I do not doubt there are quotes using the term "fly" with Balrogs, but I am positive Tolkien uses the term fly to mean flee or travel with great haste. Otherwise many elves would also have been soaring about the heavens over the course of Middle-Earth's history.
Here's a quote from HoME 5:
Quote:
"In my view there is no question that the words 'save some few [Balrogs] that fled and hid themselves in caverns inaccessible at the roots of the earth' preceded a good while the Balrog of Moria (there is in any case evidence that a Balrog was not my father's original concept of Ganfalf's adversary on the Bridge of Khazad-dum). It was, I believe, the very idea--first appearing here--that some Balrogs had survived from the ancient world in the deep places of Middle-earth that led to the Balrog of Moria. In this connection a letter of my father's written in April 1954 (Letters no, 144, p. 180) is intersting:
[The Balrogs] were supposed to have been all destroyed in the overthrow of Thangorodrim... But it is here found... that one had escaped and taken refuge under the mountains of Hithaeglin."
|
__________________
'See half-brother! This is sharper than thy tongue. Try but once more to usurp my place and the love of my father, and maybe it will rid the Noldor of one who seeks to be the master of thralls.' -Feanor, threatening Fingolfin with his sword. ~Moderator of the
Mordor RPG.~