Use the nifty tool above to compare all the best prices from all the airline and so that you can book a cheap flight to Dubai or Abu Dhabi. The tool works both ways so whether you are coming to or from the UAE and Gulf, you can search all the providers. You'll end up booking with the airline or travel agent directly. Flights to Dubai are usually particularly frequent with Emirates and British Airways cornering the market. That said, with the UAE being almost perfectly placed between the East and the West, it's quite possible that your flight to Dubai or flight to Abu Dhabi may only be a fleeting visit. But if you don't have any visa issues, take the opportunity to spend a couple of days checking out Dubai and Abu Dhabi.
If you are flying in to Abu Dhabi, there is a little less choice, but still a significant number of airlines fly in, and increasing all the time. The national airline and main airline in Abu Dhabi is Etihad. But again the big carriers, as well as some of the small ones operate here. The demand for flights between Abu Dhabi and the rest of the world is growing, some of which is due to Abu Dhabi's tourism programme. Because supply outstrips demand at the moment, it is possible to get a cheap flight to Abu Dhabi.
The airports are almost interchangeable bar a 200dhs taxi cost - so, if you get a flight to Dubai, and are visiting Abu Dhabi, expect to pay that amount. Similarly if you get a flight to Abu Dhabi, you'll pay roughly the same on a metred taxi and the trip will take just over an hour. A taxi from Dubai to Dubai city is about 30 minutes and same is true for Abu Dhabi.
Have a great flight enjoy your trip!