Air: If you are looking to cover a lot of ground in a hurry, then flying is the best bet. There are numerous low-budget carriers that cover a majority of the major hot-spots.

• Jetblue.com
• Southwest.com
• Cheaptickets.com

USA Train Travel

Train: Although the train networks are not nearly up to par as in Europe, the US system still provides a comfortable, affordable option for those with a bit more time. The popular routes are on the eastern corridor: Washington D.C. – Philadelphia – New York – Boston.
Amtrax.com

Car Rental: The epitome of the ´American experience´, driving a car across the US is like no other place. In this car-loving society, having a vehicle gives you tremendous freedom and ability to explore the heart of the country. Rates are available on a daily/weekly basis and many of the agents will drop the car off at your U.S. apartment rental.

• nationalcar.com
• enterprise.com
• hertz.com
• avis.com
• dollar.com