I have downloaded a custom icon font from fontello and intend to use it in my meteor app. I tried the demo that comes with the downloaded package and the fonts display fine. He
If you want to reference your fonts at your.domain.com/fonts/font_name.x, you should move your fonts directory to a directory labeled public. You can then access them using the path /fonts/font_name.x.
Take a look at the Unofficial Meteor FAQ found here: https://github.com/oortcloud/unofficial-meteor-faq#where-should-i-put-my-files
public/ # <- static files, such as images, that are served directly.
Or the Meteor documentation directly: http://docs.meteor.com/#structuringyourapp
Lastly, the Meteor server will serve any files under the public directory, just like in a Rails or Django project. This is the place for images, favicon.ico, robots.txt, and anything else.