Originally Posted by
canadiancow
So all I can say is do your research when booking. Sometimes a round-trip, even within North America, is cheaper. Sometimes it isn't.
Hear, hear!
For years, you could get very reasonably priced one-ways YHZ-LHR, but not LHR-YHZ. I have no idea why.
Last time I checked, AC had abandoned that practice. Oneways had become very expensive in both directions.