Is it too early to get to work on sending holiday gifts to loved ones overseas? Of course not.

For delivery by Christmas to U.S. Military and APO/FPO, it depends on the destination, but for most, these cutoff dates apply:

December 9 for Priority Packages and First-Class Cards and Letters.
December 16 for Priority Express Mail.

The Postal Service offers a $2 discount on its largest Flat Rate Priority Box when sent to an APO/FPO/DPO address.

USPS offers a free Military Kit including:
Two Priority Mail APO/FPO/DPO Flat Rate Boxes
Two Priority Mail Medium Flat Rate Boxes
Priority Mail tape
Priority Mail address labels
To order the kit, call 800-610-8734.

For domestic Christmas mail to arrive by December 25, the USPS deadlines are:

Standard post - December 15
First Class mail - December 20
Priority mail - December 21
Priority mail express - December 23