Alaska Airlines is offering double miles on all Alaska, Horizon, and Delta flights between November 1 and December 15, 2004. Registration is required.

This is great news for Alaska flyers — and non-elite Delta flyers should consider crediting their flights to Alaska Mileage Plan during the promotion period.

Including Delta in the double miles promotion is meant to highlight the new partnership between the two airlines. Beginning November 1 the two airlines offer reciprocal mileage earning and burning opportunities.