Actually, in Canada's case, our dollar depreciated in the last year vs the US one because of oil and lack of demand for natural ressources. That's why we are paying higher this year to travel. Now, an average ticket during the "high season" is around 1 600 $ CAN on a average airline carrier such as EgyptAir. If you pick an european airline carrier, it reaches almost the 2000$. Last year, the canadian dollar had almost parity with the US one that's why we paid less which gets back to the same as prices dropped but our purchasing power decreased too.
The best website to book tickets :
Cheap Travel, Flights, Hotels, Vacations, Car Rentals, Cruise, Activities on Orbitz
I compared their prices with travel agencies and they are exactly the same. (20-30$ difference). I just went through all the hassle to book my tickets for this summer.