| 21. United Airlines
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| Member of the Star Alliance with major hubs in Chicago, Denver, Washington DC-Dulles, Seattle, San Francisco, Raleigh, Tokyo, and London-Heathrow. |
| http://www.united.com |
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| 22. US Airways
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| Major hubs in Charlotte and Philadelphia. |
| http://www.usairways.com |
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| 23. Virgin America
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| Opened December 2005 with the motto the airline we hope you love; includes job openings, executive profiles, and updates on launch plans. |
| http://www.virginamerica.com |
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