WotLK I can not fly in northrend

[meltroso1555]

since 3 months ago I am trying to buy the flight license to be able to fly in I can not fly in northrend but the effort has been emban

I bought all the licenses (less artisan riding) and I still can not fly

I need help pls I have a dk lvl 80 and I have the moturas:

-Golden Gryphon
-Winged Steed of the Ebon Blade

[Nobuemon]

You need to get Cold Weather Flying from Hira Snowdawn npc#31238 in Dalaran