On arrival in Canada, visitors may exchange their own currency at the foreign exchange counters found at most airports. These exchange counters typically have better exchange rates than mainstream banks and serve customers on a “first come, first serve” basis. It is advisable, however, to use a bank or specialized exchange bureaus to purchase larger amounts of currency.
In these instances, the exact amount usually needs to be ordered three days in advance. Note that large exchanges are possible only for the clients of that bank. People who are not clients of a bank can usually exchange smaller amounts at a bank on presentation of a passport. When exchanging money in exchange bureaus, clients are served on a “first come, first serve” basis.
Some businesses will accept U.S. currency, although exchange rates may be unfavorable.