NW Northwest Airlines 220 Economy USD DEN Denver US United States SEA Seattle US United States onetravel.com true 2009-12-20T00:00:00Z NW Northwest Airlines 222 Economy USD DEN Denver US United States SEA Seattle US United States sky-tours.com true 2009-12-20T00:00:00Z US US Airways 234 Economy USD DEN Denver US United States SEA Seattle US United States cheapoair.com true 2009-12-20T00:00:00Z F9 Frontier Airlines 255 Economy USD DEN Denver US United States SEA Seattle US United States onetravel.com true 2009-12-20T00:00:00Z UA United Airlines 265 Economy USD DEN Denver US United States SEA Seattle US United States onetravel.com true 2009-12-20T00:00:00Z NW Northwest Airlines 271 Economy USD DEN Denver US United States SEA Seattle US United States airfare.com true 2009-12-20T00:00:00Z NW Northwest Airlines 281 Economy USD DEN Denver US United States SEA Seattle US United States openjet.com true 2009-12-20T00:00:00Z AS Alaska Airlines 305 Economy USD DEN Denver US United States SEA Seattle US United States airfare.com true 2009-12-20T00:00:00Z DL Delta Air Lines 335 Economy USD DEN Denver US United States SEA Seattle US United States airfare.com true 2009-12-20T00:00:00Z