Second, and this is the part travellers often overlook, it can cover the additional cost of getting home early.

That second piece matters because an unplanned one-way flight booked at short notice is expensive, often far more than the original return ticket. If a covered emergency sends you home three weeks into a month-long trip, interruption can cover both the unused final week and the cost of the emergency flight. The same covered-reason rule applies: the event forcing you home must be one the policy lists.

Why both run on covered reasons

Neither benefit is a free option to abandon a trip. Both pay only when a specific, listed event causes the loss. This is the feature that most often surprises travellers, so it is worth stating plainly: standard trip cancellation and interruption are not Cancel For Any Reason. They respond to genuine disruptions outside your control, illness, injury, bereavement, certain emergencies, not to a change of heart.

If you want the freedom to cancel for reasons the policy does not list, that is a separate upgrade called Cancel For Any Reason, which typically reimburses only a percentage of your costs and must be purchased within a short window after your first booking. For most travellers, the standard covered-reason package is what they want, because the risks it addresses are exactly the ones that derail trips.

How the two work together in practice

Because they are sold as one benefit, you do not have to decide between them. Your trip-protection coverage simply responds to whichever applies. A covered event before you leave is handled as cancellation; the same kind of event after you leave is handled as interruption. From your side, the process is the same: document the reason, keep proof of your prepaid costs and any extra expenses, and file the claim with supporting evidence such as a medical note or death certificate.

The practical lesson is to buy the coverage early, ideally when you make your first non-refundable payment, so that your deposits are protected from the outset rather than only once the trip begins.

The bottom line

Trip cancellation protects your prepaid, non-refundable costs when a covered reason stops you before departure; trip interruption protects the unused portion and the cost of an early return when a covered reason cuts the trip short after you leave. The dividing line is simply whether your trip has started, which is why the two are packaged together as continuous protection. Both run on specific covered reasons, not on changing your mind, so buy the coverage when you make your first deposit and keep your receipts. When you compare your options, check the list of covered reasons and the interruption limits so you know exactly what is protected.