There are hundreds of scheduled flights from the UK to America by major airlines. The main international airports are in Boston, New York, Washington, Miami, Chicago, Atlanta, Denver, San Francisco and Los Angeles, with hundreds of smaller airports dotted all over the country. With most visitors arriving by air, heavy competition on popular routes means that relatively inexpensive flights are often available. Check flight deals in partnership with Expedia.
There are also various cruise firms that run transatlantic sailings from the UK to the USA; for instance, Cunard sails from Southampton to New York roughly once a month.