Flights from Qatar to Edmonton lean towards being more expensive in March. Prices are generally better when you fly from Qatar to Edmonton in February, with the cheapest ticket starting at 3,441﷼.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Qatar to Edmonton as you normally would.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Doha Hamad Intl Airport to Edmonton Airport flight would often be abbreviated as a DOH to YEG flight.