Do you or don't you need a pass port for flying into Mexico?

No, you don't need one. All you need is a certified copy of your birth certificate and your driver's license.

I just came back from Mexico and that's all I used. Good luck!

Thanks Isa!!!!

Same here crossing over the border. I did hear that after Jan 1, 2006, pasaporte required.

kathy, your spanish is very good!! lol

No you do not need a passport... right now. Passports make things A LOT easier though. I have been told, as of June 1st, all travelers crossing the Mexico border will need a passport though due to border security beefing up.