Yes, you can absolutely buy travel insurance after you have already booked your flights. Most providers allow you to purchase a policy up until the day before you depart. Why Timing Matters

If you missed the checkbox during your airline checkout, you have several options:

While you can wait, buying insurance as soon as possible after your first trip deposit is generally recommended for the following reasons:

: Trip cancellation coverage typically begins the day after you purchase the policy. Buying early protects your investment against unforeseen issues that could arise weeks before your flight.

: Insurance only covers "unforeseen" events. If you wait until a major storm is already named or a strike is announced, you can no longer get coverage for disruptions related to that specific event. How to Buy After Booking