I bought a large bag of flour at Sam's Club last week. The instructions printed on the bag say it's good for one year from the date stamped on it. Based on that, I'd say your flour is okay. Just check for "critters" when you use it. The organic flour may be over the hill, though.
However, in all the years I've been baking, I've only had bugs in a bag of flour once.
"As a girl I had zero interest in the stove." - Julia Child
This is real inspiration. Look what Julia became!