Yes, international flights generally have blankets, but availability is limited.
While cabin temperature on both international and domestic flights tends to be cold, airlines approach blanket provision differently. Domestic flights often skip blankets due to the short flight duration. On international flights, however, airlines do stock blankets. But based on our reference, airlines store a limited number of blankets onboard that will not cater to every passenger.
Therefore, while blankets are usually available on international flights, it's not guaranteed that every passenger will receive one.
