Can a Canadian fly to and enter Mexico with one-way ticket using valid passport?

Yes, Canadians citizens holding a valid passport can enter Mexico as a tourist for up to 180 days with only a one-way ticket.

In general, travelers visiting Mexico for tourism purposes are required to have a valid passport and tourist visa. However, citizens of Canada are nationals considered exempt from requiring a visa for stays up to 180 days. As long as your Canadian passport is valid for at least 6 months beyond the date of your entry into Mexico, you can enter the country without a visa.

When entering Mexico, you will be required to present your valid passport and fill out a tourist card (Forma Migratoria Multiple, or FMM). The FMM is a multiple-entry tourist card that allows for stays of up to 180 days in Mexico. You will be given the FMM upon arrival, and you must keep it safe for the duration of your stay in Mexico.

Please note that the 180-day period begins from the date of your first entry into Mexico. If you plan to stay for more than 180 days, you must apply for a visa before your arrival in Mexico.

While a one-way ticket is generally acceptable for entry into Mexico, some immigration officials may inquire about your purpose and duration of stay. It's advisable to have some basic travel documentation, such as a hotel reservation, flight itinerary, and proof of sufficient funds, to demonstrate your intention to depart Mexico within the permitted period.

To avoid any potential issues at the port of entry, it is recommended to check with the Embassy of Mexico or consult reliable sources for the most up-to-date information on entry requirements and any specific regulations related to one-way tickets.