I travel to Europe each summer, and no longer rely on Alaska miles for my trip.
This year, I booked the aer Lingus flight SEA-DUB-SEA. J Award availability using Aer Lingus Avios was decent with 11 months notice. Most flights were loaded with three J seats, one of which was bookable by partners. Once Alaska allows Aer Lingus redemptions this will become an option with Alaska miles, although I expect seats on the SEA flight will be booked quickly. 😀