Marhaba!  I am in the process of booking at ticket with Onur Airlines.  I can understand Turkish, but I can´t speak it.   But I am having trouble with this statement.  I put in my credit card number, and there is this sentence at the bottom I want to understand before I click on "devam"

Bilet satýnalabilmeniz için,kredi kartýnýzýn VÝSA veya MASTERCARD olmasý ve 3D güvenlik sistemine tanýtýlmýþ olmasý gerekmektedir.

To sell you a ticket, your credit card Visa or Mastercard ? and 3D(??) security system proof is needed?

What is a 3D?? 

Tashakurlar for the help.

Sometimes for credit card transactions an extra number needs to be entered to verify the cardholder.

This is usually the last 3 digit number printed on the back of your card on the signature strip.

I´m guessing this may be the 3D system (i.e. 3 Digits that you need to enter)

Tashakurlar Henry.

Does anyone know about traveling on Onur Air?  Is it the same as traveling on Turkish Air?  Would you recommend traveling on this airline?  I will be traveling with a small child.

Also, how does travel to/from the airport to the Sultan Ahmet area work?  I think the hotel provides shuttle service, but I wanted to see what my options were?  How do I find out? 

I will be in Antalya as well...so are there taxis lined up that can take us to our hotel there as well or do I need to reserve in advance?  The hotel we are staying at in Antalya does not offer shuttle service.