Originally Posted by A406toHeathrow

Thanks for this its really useful

Cheapest cash fares I've found so far (I've only searched ex-DUB and ex-OSL on ba.com) is c.£1420 per person return in J (c. £900 in WT+ and £490 in Y) which is OSL-LHR-SEA and the reverse in J but coming back on the Sunday. That seems pretty good?