When flying in from another country you have a few more things to consider.
1) Currency. Exchange rates are very important in how much money you will ultimately spend. I advise that you do NOT use the general bank exchange rate of even VISA/AMEX etc exchange rates as these are not competitive. Instead look for a foreign currency exchange services group or use a global bank so that you can have a foreign currency account.
My experience has shown that the foreign currency exchange groups are the most competitive. Main benefits are you will be given a more competitive exchange rate (saves you money instantly on large transactions) and you can hedge the rate which protects you from random currency fluctuations during global or country based financial instability.
If you decide to use a foreign currency account from someone like HSBC or CitiGroup then you will need to become more involved in currency trading so that you can shift enough money ahead of time and not suffer short term fluctuations. Ideal for the regular traveller as you will then have US dollars to spend like a local. A combination of both recommendations above may even be applicable.
2) Return Flight. Facial procedures will make you look abnormal for a short period of time once the swelling and bruising develops, completely normal of course. So the challenge becomes when is the best time to venture into the world and travel home as you need to juggle hotel cost vs public embarrassment. I stayed 3 nights after having the fat transplant and found that while the swelling was very developed it had symmetry so that I was not so obvious. Additionally I wore a cap which helped conceal the oversized face. I'm sure people realised there was something weird about me although I did not attract stares.
3) Hotel. I stayed at the Holiday Inn Express Plano. Not very happy with this hotel as they double charged me for the stay and I am still battling to get my money back almost 2 months later...I'm sure it's a 1-off however they lack complete competency in resolving this! Breakfast was very average however it is free which is great and they provide a free local shuttle service.
4) Airport transfers. I recommend you plan ahead and book a shuttle as it is the cheapest ~$25. There are a couple to choose from so use Google to check them out. A taxi will cost you around $50.
5) Flights within the US. The US is designed for early bookings and you will certainly get the cheapest rate this way. I used a combination of expedia, Priceline and Orbitz to find the best rates.
Thats all for now, I hope it helps you.