Many people are not aware of the fact that Coinbase belongs to GDAX or vice-versa.

If you try to transfer any crypto coin out of Coinbase you will have to pay some nasty fees, however, you can just send your coin over to GDAX (use the same account as Coinbase) and the transfer fee is free. From there, simply send to another exchange (ex: Binance) and the transfer is also free. GDAX will handle any outwards transactions.

Therefore you can easily transfer stuff from Coinbase to another exchange for free if you use this simple method: Coinbase » GDAX » another exchange