I have the Dragonborn dlc and the Bend Will shout. When I use it on dragons, they will land for me and I can ride them. But it seems that the only thing I can do with them is attack other creatures. How do I get the dragon to fly to a location without quick travelling? Or is this impossible?
Skyrim Dragonborn – How to Fly to an Exact Location with Dragons
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Related Solutions
Bend Will can be used on Odahviing and he can be ridden.
Picture from http://imgur.com/r/skyrim/labHZ
You are able to use your spells and shouts while riding a dragon, but only once you've ordered the dragon to start attacking a target. Once you're airborne, your dragon can scan for nearby enemies (the Help menu should give you the keys for your particular platform, I think it's triangle to lock on, L3 to attack).
Once your dragon has engaged an enemy, you should be able to use your shouts and spells to assist.
Best Answer
As @Kevin has pointed out in the comments and the Wiki points out, it's not possible to actually specify a location for the dragon to travel to. In this sense: the dragon is not a mount. You are able to fast travel on the dragon (but you cannot travel between Skyrim and Solstheim) as you would normally.