DY will begin 2 x weekly service to DEN and 4 x weekly service to SEA from mid September.
Denver - Begins 16SEP17
DY7171 LGW 09:50 - DEN 12:40 789 26
DY7172 DEN 14:40 - LGW 16:40 789 26
Seattle - Begins 16SEP17
DY7131 LGW 09:50 - SEA 11:45 789 x246
DY7132 SEA 13:45 - LGW 07:05 789 x246
Norwegian launches Denver / Seattle service from Sep 2017 :: Routesonline