What Last name I should use t travel to Mexico??

I' planning to buy a fly tickets to go to Mexico this week and I do not know what last name I should use. Sound funny right ?but I'm kind of confuse...In my Argentinian Passport I have my maiden name and in my Resident Card , Driver License, etc I have my Married Last name. When I will buy the tckets what last name I should use the one in my passport or the one in my US Resident Card???
Thank you sooo much
I would like to tell you something to everybody. In the Travel Agency they told me I should put my maiden name ,the one appears on my Passport because I have to show to them my Passport , who knows I'm confuse
???????? Help!! ;+)

Make one up and just sneak in. That's what the mexican's do when they come here and they get away with it.

the one in your us resident card would be best then your easy to identify

Lopez, they'll never know

your resident card,just tell them you need to change that later..it works..I did it too! ;) feliz viaje!!! have a nice and safe trip!!!!!

use this one: Gordo


make sure that your ID's match your name on your tickets, no matter what!!!!!!

Jesus

the one on your residents card, good trip. visit michoacan its beautiful

You need to match your passport or you may see delays during your travel. Keep it simple.

Use the U.S.official documents,the resident card
and the driver license because they're the latest documents you obtained from the U.S. and to explain your case you must carry your passport with you because it seems that you got married after you arrived to the States,