TL;DRBuy travel insurance whenever your trip is over $1,500 in non-refundable costs or longer than 7 days. Below that line, the premium often outweighs the realistic risk; above it, one canceled flight pays for the policy.
Travel insurance is one of those products where the marketing is louder than the math. Every booking site offers it, every airline cross-sells it, and most travelers either auto-buy out of guilt or skip it entirely. Neither is right. The honest answer is that travel insurance pays off when the worst case — a canceled trip or a medical emergency abroad — would cost you more than several policies combined. Below that line, you are buying peace of mind at a premium. Above it, you are buying actual financial protection.
The practical cutoff most experienced travelers use: $1,500 in non-refundable costs, or 7 days of travel, whichever comes first. Below that, self-insure. Above it, get a policy.
Why this cutoff works
A standard comprehensive policy costs 4 to 8 percent of your trip cost, per industry data from Squaremouth and InsureMyTrip. On a $1,500 trip that is $60–120. On a $5,000 trip it is $200–400. The premium scales with what you are protecting, but the floor is the same: roughly $50–80 for any policy at all.
At a trip cost of $1,500 with a $75 policy, your break-even is one $75 disruption — a missed connection, a one-day hotel re-book, a minor luggage delay. Trips over a week long see those break-even events at much higher rates simply because more days means more chances for something to go wrong. That is the duration half of the cutoff.
The cost half is about recoverability. A canceled $400 weekend trip is annoying. A canceled $4,000 anniversary trip with non-refundable hotels and prepaid tours can wipe out a year of savings. Insurance turns the second category from a financial disaster into a paperwork inconvenience.
What to actually look for in a policy
Three coverages matter more than the rest:
- Trip cancellation / interruption — reimburses non-refundable costs if you have to cancel for a covered reason (illness, injury, death in the family, jury duty, severe weather affecting your destination). Look for at least 100% of trip cost.
- Emergency medical and evacuation — Medicare does not cover you abroad, and most US private health plans either don't or do so weakly. Medical evacuation from a remote location can run $50,000–$200,000+. Look for $100,000 medical and $250,000 evacuation as the floor; $500,000 evacuation if you're going somewhere remote.
- Baggage delay — pays out a per-day allowance after 12–24 hours of delay. Not huge dollars, but the easiest claim to actually file.
Skip add-ons like "cancel for any reason" unless you have specific risks — they roughly double the premium for partial reimbursement.
Common pitfalls
Credit-card travel coverage is real but limited. Premium cards (Chase Sapphire Reserve, Amex Platinum, Capital One Venture X) include trip cancellation and delay coverage when you pay with the card. Read the actual benefit guide — coverage caps are often $5,000–$10,000 trip cancellation and $500–$1,000 baggage. That's enough for many shorter trips and one more reason the cutoff sits where it does.
Bottom line
Skip the insurance for cheap, short, refundable trips. Buy a comprehensive policy whenever your non-refundable spend crosses $1,500 or your trip stretches past a week. Use a comparison site like Squaremouth or InsureMyTrip to filter by what you actually need rather than what's pushed at checkout. The right policy costs about as much as a nice dinner out and removes the only category of travel problem that ruins lives instead of vacations.
