Originally Posted by Rickylucas26

Hi, I am traveling on a British airways flight under American Airlines on 26th December from London to Atlanta. I have a connection at Chicago ohare. As it is an international flight to domestic I will arrive at terminal 5 and I then need to catch my domestic flight at terminal 3. I would like to know the procedure on arrival at terminal 5.

As stated above, clear immigration, collect bags, clear customs, find the AA desk in the same area (before exiting the security door) and check your bags with them. They'll also give you the BP if you don't have one already. Exit the secure area, find the train to T3, go through security. You should have about 2 hours to enjoy the magnificent T3.

Will I have to claim and recheck my baggage ect?

Yes, but as stated above. Do not take your bags to T3 and recheck there. Recheck them in T5 itself.

I also have 4 hours wait for my connection I am assuming this will be plenty if time.

Plenty. You'll also be left with some time to enjoy the limited facilities offered by T3. I can recommend Tortas Frontera for high quality Mexican fast food.