wharvey and terenz:
<<Otherwise check www.AA.com and www.Alaskaair.com They are the only 2 games in town.>>
United, Delta, and Continental are still flying that time of year from anc - sea although their schedules are fairly limited (mostly night flights).

Canada 3000 is a charter and limited schedule carrier that carries a lot of package tours between vancouver and anchorage. They have fares as low as ~$150.00 rt (you would just throw away the return and bus it both directions from and to sea) - availability is often limited and depends upon the space that is left unsold from the package tours. http://www.canada3000.com/

One way, Alaska offers a fare of ~$250 (rt about $320)anc-sea but this is limited to evening and night flights. You could also try to see if you can get an open jaw for the itinerary sea-yvr-anc-sea, but I expect it won't be much less than the combined one way prices for the routes or ~$350 to $400.

If you haven't purchased your United tickets yet you might try to see what the open jaw rochester-sea(or yvr)-anc-sea would run you if travel to Alaska is permitted on the 2 for 1 deal you are getting. Flying from up here it seems that most of the cost of joint tickets or any fares to the east coast are mostly taken up by the Alaska segments and the segments in the lower 48 make up a small amount of the total cost of the ticket.

And, yes, remember to bring raingear. Although the last few days no poncho has been needed up here, 72 degrees and very sunny, this is definitely not the norm. The first week of September was very nice here last year.

Good luck,

Jerry