Originally Posted by
guv1976
Another possibility would be to fly AS SEA-BOS, EI BOS-DUB, and then BA/EI DUB-LON; or SEA-SFO on AS, SFO-DUB on EI, and then DUB-LON on BA/EI. No surcharges on AS; low surcharges on EI TATL flights. Not sure about the fees on EI DUB-LON; on BA for that segment, they would be low if one did an RFS redemption.
If you're going to be flying AS anyways, you can add on YYJ-SEA to it to get all the way from Victoria. I'm not entirely familiar with how Avios work, but I can't imagine that adding on that short segment on the same carrier would increase the Avios needed by that much. Also, AS flies to JFK now for another option to connect to EI.