Flights from Seattle to Cancun, Mexico for only $332 return with US Airways. Availability throughout the summer months.
Super cheap one-way flights from Seattle to Port-au-Prince, Haiti for only $87 with American Airlines. Possible to exit at Miami as a hidden city too!!
If you missed the Seattle to the Bahamas deal a few days ago, then this might be for you... Fly from Seattle, USA to St. Thomas of the US Virgin Islands for only $259 return with US Airways.
Cheap flights from Seattle to Puerto Rico for only $244 return with US Airways and American Airlines.
Flights from Seattle to Cancun, Mexico for only $367 return with US Airways and American.
Cheap flights from Seattle to Hong Kong for only $455 return with Air Canada.