Originally Posted by
rruaco
You might find that a single ticket LHR-YVR (BA) YVR-SFO (?) SFO-LHR (BA) is cheaper than two separate tickets even with stops in YVR and SFO. Last year Kayak sold me a LHR-LAX-BOS-YYZ-LHR ticket (UA+AC) with stops where I wanted for less than the cost of a LHR-BOS round trip on the same dates ^
If YVR has a US immigration pre-clearance checkpoint then going UK-Canada-USA might involve slightly less queuing than going UK-USA-Canada but I don't think there is much in it.
Having a longer overnight flight home with plenty of time to sleep is also nice.
Good point...I think I will plan on visiting YVR first and then flying back from SFO, unless of course the MFU dictates that the only seats avaialble mean it has to be done the other way.