Alaska Airlines announced Wednesday the launch of Flight Pass, a subscription service with two tiers to be redeemed for 6, 12 or 24 nonstop trips a year “to eligible destinations” in the Western U.S. Notably excluded: flights to and from Alaska’s home base in Seattle. Flight Pass subscribers can choose between two annual plans: the “Flight Pass” starting at $49 per month or “Flight Pass Pro” starting at $199. The difference between the two plans is the length of time required for booking. While the “Flight Pass” plan requires members to book at least 14 days in advance, the “Flight Pass Pro” allows for same-day booking (up to two hours before departure); both plans allow members to book 90 days in advance.Josh Rivera (USA Today)