Can you book a flight without a passport in Canada?
Regarding international flights - On some websites yes, on some no. With some airlines yes, with some no. With most walk-in travel agents yes. It is not an across-the-board rule that you must have a passport number to book an international flight. But if you dont have a passport at check-in, you are screwed. Regarding domestic flights - You do not need a passport. This will vary from country to country though; in the US and Canada yes you can.