Is it possible to take an overnight bus from Mendoza to Buenos Aires and go to the AEP airport for a flight to Iguazu in the afternoon? How much time would it take? On a weekday...on the weekend? Thanks!

It should not be a problem, unless you are going to AEP during the rush hour out of town. About a quarter of an hour, at the most.

Be careful with the cabs waiting outside the bus station. Make sure the cabbie sees you writing down his license plate before you board and get off the cab if the driver's info is not visible (hanging from his seat).

Wait for an air-conditioned cab.

If you have time to kill at midday, try Rodizio, a Brazilian style grill, near AEP: http://www.guiaoleo.com.ar/detail.php?ID=2154

Thanks Avrooster! Would those bus station cabs still have the 'radio cab' and look like cabs? Also, are public places like museums and even retail stores generally closed on Sunday AND Monday in Buenos Aires? What are typical retail store hours? Do they close mid day for a couple hours? Thanks again! I really appreciate all this.

In my opinion if you are talking of Aeroparque I would not even try to get into a taxi from that line. The are remises, booths are visible and there is more than one. Although you will end up paying a bit more than a taxi I believe it is a better choice. Of course avrooster can do it because he knows, even me, I might be able to do it and I guess i have taken a taxi or two from that line but lately I opt for the remises , I buy the pre paid tickets from the booth only.

In response to the radio cab look, this is the way I see it, the "security " of taking a radio taxi comes from the fact that when you call, the operator registers your phone and name and the taxi number that is supposed to pick you up, however if you flag in the street nothing is registered anyplace.
Having said this, once you are a little familiar with some of the larger radio taxis companies you know their name, like Pidalo, Premium, Taxi Paris, Alo Taxi, and so forth then if you see one of them empty most likely everything will be fine.However there is a little more risk flag than calling.I must confess I do it all the time .
I know of a person, a local, that in the rushing hour flagged a taxi that she thought it was ok, well it was not.

Graziella, the OP is going from the bus terminal to AEP, not taking a cab at AEP.

sorry. You are talking from a bus terminal to AEP ? Then I have no clue.

I had written a reply to these questions and must have pressed the wrong button.

Let's go again:

1) Would those bus station cabs still have the 'radio cab' and look like cabs?

ALL CABS IN BA LOOK ALIKE. YELLOW AND BLACK. RADIO CABS HAVE A SIGN THAT SAYS "RADIO TAXI". RADIO CABS ARE NO BETTER THAN REGULAR CABS, UNLESS YOU PHONE FOR THEM.

2) Also, are public places like museums and even retail stores generally closed on Sunday AND Monday in Buenos Aires?

CERTAINLY, I'M NO EXPERT ON MUSEUMS, BUT I'D SAY THEY ARE OPEN ON SUNDAYS AND PROBABLY CLOSED ON MONDAY. GO TO EACH MUSEUM'S WEBSITE TO FIND OUT FOR SURE.

ABOUT RETAIL STORES, I'D SAY MOST SMALL ONES CLOSE AT MIDDAY ON SATURDAY AND REOPEN MONDAY MORNING. MALLS AND SUPERMARKETS ARE THE EXCEPTION, AS THEY DO MUCH OF THEIR BUSINESS ON WEEKENDS.

3) What are typical retail store hours? Do they close mid day for a couple hours?

I'D SAY TYPICAL SMALL RETAIL STORE HOURS ARE FROM 9 AM TO 6 OR 7 PM. A FEW MAY CLOSE AT MIDDAY.

Have a great time in our town.

So much great information! Thank you!