Compression socks are great for traveling.
Don't need to have a condition to start wearing them. They helps circulation of the blood and as a result your legs will be less tired and you will feel better.

Here 2 great links:
Compression Travel Socks: http://www.legstherapy.com/specialty/travel-socks.html
Compression Stockings - DVT condition: http://www.legstherapy.com/compressi...bosis_dvt.html

Hope this helps

Daniela