Well actually it won't fit on a CD, so no. But it can be put on a DVD disc.
A quick search revealed this link where you can download the ISO image and then burn it to a disc.
https://www.microsoft.com/en-us/soft...load/windows10
However I think you may be asking about ordering a physical disc from Microsoft because you may have a slow or unreliable internet connection. My quick search did not find that, but I must say that if you do not have a good internet connection, you might want to skip the upgrade until you have a good connection. Windows 10 is going to want to keep itself updated via the internet and it probably will not work well without it.