$775 round trip San Francisco to Dublin is not a fare to get excited about, but it is lower than average and one of the best deals to Europe for travel in October and November. For comparison, in October 2014 airfare dropped to $540 round trip for fall 2014 flights with US Airways/American.
One of the advantages of flying to Dublin is the availability of low cost flights on RyanAir and Aer Lingus to London and other places around Europe. I have used this strategy twice in the past year, flying to Dublin and then to London or Amsterdam for hundreds of dollars less than the price for a direct ticket to these cities.
American Airlines San Francisco SFO – Philadelphia PHL – Dublin DUB
$774.80 Sunday October 25 – Wednesday November 4
United Airlines ticket flying United outbound and Air Canada inbound
San Francisco To Newark EWR – Dublin DUB – Toronto YYZ – San Francisco SFO
$779.40 Wednesday November 4 – Wednesday November 11
London for a discount price
San Francisco to London is a low $1,042 on Aer Lingus and routes via Dublin. United and American want $1,150 today for fall travel from SFO to London.
Round trip flights between Dublin and London are as low as $45 on RyanAir and $69 on Aer Lingus. If you have time and want to visit Ireland too, save a couple hundred dollars on the London ticket cost flying to Dublin and buy a separate ticket to fly between Dublin and London.
Dublin – London Stansted STN $45 round trip on Ryanair.