For Seattle fliers/transiters FYI Delta has opened two new lounges across from gate A11. The first floor is a second SkyClub for the airport, which can be accessed as normal for AF flights. The second floor is a premium Delta One lounge with access for those flying AF J/F. Hours for Delta One lounge are 8:30am to 8pm with no limit on when you can arrive, even for originating flights. Fortunately they didn't have to restrict Flying Blue partners here like they did at BOS due to the small size there.

Delta also has exclusive access soon to additional A gates to (it's expected) allow more flights, including international partner flights, to depart from A gates instead of having to travel out to S gates.

More info here: Delta One Lounge Coming to SEA