Hainan Airlines is having a nice sale from Madrid to Osaka. Flights start at €1745 but these fares credit nicely to Alaska Airlines at 100% EQMs and 200% RDMs so you would earn 16096 EQMs and 32192 RDMs.
We had a chance to fly Hainan Airlines a while back and it was a perfectly acceptable product. Here's a link to the full Trip Reports on their Boeing 737s as well as their long-haul Boeing 787s.
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