Best deals on AirLine tickers?

I haven bee shopping around, where my best find was www
I received a flight from California to Halifax, Nova Scotia,for around 240.00 and I flight from Virginia to California for $240.00 including taxes, one way each time..
I already bought the tickets, but was wondering if there were any other options out there I should have considered..!

There is a thread in the Outdoor forum that has all the info you could ever need.